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Sunpower Corporation patents


Recent patent applications related to Sunpower Corporation. Sunpower Corporation is listed as an Agent/Assignee. Note: Sunpower Corporation may have other listings under different names/spellings. We're not affiliated with Sunpower Corporation, we're just tracking patents.

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 new patent  Thermo-compression bonding tool with high temperature elastic element

A thermo-compression bonding tool with a high temperature elastic element, and methods of bonding a metal sheet to a substrate using a thermo-compression bonding tool are described. In an example, a system for bonding a metal sheet to a substrate includes a stage to support the substrate and an elastic roller located above the stage. ... Sunpower Corporation

Converter topologies and control

Systems, methods, and articles of manufacture are provided wherein inverter topologies and inverter control employ primary and secondary windings with a half-bridge circuit and an unfolding bridge circuit positioned between the second winding and an ac grid. Certain topologies may employ control circuits for controlling the bridges suitable for a phase angle of the ac grid.. ... Sunpower Corporation

Solar cells with improved lifetime, passivation and/or efficiency

A method of fabricating a solar cell can include forming a dielectric region on a silicon substrate. The method can also include forming an emitter region over the dielectric region and forming a dopant region on a surface of the silicon substrate. ... Sunpower Corporation

High current burn-in of solar cells

A method of high reverse current burn-in of solar cells and a solar cell with a burned-in bypass diode are described herein. In one embodiment, high reverse current burn-in of a solar cell with a tunnel oxide layer induces low breakdown voltage in the solar cell. ... Sunpower Corporation

Method and system for communication between inverter and solar module

Technologies for communication between an inverter and a solar module are disclosed. The disclosed technologies include monitoring a voltage and/or current of the solar module to determine a corresponding voltage waveform and/or current waveform and determining whether the voltage waveform and/or current waveform includes an encoded message. ... Sunpower Corporation

Three-level inverter switching

Inverter circuit operation for managing power factor changes is provided. Various modes of switch timing may be employed near zero-voltage crossings. ... Sunpower Corporation

Multipolar photovolatic panel

A multipolar solar module may include a string of series-connected solar cells and three or more terminals that are coupled to a module-level power electronic device (mlpe). A first terminal may be coupled to positive end of the string of series-connected solar cells, a second terminal may be coupled to the midpoint of the string of series-connected, and a third terminal may be coupled to the negative end of the string of series-connected solar cells. ... Sunpower Corporation

Solar cell having a plurality of sub-cells coupled by cell level interconnection

Methods of fabricating solar cells having a plurality of sub-cells coupled by cell level interconnection, and the resulting solar cells, are described herein. In an example, a solar cell includes a plurality of sub-cells. ... Sunpower Corporation

Metallization structures for solar cells

Methods of fabricating a solar cell including metallization techniques and resulting solar cells, are described. In an example, forming a first semiconductor region and a second semiconductor region on the back side of a substrate. ... Sunpower Corporation

Bowing semiconductor wafers

Methods for processing semiconductor wafers, methods for loading semiconductor wafers into wafer carriers, and semiconductor wafer carriers. The methods and wafer carriers can be used for increasing the rigidity of wafers, e.g., large and thin wafers, by intentionally bowing the wafers to an extent that does not break the wafers. ... Sunpower Corporation

Semiconductor wafer carriers

Semiconductor wafer carriers, methods for manufacturing the semiconductor wafer carriers, and methods for using the semiconductor wafer carriers. The semiconductor wafer carriers can include features for avoiding double-slotting, for preventing glove marks on semiconductor wafers, and for providing additional sitting and storage options for the wafer carrier. ... Sunpower Corporation

Point-of-use enrichment of gas mixtures for semiconductor structure fabrication and systems for providing point-of-use enrichment of gas mixtures

Point-of-use enrichment of gas mixtures for semiconductor structure fabrication, and systems for providing point-of-use enrichment of gas mixtures, are described herein. In an example, a system for fabricating a semiconductor structure includes a process chamber for processing a substrate of a semiconductor structure. ... Sunpower Corporation

Filter component reduction

Reduction as well as elimination of the use of discrete inductors or other filtering components for photovoltaic (pv) module-level power electronics (mlpe) is provided. This reduction may serve to promote two-dimensional circuit topology designs of mlpes as well as promote efficiencies and reliability linked to diminished or eliminated inductor, or other filtering component(s), presence or use in mlpes or related components or systems.. ... Sunpower Corporation

