Abstract: The present invention provides methods and systems to estimate energy losses due to partial equipment failure in photovoltaic (PV) systems based on measured power and energy data, weather data, PV system configuration information, and modeled power and energy generation data.

Abstract: The present invention provides methods and systems to estimate energy losses due to shading in PV systems from data including the measured energy and power produced over the lifetime of the system, the system size and configuration data, the weather conditions (including irradiance, ambient & panel temperature, and wind conditions) over the lifetime of the system, and derived meteorological condition information (e.g., decomposed irradiance values at any time).

Abstract: The present invention provides methods and systems to estimate energy losses due to soiling in photovoltaic (PV) systems from data including the measured energy and power produced over the lifetime of the system, the system size and configuration data, the weather conditions (including irradiance, precipitation, ambient and panel temperature, and wind conditions) over the lifetime of the system, and derived meteorological condition information (e.g., the history of clear-sky conditions at the location of the site).

Abstract: An electrical unit with modular hardware structure in which more complex and unsafe portions of the device are restricted for access by a qualified electrician only, whereas safe areas are made accessible to a non-electrician user, such as a homeowner or a low expertise technician, to help diagnose issues and/or upgrade the functionality of the device without requiring the presence of a high expertise technician/electrician. The restricted portion includes a main Printed Circuit Board (PCB) that is selectively populated with certain circuit components and that contains electrical connections to enable the electrical unit to be operated in a number of different operating configurations depending on which components are populating the main PCB. A smaller, interconnect PCB also may be provided in the restricted portion and hardware-paired with the main PCB to facilitate wiring of the main PCB via the interconnect PCB and add further modularity to the electrical interconnect scheme.

Abstract: The present invention relates to methods and systems for identifying PV system and solar irradiance sensor orientation and tilt based on energy production, energy received, simulated energy production, estimated energy received, production skew, and energy received skew. The present invention relates to systems and methods for detecting orientation and tilt of a PV system based on energy production and simulated energy production; for detecting the orientation and tilt of a solar irradiance sensor based on solar irradiance observation and simulated solar irradiance observation; for detecting orientation of a PV system based on energy production and energy production skew; and for detecting orientation of a solar irradiance sensor based on solar irradiance observation and solar irradiance observation skew.

Abstract: A system and method in which production measurement for renewable energy is obtained in a storage-independent manner. Energy storage is separated out from the renewable generation to provide individual performance analytics in DC-coupled and AC-coupled renewable energy systems with critical and auxiliary loads. A monitoring unit uses device communication and metering to enable revenue-grade production measurement for renewable source and energy storage periodically at specified time intervals. The production measurement for the renewable source is obtained in a form that would be comparable to renewable installations without storage. Additionally, multiple energy flows may be used by the monitoring unit to arrive at a storage efficiency value that can be attributed to the storage unit and how the storage unit is operated in the renewable energy system. The storage efficiency quantifies efficiency losses arising from the use of a storage unit to estimate the actual impact of storage on energy production.

Abstract: A computer processor implemented method of identifying the location of a renewable energy system; providing a set of renewable energy systems having at least two location-known renewable energy systems each having a longitude and latitude pair and production data; providing at least one location-unknown renewable energy system in a computer processor; correlating by a computer processor each location-unknown renewable energy system to at least one location-known renewable energy system according to location-known renewable energy systems longitude and latitude pair and production data; providing a best-fit location for each location-unknown renewable energy system by triangulating the location-unknown renewable energy system to provide a triangulated latitude and longitude; setting the triangulated latitude and longitude for the location-unknown renewable energy system to become a location-known renewable energy system that is part of the set of renewable energy systems.

Abstract: A system and method in which production measurement for renewable energy is obtained in a storage-independent manner. Energy storage is separated out from the renewable generation to provide individual performance analytics. A monitoring unit uses device communication and metering to enable revenue-grade production measurement for renewable source and energy storage periodically at specified time intervals. The production measurement for the renewable source is obtained in a form that would be comparable to renewable installations without storage, for accurate billing, maintenance, and performance analytics. Additionally, multiple energy flows may be used by the monitoring unit to arrive at a storage efficiency value that can be attributed to the storage unit and how the storage unit is operated in the renewable energy system.

Abstract: Solar irradiance, the energy from the Sun's electromagnetic radiation, has a wide range of applications from meteorology to agronomy to solar power. Solar irradiance is primarily determined by a location's spatial relationship with the Sun and the atmospheric conditions that impact the transmission of the radiation. The spatial relationship between the Sun and a location on Earth is determined by established astronomical formulas. The impact of atmospheric conditions may be estimated via proxy using pixels from satellite imagery. While satellite-based irradiance estimation has proven effective, availability of the input data can be limited and the resolution is often incapable of capturing local weather phenomena. Brief qualitative descriptions of general atmospheric conditions are widely available from internet weather services at higher granularity than satellite imagery.

Abstract: A computer implemented method of estimating solar irradiance, the method comprising: constructing a reference irradiance set of tuples; constructing a reference predictor set of tuples, merging the reference irradiance set of tuples and the reference predictor set of tuples by matching numerical identifiers for a location for which a global horizontal irradiance exists in the reference irradiance set of tuples and the timestamp with the numerical identifier for a particular location in the reference predictor set of tuples and the timestamp to provide a reference data set of tuples; and estimating the global horizontal irradiance for a specific location and a timestamp by minimizing the least squares error between the reference predictor set of tuples and the reference irradiance set of tuples to provide a set of estimated global horizontal irradiance values for a specific location and timestamp.

