Kerala-based EPC installer Maxwatt Solar has installed a 36.72 kWp rooftop solar system for a homeowner in Kerala, which it claims to be India’s largest on-grid residential solar system using 540Wp modules. The project is located at Anchukallumoodu in the Kollam district of Kerala.
The installation uses 68 numbers of JA Solar 540 Wp half-cell mono PERC modules, supplied by Redington Solar, one of the largest solar PV distribution companies in India. Besides, it uses three-phase 27 kW Fronius inverter (model ECO 27.0-3-S)
The system is an on-grid solar PV system without any battery backup.
“It is designed not to run any specific house load but it is sufficient enough to run even the centralized AC unit of this house. So, in a nutshell, we could say that irrespective of the connected load, this solar system could run any house load connected to it and the electricity generation is more than enough to offset the customer’s monthly electricity bill,” Prabi Prasad, technical director at Maxwatt Solar, told pv magazine.
“Technically speaking, 1 kWp could easily generate 4 units of electrical energy (kWh) per day. Therefore, 36.72 kWp could generate 146.88 kWh daily but based on our experience with previous systems, you can consider 4.5 kWh instead of 4 kWh. Then it will be 165.24 kWh daily, or 60,312.60 kWh annually.”
“The daily electricity consumption of our customer’s house is 40 kWh (based on their monthly electricity bill). So the daily electricity generation of 165.24 kWh/day by the solar system will be four times their daily requirement. In this case, the customer will be able to feed this extra 120 kWh/day to the State discom Kerala State Electricity Board Ltd (KSEB), which is a win-win situation for both parties.”
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