Variable profile solar-tracking photovoltaic system

Described herein are improved solar tracker systems having variable profiles and related operating methods thereof. Solar-tracking pv systems with variable twisted or aerodynamic profiles offer several advantages including improved wind stability, improved shading characteristics and/or capability to correct system component misalignment. ... Sunpower Corporation

06/21/18 / #20180175221

Solar cells having differentiated p-type and n-type architectures

Methods of fabricating solar cell emitter regions with differentiated p-type and n-type region architectures, and the resulting solar cells, are described herein. In an example, a solar cell includes an n-type semiconductor substrate having a light-receiving surface and a back surface. ... Sunpower Corporation

06/07/18 / #20180159333

Alternative source module array characterization

A system and method for mapping relative positions of a plurality of alternative energy source modules. In one embodiment, the method includes injecting a first contribution current into a power grid by a first alternative energy source module of the plurality of alternative energy source modules and determining an output voltage for each of the plurality of alternative energy source modules. ... Sunpower Corporation

05/31/18 / #20180149390

Drive with integrated inclination sensor

A drive can include a positional sensor within an outer housing of the drive so as to provide an output indicative of a position of the drive. The positional sensor can be an inclinometer. ... Sunpower Corporation

05/24/18 / #20180145201

Solar energy receiver

Embodiments of the present invention may utilize one or more techniques, alone or in combination, to maximize a surface area of a receiver that is configured to convert light into another form of energy. One technique enhances collection efficiency by controlling a size, shape, and/or position of a cell relative to an expected illumination profile under various conditions. ... Sunpower Corporation

05/17/18 / #20180138328

Uv-curing of light-receiving surfaces of solar cells

Methods of fabricating solar cells using uv-curing of light-receiving surfaces of the solar cells, and the resulting solar cells, are described herein. In an example, a method of fabricating a solar cell includes forming a passivating dielectric layer on a light-receiving surface of a silicon substrate. ... Sunpower Corporation

05/10/18 / #20180131190

Energy flow prediction for electric systems including photovoltaic solar systems

Methods, systems, and computer storage media are disclosed for determining electric energy flow predictions for electric systems including photovoltaic solar systems. In some examples, a method is performed by a computer system and includes supplying a consumption time series and a predicted production time series for an electric system to a machine-learning predictor trained during a prior training phase using electric energy consumption training data and photovoltaic production training data. ... Sunpower Corporation

05/10/18 / #20180130920

Solar cell having a plurality of sub-cells coupled by a metallization structure

Solar cells having a plurality of sub-cells coupled by metallization structures, and singulation approaches to forming solar cells having a plurality of sub-cells coupled by metallization structures, are described. In an example, a solar cell, includes a plurality of sub-cells, each of the sub-cells having a singulated and physically separated semiconductor substrate portion. ... Sunpower Corporation

04/19/18 / #20180109224

Remote array mapping

Electrical component location is provided. Employed location techniques may include providing a cycling signal, having components to be located sense the cycling signal at the same time, report back the sensed signal, and determining relative locations for one or more of the components using the sensed signals reported by the components.. ... Sunpower Corporation

04/12/18 / #20180102453

Solar cell interconnection

A solar cell can include a conductive foil having a first portion with a first yield strength coupled to a semiconductor region of the solar cell. The solar cell can be interconnected with another solar cell via an interconnect structure that includes a second portion of the conductive foil, with the interconnect structure having a second yield strength greater than the first yield strength.. ... Sunpower Corporation

04/05/18 / #20180097452

Multiple inverter coupling and operation

A multi-inverter system with at least a string of inverters sharing a dc bus and outputting to a shared ac bus. Inverters are hot-swappable and configured to be turned on or off during powered cycles. ... Sunpower Corporation

04/05/18 / #20180097360

Systemic optimization of photovoltaic apparatus

A photovoltaic system may include a first photovoltaic component having local power optimization functionality to process power at a first level, a second photovoltaic component to process power at a second level, and optimization logic to command the first photovoltaic component to accommodate system-level power optimization. The first component may be reconfigurable to accommodate the system-level optimization. ... Sunpower Corporation

04/05/18 / #20180097143

Solar cell emitter region fabrication with differentiated p-type and n-type architectures and incorporating dotted diffusion

Methods of fabricating solar cell emitter regions with differentiated p-type and n-type architectures and incorporating dotted diffusion, and resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface and a back surface. ... Sunpower Corporation

