TPDDL to generate 400MW of rooftop solar in Delhi by 2022

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Tata Power Delhi Distribution Limited (TPDDL) plans to generate 400MW of rooftop solar energy in Delhi by 2022.

TPDDL could support more than 400MW of energy generation mainly through commercial and industrial consumers in North and North West Delhi, according to a study by US energy consulting firm Energy and Environmental Economics.

Praveer Sinha, managing director at TPDDL, told PV Tech that the company typically is looking at commercial and industrial consumers because they are on a net tariff basis, which allows them to regain the cost of installing the solar panels.

Sinha said TPDDL works on two models. In the first, consumers invest, while the company performs the supervision of erection, commissioning and interconnectivity. In the second, TPDDL raises finance for the consumer and charges them a monthly EMI. Once the capital cost is repaid over a period of four to five years, ownership is transferred to the consumer.

Electricity generated can be for consumer use or exported to the grid.

When asked about problems with smog and pollution for solar generation in Delhi, Sinha said: “I don’t think that is such a big issue. It may be having a little bit of impact – that is why one needs to clean up the panels. It will still be very effective.”

Sinha claimed this is the first large rooftop initiative by any utility in the country.

TPDDL already has a 1.7MW installation on its own office buildings.

Sinha added: “I hope this will be a good beginning for rooftop solar for various cities in the country.”

In a decade, Delhi’s consumer base and peak power demand has nearly doubled. Its peak power requirement has recently seen annual increases of up to 8-10%.

Various studies suggest a peak load requirement of up to 2400MW in TPDDL’s distribution area of North and North West Delhi by 2022. The company said this will continue to create an imbalance between peak demand and off-peak demand especially between summer and winter months. 

TPDDL commissioned the study by Energy and Environmental Economics, with a US$459,000 grant from the United States Trade and Development Agency (USTDA) in June 2014.

The study focused on exploring feasibility of various Distributed Energy Resources technologies in the form of rooftop solar, demand response and storage solutions as a part of the roadmap for TPDDL’s grid integrated rooftop solar PV and demand response projects. 

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