6 KWp Grid-Connected Solar Power Plant At A Government School

Location: Khanyan, Hooghly, West Bengal
Capacity: 6kWp
Department: Government School
Purpose: To Reduce Electricity Bill

Overview – 6 kWp On-Grid Solar Power Plant

Upon inspecting the site, which is a government school in Khanyan, Hooghly, it was concluded that there was sufficient roof space to install a 6kWp On-Grid Solar Power Plant to meet their energy requirement. The 6kWp On-Grid Solar Power Plant is grid-connected with the facility of net metering. This means that the solar panels gather the sun’s energy as DC energy and convert it into 240V AC electricity, which can then be used by the school. If a grid-connected system produces more power than the home consumes, the surplus is fed into the power grid, and due to net-metering, the customers are only billed for their “net” energy use.


Technical Details

The 6kWp On-Grid Solar Rooftop Power Plant uses 20 units of 72 cells made up of polycrystalline with 300p solar modules. It is a grid-connected system using an inverter of SMA Zever. Since the structure is fitted on a rooftop, Sunshell made sure to protect it against environmental conditions. The whole structure was made sure to be weather protected. GI structure made from hot steel galvanization of 85micron thickness.

To avoid any accidents, Sunshell powers equipped the plant with AJB (SPD type II 1000V 40kA) on PV string fuse (1000v 15A). Any high voltage mishaps can also be avoided due to the presence of ACDB with AC side SPD, proper indication LEDs, and suitable MCB with termination at LT side 415V. For further protection, lightning arrestors with dedicated earthing and proper earthing protection in compliance with IS 3043 were also included.


The advantages of this solar rooftop are quite a few. The power is generated during the vacation periods in schools which is used for other purposes at that time. The money saved from the pricey electricity bills is utilized for the welfare of the students. An awareness about global warming rises between the students, which proves to be beneficial to the entire village too.


Technical Features

  • Solar Modules: 72 cells polycrystalline 300Wp solar module x20 Nos
  • Solar Grid-connected inverter: 6 kWp Solar Inverter – SMA Zever
  • Structure: Weather Protected GI Structure with 85micron galvanization thickness
  • AJB: Yes, with SPD Type II 1000V 40kA, PV string fuse 1000V 15A
  • ACDB: Yes with AC side SPD, Indication LED, and Suitable size MCB with
  • Termination: At LT side 415V
  • Lightning arrestor: Yes, with dedicated earthing
  • Earthing protection: yes, complied with IS 3043
You might also like
3rd Mar, 2022
Flora Fountain 81 KWp On-grid Rooftop Solar Power Plant
The main purpose for installing this project is to reduce the common area electricity bill, like Common area Lighting, Community Hall, Lift, Surveillance System, Sewage Treatment Plant(STP), Parking area, UnderPass Lighting, Communication Tower, Garden, etc. We have used a Longi solar Mono parc Half Cut Solar PV module, each 450 Wp x 180. The inverter is Solis 40 KW x 2 MPT base. Lightning Arrestors are installed at suitable locations and well calculated and perfectly positioned to protect the system against any lightning strikes. Dedicated parallel-connected earth pits are provided for the LAs to maintain the lowest earth resistance.
View More...
3rd Mar, 2022
Alcove New Kolkata 189KWp On-Grid Rooftop Solar Power Plant
Alcove, a project by Alcove Realty, located in Serampore, Hoogly had installed 31.5 KWp solar rooftop power plants on six towers. The solar panels are grid-connected and equipped with an Optimizer to improve performance in the situation of a changing shadow. This is a high-tech product that is often seen in Western countries.
View More...
27th May, 2021
North Bengal University – 225kWp On-Grid Solar Rooftop Power Plant
In the present time, the world is adapting renewable solar energy at a rapid rate. India is also emerging in this global arena as the second-largest country in terms of solar energy generation globally. In its efforts to move further towards sustainable energy, the Indian Government has set a target to achieve 175 GW of installed capacity of renewable solar power by the end of the year 2022.
View More...