04/05/18 / #20180097141

Conductive foil based metallization of solar cells

Methods of fabricating a solar cell, and system for electrically coupling solar cells, are described. In an example, the methods for fabricating a solar cell can include forming a first cut portion from a conductive foil. ... Sunpower Corporation

04/05/18 / #20180097131

Solar cells with differentiated p-type and n-type region architectures

Methods of fabricating solar cell emitter regions with differentiated p-type and n-type regions architectures, and resulting solar cells, are described. In an example, a solar cell can include a substrate having a light-receiving surface and a back surface. ... Sunpower Corporation

04/05/18 / #20180097129

Metallization of solar cells using metal foils

A solar cell structure includes p-type and n-type doped regions. A dielectric spacer is formed on a surface of the solar cell structure. ... Sunpower Corporation

03/29/18 / #20180091091

Systems and methods for improved installation and grounding of photovoltaic assemblies

Improved pv assemblies for converting solar radiation to electrical energy and methods of installation thereof are disclosed herein. Pv arrays comprising a plurality pv modules are also described herein. ... Sunpower Corporation

03/29/18 / #20180087558

Water sealing surface attachment

A mounting assembly for securing fixtures to a mounting structure may include a first fastener, a washer, a mounting bracket, and second fastener. The first fastener may be coupled to the mounting structure through a mounting aperture. ... Sunpower Corporation

03/22/18 / #20180083450

Photovoltaic systems with voltage limiting devices

A photovoltaic system includes voltage limiting devices that are connected in series. A voltage limiting device clips a corresponding photovoltaic string to limit a voltage of the photovoltaic string. ... Sunpower Corporation

03/22/18 / #20180083446

Plug-in distributed energy resource

A distributed energy resource (der) may store electrical power from an ac circuit and discharge stored electrical power to the ac circuit. A der may be coupled to the ac circuit via a plug inserted into a receptacle coupled to the ac circuit, and a load device may be plugged into the der via a receptacle of the der. ... Sunpower Corporation

03/22/18 / #20180083144

Foil trim approaches for foil-based metallization of solar cells

Foil trim approaches for the foil-based metallization of solar cells and the resulting solar cells are described. For example, a method involves attaching a metal foil sheet to a metallized surface of an underlying supported wafer to provide a unified pairing of the metal foil sheet and the wafer. ... Sunpower Corporation

03/15/18 / #20180073773

Sun tracking solar energy collection system with torsion lock

A rotation locking device for use in a row-level sun tracking solar energy collection system includes a housing, a first locking member, a second locking member, and an actuator. The housing is configured to be mounted to a pile and configured to permit a torque tube to extend through the housing. ... Sunpower Corporation

03/01/18 / #20180062569

Photovoltiac module mounting assembly having a pin constraint

A mounting assembly for a photovoltaic (pv) module, and systems including such mounting assemblies, are described. In an example, the mounting assembly includes a top support and a bottom support having respective mounting walls, and holes through the mounting walls. ... Sunpower Corporation

03/01/18 / #20180062568

Photovoltaic module clip

A photovoltaic (pv) module clip, and methods of fastening a pv module to a structural member using the pv module clip, are described. In an example, a pv module clip includes a toe portion interconnected with several legs by a neck portion. ... Sunpower Corporation

03/01/18 / #20180062567

Photovoltaic module mounting assembly having a retainer

A mounting assembly for a photovoltaic (pv) module, and systems including such mounting assemblies, are described. In an embodiment, the mounting assembly includes a top strut to support a pv module, and a retainer fixed relative to the top strut. ... Sunpower Corporation

03/01/18 / #20180062566

Multi-drive solar-tracking photovoltaic system

A multi-drive solar-tracking photovoltaic (pv) system having several pv modules mounted on a torque tube is described. In an example, several motor drives input torque to the torque tube, and the motor drives are controlled by a single controller. ... Sunpower Corporation

03/01/18 / #20180062565

Photovoltaic system bearing assembly

A photovoltaic (pv) system having a bearing assembly to support pv modules is described. In an example, the bearing assembly includes a pair of bearing supports having respective sub-rims. ... Sunpower Corporation

03/01/18 / #20180062564

Solar-tracking system drive having an offset gear

A solar-tracking photovoltaic (pv) system having a motor drive vertically below a pv module, is described. In an example, the motor drive rotates a torque tube holding the pv module. ... Sunpower Corporation

