Navodaya Vidyalaya Samiti will be very soon using rooftop solar plants on its buildings across India. The total capacity will be 18.78 MW. Azure Power, a leading solar developer will install 11.35 MW of this capacity. The plants will be set up under Resco or Zero-Investment model and qualify for capital incentives. The tariffs range between INR 2-4.975 per unit.
Since these projects are eligible for capital incentive these tariffs do not reflect the true cost of solar energy. North-Eastern states, Himachal Pradesh, Lakshadweep & Andaman & Nicobar islands are heavily incentivised states/UTs. They enjoy a capital subsidy of 70% for installation of rooftop solar. plant. For other states, it is 30%. The varying degree of solar energy radiation in each of these states is also responsible for variations in tariff. States receiving strong solar radiation may see lower cost of energy generated from rooftop solar plants. The vice-versa is also true. However, these observations do not conform with the tariff results in the graph. Thanks to the capital incentives!
States like Himachal Pradesh & Assam where solar radiation is less but the tariffs are as low as INR 2 or 2.75. In comparison, states like Rajasthan or Telangana where the solar radiation is very strong the tariff is more than INR 3. Bihar and Jharkhand record highest tariff for rooftop solar installation. In three states- Bihar, Jharkhand & Odisha- the JNVs were not allowed to accept the bid. Apparently, the tariffs are too high in these states.
Azure Power has won 11.35 MW of the total rooftop solar capacity. It has won the weighted average levelized tariff at INR 4.97 per unit.