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Jharkhand Renewable Energy Development Agency

State Govt. Agency under Department of Energy

Rooftop Solar

 

Grid Connected Solar PV System (GCRT)

 

In grid connected rooftop or small SPV system, the DC power generated from SPV panel is converted to AC power using power conditioning unit and is fed to the grid either of 33 kV/11 kV three phase lines or of 415V/230V three/single phase line depending on the local technical and legal requirements.

These systems generate power during the day time which is utilized by powering captive loads and feed excess power to the grid. In case, when power generated is not sufficient, the captive loads are served by drawing power from the grid.

The concept of rooftop solar is based on the scale of the PV plant rather than the fact whether it is situated on a roof/terrace or not. Hence, the definition of RTS also includes small solar plant on the ground.

 

Type of metering arrangements:

 

1.   Net Metering


Net metering systems are primarily aimed at providing an opportunity to consumers to offset their electricity bills, wherein a single meter records both import of conventional energy from distribution grid and export of solar energy into distribution grid. Thus, net metering allows the final user to credit produced energy in the grid and is also promoted as a preferred option.

 

2.   Gross Metering


Gross metering systems are aimed at rooftop owners/third party investors who will like to sell energy to the DISCOM by using roofs owned by them or another party. It is also known as feed-in metering wherein, all the energy generated from the system is exported to the grid and is separately recorded through a different 'feed-in meter'. The developer exports the solar energy to the utility at a predetermined feed-in-tariff (FiT) approved by the regulator, and the third party investors/RESCO developers enter into a long term Power Purchase Agreement (PPA) with the utility. Only grid-connected PV systems can be gross-metered.



Jharkhand Renewable Development Agency (JREDA) has brought out a comprehensive scheme to implement the targets specified under the policy. JREDA shall conduct processes like invitation of bids/ applications for solar rooftop projects, facilitation of incentives and central financial assistance available from central and state government.



To download JSERC Net and Gross Metering Regulation along with updated PPA rate click here
http://jserc.org/pdf/regulations/47_2_2016.pdf
http://jserc.org/pdf/suomotu_03_2019.pdf

 

Phase wise Plant Capacity with District

 

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Last Updated on: 28-01-2023 16:40:13