03/01/18 / #20180062563

Torque tube coupler

A solar-tracking photovoltaic (pv) system having several pv modules mounted on a torque tube is described. The torque tube may include several sections joined by a torque tube coupler. ... Sunpower Corporation

03/01/18 / #20180062561

End clamp for mounting solar module to rail

A solar power system may include rails, solar modules, and a plurality of clamps to secure the solar modules to the rails. An end clamp may be partially disposed inside a rail at an end of the rail. ... Sunpower Corporation

03/01/18 / #20180062559

Systems and methods for improved installation of photovoltaic assemblies

Pv assemblies for converting solar radiation into electrical energy, and methods of installation thereof, are disclosed herein. A pv assembly can include a mounting structure for mounting or supporting pv modules of a pv array. ... Sunpower Corporation

02/22/18 / #20180054157

Systems and methods for improved installation of photovoltaic assemblies

Improved photovoltaic (pv) assemblies for converting solar radiation to electrical energy and methods of installation thereof are disclosed herein. Pv arrays comprising a plurality pv modules are also described herein. ... Sunpower Corporation

02/22/18 / #20180054066

Device and method for global maximum power point tracking

A device, system, and method for global maximum power point tracking comprises monitoring an output power of a dc power source while executing a maximum power point tracking algorithm and adjusting a maximum power point tracking command signal in response to the output power being less than a reference output power. The command signal is adjusted until the output power exceeds a previous output power by a reference amount. ... Sunpower Corporation

02/22/18 / #20180053860

Bifacial solar cell module with backside reflector

A bifacial solar cell module includes solar cells that are protected by front side packaging components and backside packaging components. The front side packaging components include a transparent top cover on a front portion of the solar cell module. ... Sunpower Corporation

02/08/18 / #20180041165

High throughput system for photovoltaic uv degradation testing

High throughput systems for photovoltaic uv degradation testing of solar cells, and methods of testing for uv degradation of solar cell during manufacture, are described herein. In an example, a high throughput solar cell testing apparatus includes a plurality of real time ultra-violet (rtuv) testing modules. ... Sunpower Corporation

02/08/18 / #20180040746

Passivation of light-receiving surfaces of solar cells with high energy gap (eg) materials

Methods of passivating light-receiving surfaces of solar cells with high energy gap (eg) materials, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface. ... Sunpower Corporation

02/01/18 / #20180033902

Shingled solar cells overlapping along non-linear edges

Solar devices and methods for producing solar devices are disclosed. In some examples, a solar device includes solar cells arranged in a shingled manner such that adjacent long edges of adjacent ones of the solar cells overlap. ... Sunpower Corporation

02/01/18 / #20180033894

Metal-foil-assisted fabrication of thin-silicon solar cell

One embodiment relates to a method of fabricating a solar cell. A silicon lamina is cleaved from the silicon substrate. ... Sunpower Corporation

01/25/18 / #20180026575

Solar roof mounting surface transition

A fixture may be installed on a mounting surface such as a roof of a structure. The fixture may be coupled to round elongated components such as wires, cables, conduits, pipes, or tubes that need to be transitioned from the exterior of the structure on top of the mounting surface to the interior of the structure below the mounting surface by passing through the mounting surface. ... Sunpower Corporation

01/18/18 / #20180019364

Bonds for solar cell metallization

A solar cell can include a substrate and a semiconductor region disposed in or above the substrate. The solar cell can also include a conductive contact disposed on the semiconductor region with the conductive contact including a conductive foil bonded to the semiconductor region.. ... Sunpower Corporation

01/04/18 / #20180006602

Photovoltaic module having an external electrical connector

A photovoltaic module having an external electrical connector is described. For example, the photovoltaic module may include a plug receptacle mounted on a module laminate, and a contact may extend from a photovoltaic cell within the module laminate into a plug channel of the plug receptacle. ... Sunpower Corporation

01/04/18 / #20180006599

Photovoltaic panel having a distributed support frame

A photovoltaic panel having a photovoltaic module supported by a distributed support frame is described. The distributed support frame may include a support member extending over a back surface of the photovoltaic module. ... Sunpower Corporation

01/04/18 / #20180006598

Photovoltaic panel having an adhered support frame

A photovoltaic panel having a distributed support frame adhered to a photovoltaic module is described. For example, the distributed support frame may include one or more support member or support mounts adhered to the photovoltaic module by an adhesive layer. ... Sunpower Corporation

