Workers install rooftop solar panels. The on-grid power projects are for the purpose of selling electricity to the state grid, while the others are aimed at self-generated power by properties. But the country's power policy has yet to deregulate laws for renewable power operators, and most renewable resources require investment in large-scale sites. "We also offer zero-investment installation of solar systems with a lower solar electricity cost, including free maintenance and equipment throughout the contract period of 20-25 years." "The power storage is more stable than the conventional grid, both in distribution and connection systems," Mr Chawalit said.

Source: Bangkok Post June 30, 2019 22:52 UTC