Solar panels on residential or commercial buildings
Solar panels, even wind turbines, could be installed on commercial or housing premises. They could alleviate the demand for electricity from power plants.
A few downsides:
-Solar panel can help, but their peak around noon doesn’t coincide with the consumption peak of the late afternoon and evening.
-Smart meters are required (i.e., with pricing of inbound and outbound electricity flows) to resell electricity to the grid, if allowed by the power distribution company that maintains the grid.
-The investment in solar panels would not be paid back before up to 15 years. The cost of solar panels may go down, but the installation cost may not follow, unless subsidies or tax breaks.
-Renters will not install solar panels on a roof that they don’t own it.
-Apartment owners will have to share the installation on the top roof.