01/04/18 / #20180006575

Converter topologies and control

Systems, methods, and articles of manufacture are provided wherein inverter topologies and inverter control employ primary and secondary windings with a half-bridge circuit and an unfolding bridge circuit positioned between the second winding and an ac grid. Certain topologies may employ control circuits for controlling the bridges suitable for a phase angle of the ac grid.. ... Sunpower Corporation

01/04/18 / #20180006464

Backfeed power supply for solar power system

A solar collection system may collect energy from the sun to generate electricity for distribution on an electrical grid. In addition to generating electricity, a solar collection system may include support devices such as motors, controllers, sensors, and other support devices to perform various tasks to allow the solar collection system to more effectively generate electricity. ... Sunpower Corporation

01/04/18 / #20180006463

Microinverter systems and subsystems

An alternating current (ac) module system includes branch circuits and a main service panel to receive power from the branch circuits. A photovoltaic (pv) supervisor is located between the branch circuits and the panel. ... Sunpower Corporation

01/04/18 / #20180006172

Metallization structures for solar cells

Solar cells having conductive contacts are described. In an example, a solar cell can include a protective layer disposed over a substrate, where the protective layer comprises a contact hole. ... Sunpower Corporation

01/04/18 / #20180006171

Laser techniques for foil-based metallization of solar cells

Methods of fabricating a solar cell including metallization techniques and resulting solar cells, are described. In an example, a semiconductor region can be formed in or above a substrate. ... Sunpower Corporation

01/04/18 / #20180006170

Protective region for metallization of solar cells

Methods of fabricating a solar cell including metallization techniques and resulting solar cells, are described. In an example, a first and second semiconductor regions can be formed in or above a substrate, where a separation region is disposed between the first and second semiconductor regions. ... Sunpower Corporation

01/04/18 / #20180005855

Multi-axis flattening tool and method

A multi-axis flattening tool and method are described. In an example, the multi-axis flattening tool includes a support structure to constrain a bowed wafer along a support perimeter, and a pair of flattening structures independently movable relative to the support structure. ... Sunpower Corporation

01/04/18 / #20180001420

Wafer alignment with restricted visual access

Wafer alignment with restricted visual access has been disclosed. In an example, a method of processing a substrate for fabricating a solar cell involves supporting the substrate over a stage. ... Sunpower Corporation

12/28/17 / #20170373635

Photovoltaic systems comprising docking assemblies

Photovoltaic (pv) assemblies and modules comprising electronic component docking assemblies are described herein. Docking assemblies can comprise a junction box and an electronic component housing configured to be reversibly connected or “docked.” the photovoltaic assemblies and modules described herein facilitate field replacement or removal of electronic components e.g. ... Sunpower Corporation

12/14/17 / #20170359019

Systems and methods for reworking shingled solar cell modules

A high efficiency configuration for a solar cell module comprises solar cells arranged in a shingled manner to form super cells, which may be arranged to efficiently use the area of the solar module, reduce series resistance, and increase module efficiency. Removing a defective solar cell from a super cell may be difficult, however. ... Sunpower Corporation

12/07/17 / #20170354057

Junction box thermal management

An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.. . ... Sunpower Corporation

11/30/17 / #20170346293

Verifying status of a termination end cap of a microinverter chain

A photovoltaic (pv) system includes a system control module that determines the presence of a microinverter chain termination end cap. The end cap includes an embedded circuit. ... Sunpower Corporation

11/16/17 / #20170330993

Roll-to-roll metallization of solar cells

Disclosed herein are approaches to fabricating solar cells, solar cell strings and solar modules using roll-to-roll foil-based metallization approaches. Methods disclosed herein can comprise the steps of providing at least one solar cell wafer on a first roll unit and conveying a metal foil to the first roll unit. ... Sunpower Corporation

11/16/17 / #20170330988

Trench process and structure for backside contact solar cells with polysilicon doped regions

A solar cell includes polysilicon p-type and n-type doped regions on a backside of a substrate, such as a silicon wafer. A trench structure separates the p-type doped region from the n-type doped region. ... Sunpower Corporation

10/26/17 / #20170310108

Device and method for electrically decoupling a solar module from a solar system

Devices and methods for electrically decoupling a solar module from a solar system are described. In one embodiment, a solar system includes a string of a plurality of solar modules coupled with an inverter through a dc power line. ... Sunpower Corporation

