A grid-tied solar power system (also referred to as grid-integrated, or on-grid or utility-interactive) produces solar power that is fed to the load interactively with the utility grid – hence the term grid-tied, as the system is tied, literally, to…
Grid Parity – Definition, Glossary, Details – Solar Mango
Grid parity for solar PV refers to a point where its cost can compete with that of conventional grid power without the consideration of any external incentives. Various analyses of the economics of solar PV versus grid power have inferred…
Flat-plate Photovoltaics – Definition, Glossary, Details – Solar Mango
Flat-plate photovoltaics is a PV array or module that consists of flat solar panels. Flat-plate arrays and modules use direct and diffuse sunlight, but if the array is fixed in position, some portion of the direct sunlight is lost because…
Energy Payback Time – Definition, Glossary, Details – Solar Mango
The time required for any energy producing system or device to produce as much energy as was required in its manufacture. For solar electric panels, this is normally 6 to 36 months.
DCDB (DC Distribution Board) – Definition, Glossary, Details – Solar Mango
A distribution board (also known as panel board or breaker panel) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit. The solar power generated is fed to the DCDB.
Dual Axis Trackers – Definition, Glossary, Details – Solar Mango
While the single axis trackers are used to track the sun as it moves from east to west, dual axis trackers also track the north to south movement of the sun across different seasons.
Downtime – Definition, Glossary, Details – Solar Mango
Time when the PV system cannot provide power to the load, expressed either in hours per year or as a percentage. Downtime may be due to technical failure of the solar plant or maintenance of the solar plant.
DNI (Direct Normal Irradiance) – Definition, Glossary, Details – Solar Mango
DNI (Direct Normal Irradiance) at a location is the amount of solar energy falling per square metre per day at that location. The higher the DNI, the higher the electricity produced by a solar cell. DNI is usually measured by…
Direct Current – Definition, Glossary, Details – Solar Mango
The solar panel converts photons (particles of sunlight) into electrons of Direct Current (DC) electricity. Solar power inverters take the Direct Current (DC) that the solar panel generates and convert it to Alternating Current (AC) that is delivered to the…
De-rating – Definition, Glossary, Details – Solar Mango
A solar power plant that has 10 MW of solar modules rarely produces that much power. There are many steps in processing the power (efficiency losses in the inverter, cables, and other components), and they eat up about 10-15% of…