Kauai to meet evening demand with 52MWh solar storage battery

Cross-posted from PV Tech A solar farm connected to a huge battery will be built on the Hawaiian island of Kauai to use solar in the evenings to meet peak demand, under a 20-year contract between SolarCity and an electric utility co-operative. As much as 95% of daytime demand on Kauai is met by solar at present but Kaua’I Island …

Hydropower from city water pipes

While it is difficult to predict the flow of a stream and installing dams and generating hydropower can be environmentally degrading, the consistent flow in city water pipes presents a new frontier to be explored.  City systems pump water daily at a fairly constant rate, which allows for a consistent flow of energy.  It could also help safeguard cities’ hydropower …