10/26/17 / #20170309759

Epitaxial silicon solar cells with moisture barrier

A thin epitaxial silicon solar cell includes one or more layers of doped oxides on the backside. A silicon nitride layer that serves as a moisture barrier is formed on the one or more layers of doped oxides. ... Sunpower Corporation

10/05/17 / #20170288599

Automated commissioning and inspection for pv systems

An electric system includes a local power controller and solar panel system that includes a plurality of solar modules on one or more branch circuits. A method for commissioning the electric system includes an installer using a commissioning device to send and receive information from a remote system and the local power controller performing an automatic self-test of the electric system. ... Sunpower Corporation

09/28/17 / #20170279375

Soft switching technique for a grid-tied inverter

A method, system, and computer-readable medium facilitate a soft switching technique for operating an inverter. In a full bridge inverter, a one of first set of transistors in the inverter may be rapidly activated and deactivated in pulses while one of a second set of transistor may be activated during a switching time period where the inverter matches the voltage and frequency of an ac grid. ... Sunpower Corporation

09/21/17 / #20170271538

Module level solution to solar cell polarization using an encapsulant with opened uv transmission curve

A solar cell module includes interconnected solar cells, a transparent cover over the front sides of the solar cells, and a backsheet on the backside of the solar cells. An encapsulant protectively packages the solar cells. ... Sunpower Corporation

09/14/17 / #20170263795

Method of fabricating an emitter region of a solar cell

Methods of fabricating emitter regions of solar cells are described. Methods of forming layers on substrates of solar cells, and the resulting solar cells, are also described.. ... Sunpower Corporation

08/31/17 / #20170250297

Photovoltaic cell and laminate metallization

A photovoltaic laminate is disclosed. Embodiments include placing a first encapsulant on a substantially transparent layer that includes a front side of a photovoltaic laminate. ... Sunpower Corporation

08/24/17 / #20170243986

Solar panel

A high efficiency configuration for a solar cell module comprises solar cells arranged in an overlapping shingled manner and conductively bonded to each other in their overlapping regions to form super cells, which may be arranged to efficiently use the area of the solar module.. . ... Sunpower Corporation

07/27/17 / #20170213929

Solar panel

A high efficiency configuration for a solar cell module comprises solar cells arranged in an overlapping shingled manner and conductively bonded to each other in their overlapping regions to form super cells, which may be arranged to efficiently use the area of the solar module.. . ... Sunpower Corporation

06/29/17 / #20170187192

Solar tracker system

Solar tracker systems having several rows of photovoltaic strings individually actuated by respective tracker control systems, are described. In an example, a solar tracker system includes a tracker control system having a tracker controller powered by forward-fed power from a photovoltaic string, e.g., during daytime, and powered by back-fed power from a station hub, e.g., during nighttime. ... Sunpower Corporation

06/15/17 / #20170170777

Pv wind performance enhancing methods

Pressure equalization between upper and lower surfaces of pv modules of an array of pv modules can be enhanced in several ways. Air gaps opening into the air volume, defined between the pv modules and the support surface, should be provided between adjacent pv modules and along the periphery of the array. ... Sunpower Corporation

06/08/17 / #20170163042

Distributed energy conversion systems

A distributed energy conversion system may include one or more dc power sources and two or more inverters to convert dc power from the power sources to ac power. The ac power from the two or more inverters may be combined to provide a single ac output. ... Sunpower Corporation

06/08/17 / #20170162728

Etching of solar cell materials

A solar cell is fabricated by etching one or more of its layers without substantially etching another layer of the solar cell. In one embodiment, a copper layer in the solar cell is etched without substantially etching a topmost metallic layer comprising tin. ... Sunpower Corporation

04/27/17 / #20170115119

Automated photovoltaic geospatial location

Location functionality to determine the geospatial location of a pv module is described. This functionality may be performed at the pv module site itself as well as remote from the pv module site. ... Sunpower Corporation

04/13/17 / #20170104447

Photovoltaic management and module-level power electronics

A photovoltaic (pv) system includes module-level power electronic (mlpe) devices that produce energy. The pv system includes a gateway to receive and send data to mlpe devices. ... Sunpower Corporation

04/06/17 / #20170099028

Clamps for solar systems

A solar power system can include a rail and a solar module disposed on the rail. A clamp assembly can couple the solar module to the rail. ... Sunpower Corporation

