Solar Rooftop Power Plant BOOT/Resco Model

Solar Energy - RESCO or BOOT Model (Build Own Operate Transfer) is about pay as you save from a photovoltaic solar power project. Solex has expertise in RESCO model business and projects would be governed by a Power Purchase Agreement (PPA) for a period ranging from 10 to 20 years. In the RESCO model, the consumer need not pay any amount upfront, but needs to pay on a per unit price for power. The consumer can sublet his rooftop to a project developer and get monthly rent in the local micro utility model. A growing parity based market in India will bring many new opportunities and business models and Solex has wide experience in this new potential business area.

Solex sets up solar PV power projects at nil capital investment, utilize consumers' rooftops for fixed term period and consumers enjoy cheap, green, reliable, constant & independent power during the PPA (power purchase agreement) tenure.


  • Zero upfront cost: With PPA, you don’t need to make any upfront investment, because you are not buying a system in the first place. You are only buying energy produced by the system.
  • Lower energy cost: The energy price offered in PPA is significantly lower than the grid based energy. That means the more energy you use, the more you save.
  • Zero maintenance: We maintain the system for the period of PPA term. You are assured of uninterrupted power supply all the time.
  • Zero risk: If the system doesn’t produce energy (may be on a cloudy day), you don’t have to pay. Simple isn’t it !
  • Transfer of ownership: You have an option to own the system at the end of PPA term and prolong your energy savings.

To be updated soon

System Design
To be updated soon


Technology Solar Photovoltaic(pv)
System Design Solar Photovoltaic(pv) Grid -Connected System {Solar+Grid}
Total Roof Area Required 10000 square feet for 100 kwp
Proposed Solar Panels (PV) 260 to 325 watt | Poly Crystalline AAA Rated with Module Efficiency higher than 15.8%
Solar Inverter Tier I Multiple sting inverters,3 phase maximum output efficiency at 98%
Estimated Annual Energy Generation: 150,000 kwh in the first year for every 100KW system. (Leverage of + 10%)
Project Completion tenture Within Four (4) months

Role of SOLEX

  • We utilize vacant rooftop spaces and set up a solar PV power plant at our own cost.
  • Captive consumption: All power generated from the solar plant is fed into the LT panel and is 100% utilized.
  • Power Purchase Agreement (PPA): We sign a PPA with the rooftop owner and sell the power on a monthly cycle for a fixed term period.
  • Operation & Maintenance: We maintain the entire plant and station our team at site, at our own cost and expense for the entire term.

Financial benefits to ROOF-TOP OWNER

  • Rooftop owner enjoys cheaper power than the current power tariff & cost including the use of DG sets.
  • No worry of continuous power tariff escalation and inflation risk.
  • Buy back the project at the end of the PPA tenure at depreciated value of rupee 1 and enjoy free power for the remaining life of the system which is expected to be 30-35 years.
  • Nil capital investment required.
  • Comply with the renewable energy purchase obligations and reduce carbon footprint.