Blogs
FirstGreen Solar Academy
Key aspects for a PPA business model for rooftop solar system
More recently, solar PPAs have been observed in the market for SHSs, where developers take care of design, permitting, financing, installation and operation of an SHS at the customer’s rooftop or nearby plot, at little or even no cost for Read more…
FirstGreen Solar Academy
How to rooftop solar system Protect against theft
Residential systems could be targets for theft. The solar PV modules themselves are the prime target, followed by copper, for example in the cables. Various theft protection measures are available on the market.A simple measure is to use custom-locking fasteners Read more…
FirstGreen Solar Academy
Consideration under Safe and reliable operation of rooftop solar system
The basis for safe and reliable operation is proper planning and installation of the solar PV system. The system developer and installer should possess in-depth knowledge of the applicable (IEC) standardsFor roof-mounted PV installations, all safety precautions for working on Read more…
Design Engineering
Impacts of system design on system performance
Power generation, plant performance and, hence, project cash flow do not depend only on the chosen equipment. The main factors discussed in this section are:» system design: loss parameters, DC-to-AC ratio, monitoring and control system» maintenance: response times, scope of Read more…
Design Engineering
Monitoring parameter for solar rooftop system
Depending on utility metering, the electricity bill shows how much electricity the owner obtains from the grid and how much electricity the solar system delivers to the grid. There is no detailed information about energy production of the solar PV Read more…
FirstGreen Solar Academy
Different type of monitoring technology used in Rooftop solar system
Either reference cells or pyranometers are used for solar irradiation measurements. Under irradiation, reference cells generate specific voltages at specific irradiation levels and temperature. A data logger records the voltages that are calibrated under the reference spectrum at STC according Read more…
FirstGreen Solar Academy
Metering technology used in Rooftop solar system
In general there are two types of meters: the export or sell meter, which measures the electricity fed into the grid, and the import or purchase meter, which measures the electricity drawn from the grid.In the case of net metering, Read more…