03/30/17 / #20170093333

Power inverter docking system for photovoltaic modules

An electronics module docking system includes docking member removably coupled to a photovoltaic module. The docking system includes a first connector port electrically coupled to one or more photovoltaic cells of the photovoltaic module. ... Sunpower Corporation

03/30/17 / #20170093330

Self-cleaning solar power system

A photovoltaic (pv) module cleaning system can include a robotic cleaning device and a support system. The support system can be configured to provide a metered fill to the robotic cleaning device.. ... Sunpower Corporation

03/30/17 / #20170093163

Methods and systems for maintaining photovoltaic power plant reactive power capability

Methods, systems, and computer readable media are disclosed for maintaining photovoltaic power plant reactive power capability, e.g., through the manipulation of direct current (dc) voltage. In some examples, a control system includes a monitor input for receiving a monitor signal indicative of an input voltage of an inverter system and a control output for outputting a control signal to a voltage-clipping device of a solar panel system supplying a solar output voltage to the inverter system. ... Sunpower Corporation

03/30/17 / #20170091842

Methods, systems, and computer readable media for selecting a proposed utility rate structure for a residential electric system

Methods, systems, and computer readable media are disclosed for selecting a proposed utility rate structure for a residential electric system. In some examples, a method is performed by one or more computers and includes receiving a historic consumption time series of electric consumption measurements of a residential electric system. ... Sunpower Corporation

03/23/17 / #20170086013

Communicating with arrays of module units

Methods and systems include moving a mobile communication unit along a plurality of module units, and exchanging data with one of the plurality of module units based at least upon the mobile communication unit being in proximity to the one of the plurality of module units.. . ... Sunpower Corporation

03/23/17 / #20170085288

Communication systems adaptable to power line communications

A communication system and method of operating the same that includes, in one embodiment, a transmit filter including a transmit filter capacitor, and a receive filter coupled to the transmit filter. The communication system also includes a switch, coupled to an auxiliary winding of a transformer and to the transmit filter capacitor, configured to alter an impedance of the transmit filter during a receive mode of operation of the communication system. ... Sunpower Corporation

03/23/17 / #20170085217

High efficiency configuration for solar cell string

A high efficiency configuration for a string of solar cells comprises series-connected solar cells arranged in an overlapping shingle pattern. Front and back surface metallization patterns may provide further increases in efficiency.. ... Sunpower Corporation

03/23/17 / #20170085215

Solar power generation assembly and method for providing same

The present invention relates to a solar power generation assembly and method for providing same involving an array of solar generating modules on a dual-incline structure, which can achieve high energy yields over a wide range of azimuths/orientations. The assembly consists of canopy wings providing for the dual-incline structure, where, depending on specifications, the canopy wings can differ in length, width, angle of inclination, structural material and solar module or other material mounted on the surface. ... Sunpower Corporation

03/16/17 / #20170077343

Shingled solar cell module

A high efficiency configuration for a solar cell module comprises solar cells conductively bonded to each other in a shingled manner to form super cells, which may be arranged to efficiently use the area of the solar module, reduce series resistance, and increase module efficiency. The front surface metallization patterns on the solar cells may be configured to enable single step stencil printing, which is facilitated by the overlapping configuration of the solar cells in the super cells. ... Sunpower Corporation

03/09/17 / #20170070156

Communication within a power inverter using transformer voltage frequency

Communicating across a power transformer is provided. Processes can include outputting a cyclical voltage at an alternating frequency across a multiple winding transformer and modulating the frequency of the alternating voltage to provide communication across the transformer. ... Sunpower Corporation

03/09/17 / #20170069777

Patterned thin foil

An adhesive may be applied to a surface of a reusable carrier. Metal foil may be attached to the adhesive to couple the metal foil to the surface of the reusable carrier. ... Sunpower Corporation

03/02/17 / #20170063294

Concentrating solar reflector and power system

Concentrating reflectors for solar energy systems can include compound curvatures producing distinct beams of light which can be aimed and shaped so as to be superimposed at a desired location, such as a plane or a solar energy receiver. Additionally, the distinct beams can have different converging characteristics producing different irradiation intensity patterns on the desired location and which when added, produce more uniform irradiation intensity distribution over the desired location.. ... Sunpower Corporation

