For special categories states viz. NE, Sikkim, J&K, Himachal Pradesh and Uttarakhand, remote and difficult areas such as Lakshadweep, Andaman & Nicobar Islands, and districts on India’s international borders the CFA is limited to 60% of the cost of the water heating systems and 90% of the benchmark cost for SPV power projects accessed by only State Nodal Agencies(SNAs) / Solar Energy Corporation of India (SECI) .
The benchmark cost set by the Ministry ranges from Rs 100 /Wp to Rs 450/Wp depending upon the size of the SPV system and Rs.8500 to Rs 11000 per sq. meter of the collector area based on the type of the collectors.
A total of 10,847 numbers of standalone and decentralized solar PV power plants aggregating to 22.85 MWp capacities have been installed on Central and State Government Buildings in the country till 31st December, 2013.
In Government offices/ buildings located in rural areas, where electricity is not available continuously and diesel generators have to be used, solar systems can save substantial amount of diesel.
This information was given by the Minister of New and Renewable Energy Dr. Farooq Abdullah in a written reply in the Lok Sabha on 21st February, 2014.