• How long will my solar system last?

Solar panel systems have a long lifespan. We have systems still in use that were put in place in the 1970’s. Manufacturers warrant solar panels for 25 years, though they have been known to perform for in excess of 45 years. Inverters typically last for about 15-20 years.

  • Are all solar panels the same?

    Aside from the aesthetic differences in solar panels, quality makes a difference. Solar Technologies offer the most efficient solar panels in the world, generating up to 50% more power than conventional panels, with less degradation from heat. This means more savings using less space at lower costs.

  • What is the difference between module efficiency and plant PLF?

Efficiency of the module represents the amount of solar energy produced by the module when sunlight falls on defined area. Its largely quantified by the quality of characteristics of material use in module. While the Plant Load Factor is characteristic feature of the power produced by large scale power plants and is quantified by the availability of source of energy. In case of solar, on an average sunlight is available for 8 hours a day and the PLF ranges between 16-20% with a simple crystalline PV technology.

  •  Can I use solar power for my home?

Solar systems can be used to fulfil even smallest capacity power requirements because of the flexible sizes in which solar photovoltaic panels are available these days. Since a household system is typically an off-grid, one can avail the capital subsidy benefits of a MNRE scheme also. This reduces the capital cost of the system straight away by 30% along with the tax saving benefit in form of 80% accelerated depreciation.

  • What is the process of getting RECs?

RECs can be availed by any project meeting the eligibility criteria specified by Central Electricity Regulatory Authority (CERC) by following the below mentioned steps:

  • Accrediatition by State Agency
  • Registration by Central Agency
  • Issuance of REC by Central Agency
  • Redemption of RECs


  • What is Grid Parity?

    When the levelled cost of power production from an alternative source of energy like solar becomes equal to or more than the power supplied from the grid, the energy source is considered to reach grid parity. Today solar is on its way to reach grid parity. The kind of fall observed in prices of photovoltaic module recently clearly suggests the lowering of capital cost investment in this sector, thereby reducing the capital cost of project.

  • What makes a solar power project bankable?

    Following areas specify the proven bankability of solar projects in India:

    • Feasibility of technology in terms of presence on practical grounds, capital cost and associated R & D
    • Highly experienced EPC players
    • Politically and industrially backed solar policies offering attractive tariffs
    • Credible weather data availability
    • Assurance from concerned bodies for abiding by the rules of PPAs signed
  • What is the procedure to claim solar subsidy?

    For claiming subsidy under “MNRE off-grid and other application scheme”, two sets of complete and duly signed application forms need to be submitted to State Renewable Nodal Agency. From State level, the application will be proceeded to central level for final approval from PAC (Project Approval Committee). The application forms are available for download at official website of MNRE. Before this, the project proponent needs to appoint a consultant for proper pre-feasibility study of the proposed project. The findings of this study are required at various stages of application form filling.

    Once the project gets approval, the subsidy can be claimed through a nationalised and designated agency, which acts as central or state level official body for managing funds granted under this scheme.

  • Which all solar projects can avail benefit of 80% accelerated depreciation?

    Following are the type of solar systems falling under the category of availing 80% accelerated depreciation benefits:

    • Grid connected solar power plants having PPAs where this clause is especially mentioned as in the case of Gujarat Solar Policy
    • Grid connected solar power plants who have signed PPAs with NVVN with special discretion of availing this benefit which further leads to drop in the preferential tariff
    • Solar systems used for captive consumption
    • Solar off-grid systems with battery back-up.