03/02/17 / #20170063094

Power processing

Differential power processing (dpp) converters are used within circuit architecture of solar power modules to process the mismatched power between solar elements in a power module. The dpp converters use various topologies to process the mismatched power. ... Sunpower Corporation

02/23/17 / #20170054409

Photovoltaic thermal hybrid solar collector

A laminated photovoltaic thermal (pv/t) module for a pv/t hybrid solar collector comprising a cooler/absorber and a photovoltaic unit. The cooler/absorber includes at least one flat surface with raised peripheral edges and is adapted to function as a mould for a photovoltaic laminate structure. ... Sunpower Corporation

02/23/17 / #20170054047

Solar panel

A high efficiency configuration for a solar cell module comprises solar cells arranged in an overlapping shingled manner and conductively bonded to each other in their overlapping regions to form super cells, which may be arranged to efficiently use the area of the solar module. Rear surface electrical connections between solar cells in electrically parallel super cells provide alternative current paths (i.e., detours) through the solar module around damaged, shaded, or otherwise underperforming solar cells.. ... Sunpower Corporation

02/16/17 / #20170047888

Preventing harmful polarization of solar cells

In one embodiment, harmful solar cell polarization is prevented or minimized by providing a conductive path that bleeds charge from a front side of a solar cell to the bulk of a wafer. The conductive path may include patterned holes in a dielectric passivation layer, a conductive anti-reflective coating, or layers of conductive material formed on the top or bottom surface of an anti-reflective coating, for example. ... Sunpower Corporation

02/09/17 / #20170038098

End clamps for solar systems

A solar power system can include an array of solar modules. The system can include a rail and a solar module positioned at an outer end of the array. ... Sunpower Corporation

02/02/17 / #20170033734

Thermal management of systems with electric components

Methods, systems, and computer readable media are disclosed for thermal management of a system of one or more electric components. In some examples, the system includes a housing, one or more electric components, one or more temperature sensors on or in the housing, and a thermal management circuit coupled to the electric components and the temperature sensors. ... Sunpower Corporation

02/02/17 / #20170033251

Front contact solar cell with formed electrically conducting layers on the front side and backside

A bipolar solar cell includes a backside junction formed by a silicon substrate and a first doped layer of a first dopant type on the backside of the solar cell. A second doped layer of a second dopant type makes an electrical connection to the substrate from the front side of the solar cell. ... Sunpower Corporation

02/02/17 / #20170033248

Preventing harmful polarization of solar cells

In one embodiment, harmful solar cell polarization is prevented or minimized by providing a conductive path that bleeds charge from a front side of a solar cell to the bulk of a wafer. The conductive path may include patterned holes in a dielectric passivation layer, a conductive anti-reflective coating, or layers of conductive material formed on the top or bottom surface of an anti-reflective coating, for example. ... Sunpower Corporation

02/02/17 / #20170030950

Solar energy metering, communications, and control system

Methods, systems, and computer readable media are disclosed for monitoring photovoltaic solar systems. In some examples, the system includes a solar power measurement input for coupling to a solar panel system, a measurement circuit configured to measure power produced by the solar panel system using the solar power measurement input, and a data transmission system. ... Sunpower Corporation

01/19/17 / #20170019060

Pv system with wind performance enhancement

Pressure equalization between upper and lower surfaces of pv modules of an array of pv modules can be enhanced in several ways. Air gaps opening into the air volume, defined between the pv modules and the support surface, should be provided between adjacent pv modules and along the periphery of the array. ... Sunpower Corporation

01/12/17 / #20170012437

Device and method for global maximum power point tracking

A device, system, and method for global maximum power point tracking comprises monitoring an output power of a dc power source while executing a maximum power point tracking algorithm and adjusting a maximum power point tracking command signal in response to the output power being less than a reference output power. The command signal is adjusted until the output power exceeds a previous output power by a reference amount. ... Sunpower Corporation

01/12/17 / #20170012152

Module assembly for thin solar cells

Solar cells are packaged by placing the solar cells between sheets of encapsulants. The encapsulants are exposed to ultraviolet (uv) light to cure the encapsulants and bond the encapsulants together to encapsulate the solar cells. ... Sunpower Corporation

01/05/17 / #20170005614

Support for solar energy collectors

A solar energy collection system can include support devices configured to accommodate misalignment of components during assembly. For example, the system can include piles fixed to the earth and an adjustable bearing assembly at the upper end of the pile. ... Sunpower Corporation








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