India has been actively promoting net metering to encourage the adoption of renewable energy. The Ministry of New and Renewable Energy (MNRE) has issued guidelines to standardize net metering policies across states. However, implementation details can vary:
* Capacity limits: Individual states have set their own limits within this framework. For example, Uttar Pradesh and Jharkhand permit net metering for systems up to 2 MW, while Karnataka, Assam, Kerala, Andhra Pradesh, Rajasthan, Gujarat, and Telangana have set the limit at 1 MW. Other states, such as Bihar, Odisha, Punjab, Haryana, Madhya Pradesh, Goa, have a cap of 500 kW. Tamil Nadu and West Bengal offer net billing up to 1 MW or the sanctioned load, whichever is lesser.
* Settlement periods: The duration for which surplus energy credits can be carried forward differs among states. For example, in Delhi, the settlement period is from April to March, aligning with the financial year. In Kerala, the settlement period is also from April to March, with any excess energy at the end of the period treated as lapsed.
* Incentives: Certain states in India offer additional incentives to promote solar installations. For example, Maharashtra, Gujarat, and Punjab provide subsidies under the MNRE’s rooftop solar scheme, covering 40% of the cost for systems up to 3 kW and 20% for systems between 3–10 kW. Rajasthan offers a 20–30% state subsidy for residential solar systems, while Telangana processes incentive payments within 30 days of claim submission.