It is incorrect to say that the tariff structure as far as solar power is concerned is not remunerative (“Green energy target tough, say officials”, May 22). A standalone rooftop solar plant of 3kW installed even five years ago will fetch a decent return of 6-8%; this return is also tax free.
The reasons that officials have cited for rooftop installations not getting traction such as a terrace “being used to dry clothes and host parties” are gross exaggerations. Elevated solar installations are possible without blocking terrace space. A major reason for the net metering scheme not taking off is the non-availability of two-way meters. Local electricity departments lack knowledge and awareness of solar installations. The staff are also not enthusiastic or motivated enough to explore solar options. As far as subsidies are concerned, it is relatively easier to get them in Andhra Pradesh, Telangana and Gujarat when compared to Tamil Nadu. A 1 kW on grid costs about ₹65,000 to ₹70,000 in these States as against ₹80,000 to ₹90,000 in Tamil Nadu. A 30 kW rooftop unit installed recently in a residence in Hyderabad cost ₹ 16,00,000 under the net metering scheme. The first month’s savings worked out to be ₹40,000; the pay back period is about 3.5 years.
D. Suresh,
Chennai