Abstract: An electrical unit with modular hardware structure in which more complex and unsafe portions of the device are restricted for access by a qualified electrician only, whereas safe areas are made accessible to a non-electrician user, such as a homeowner or a low expertise technician, to help diagnose issues and/or upgrade the functionality of the device without requiring the presence of a high expertise technician/electrician. The unit may include the ability to add new communication interfaces in a modular manner, preferably by a non-electrician user. Protection domains are created by designing the electrical unit to include an easier level of physical access, open to the homeowner or a low expertise technician. This area would support the modular upgrade interfaces for communication and/or diagnostic interfaces for troubleshooting. A restricted area of access may be used to shield the high voltage wiring as well as wired industrial communication interfaces from the homeowner.

Abstract: An electrical unit with modular hardware structure in which more complex and unsafe portions of the device are restricted for access by a qualified electrician only, whereas safe areas are made accessible to a non-electrician user, such as a homeowner or a low expertise technician, to help diagnose issues and/or upgrade the functionality of the device without requiring the presence of a high expertise technician/electrician. The restricted portion includes a main Printed Circuit Board (PCB) that is selectively populated with certain circuit components and that contains electrical connections to enable the electrical unit to be operated in a number of different operating configurations depending on which components are populating the main PCB. A smaller, interconnect PCB also may be provided in the restricted portion and hardware-paired with the main PCB to facilitate wiring of the main PCB via the interconnect PCB and add further modularity to the electrical interconnect scheme.

Abstract: The present invention provides methods and systems to estimate energy losses due to partial equipment failure in photovoltaic (PV) systems based on measured power and energy data, weather data, PV system configuration information, and modeled power and energy generation data.

Abstract: The present invention provides methods and systems to estimate energy losses due to soiling in photovoltaic (PV) systems from data including the measured energy and power produced over the lifetime of the system, the system size and configuration data, the weather conditions (including irradiance, precipitation, ambient and panel temperature, and wind conditions) over the lifetime of the system, and derived meteorological condition information (e.g., the history of clear-sky conditions at the location of the site).

Abstract: The present invention provides methods and systems to estimate energy losses due to shading in PV systems from data including the measured energy and power produced over the lifetime of the system, the system size and configuration data, the weather conditions (including irradiance, ambient & panel temperature, and wind conditions) over the lifetime of the system, and derived meteorological condition information (e.g., decomposed irradiance values at any time).

Abstract: A system and method in which production measurement for renewable energy is obtained in a storage-independent manner. Energy storage is separated out from the renewable generation to provide individual performance analytics in DC-coupled and AC-coupled renewable energy systems with critical and auxiliary loads. A monitoring unit uses device communication and metering to enable revenue-grade production measurement for renewable source and energy storage periodically at specified time intervals. The production measurement for the renewable source is obtained in a form that would be comparable to renewable installations without storage. Additionally, multiple energy flows may be used by the monitoring unit to arrive at a storage efficiency value that can be attributed to the storage unit and how the storage unit is operated in the renewable energy system. The storage efficiency quantifies efficiency losses arising from the use of a storage unit to estimate the actual impact of storage on energy production.

Abstract: A system and method in which information relevant to a Photovoltaic (PV) solar-site specific activity environment is displayed on the display screen of an Augmented Reality (AR) device as part of the surrounding environment, instead of on a separate computing device or an installation manual. The activity environment includes PV solar site-specific survey and feasibility analysis, installation and commissioning, Operation and Maintenance (O&M), and site overhaul/removal activities. Thus, relevant information is available to an installer/technician at their fingertips so that the installer/technician can continue the task they are involved in without losing focus. The AR device may record relevant data during site survey and note important points, accelerate installation and commissioning, make O&M more efficient, and record the complete process for ongoing improvement/management of the site.

Abstract: The present invention relates to methods and systems for identifying PV system and solar irradiance sensor orientation and tilt based on energy production, energy received, simulated energy production, estimated energy received, production skew, and energy received skew. The present invention relates to systems and methods for detecting orientation and tilt of a PV system based on energy production and simulated energy production; for detecting the orientation and tilt of a solar irradiance sensor based on solar irradiance observation and simulated solar irradiance observation; for detecting orientation of a PV system based on energy production and energy production skew; and for detecting orientation of a solar irradiance sensor based on solar irradiance observation and solar irradiance observation skew.

Abstract: An electrical unit with modular hardware structure in which more complex and unsafe portions of the device are restricted for access by a qualified electrician only, whereas safe areas are made accessible to a non-electrician user, such as a homeowner or a low expertise technician, to help diagnose issues and/or upgrade the functionality of the device without requiring the presence of a high expertise technician/electrician. The unit may include the ability to add new communication interfaces in a modular manner, preferably by a non-electrician user. Protection domains are created by designing the electrical unit to include an easier level of physical access, open to the homeowner or a low expertise technician. This area would support the modular upgrade interfaces for communication and/or diagnostic interfaces for troubleshooting. A restricted area of access may be used to shield the high voltage wiring as well as wired industrial communication interfaces from the homeowner.

Abstract: A system and method in which information relevant to a Photovoltaic (PV) solar-site specific activity environment is displayed on the display screen of an Augmented Reality (AR) device as part of the surrounding environment, instead of on a separate computing device or an installation manual. The activity environment includes PV solar site-specific survey and feasibility analysis, installation and commissioning, Operation and Maintenance (O&M), and site overhaul/removal activities. Thus, relevant information is available to an installer/technician at their fingertips so that the installer/technician can continue the task they are involved in without losing focus. The AR device may record relevant data during site survey and note important points, accelerate installation and commissioning, make O&M more efficient, and record the complete process for ongoing improvement/management of the site.