Developer will install operate and maintain the solar plants set up on customer s rooftop investor will charge on a per unit kwh basis only for the electricity produced by solar we have the experience of opex model in the usa and execute this model like no one else.
Opex model solar rooftop.
As of march 31 2019 opex model based projects hold more than 37 share of cumulative onsite solar installations in india.
Under the opex model a renewable energy service company resco invests builds and maintains a rooftop onsite solar plant.
B opex model pay per unit with power purchase agreement in opex model operation expenditure will be yours system instillation company will install the complete system at their own cost on your rooftop through a 10 25 year power purchase agreement ppa between you and installation company.
This opex model is famous in many countries including us where half of rooftop solar pv installations are owned by opex developers.
In this model the consumer purchases the solar system by making 100 of the payment upfront or financing the system often through a bank.
It is successful model internationally and remains so in india also as the consumer has not to incur upfront capital costs.