needs storage to balance generation and demand requirements effectively. The US DOE research agenda is beginning to focus grants exploring enablers for renewable energy storage. …
… “Without good ways of storing peak output for later release, alternative-energy plants become the most erratic parts …” …
Via Bloomberg: Alternative Energy Storage.
Brookings-led research team has evaluated alternative energy sources for the countries in the Gulf Cooperation Council (GCC) region and presented their findings in following paper. The region has not even begun to harness the alternative energy sources that are available. Abundant solar resources have not been harvested. And, geothermal power is practically non-existent. The Gulf States have an opportunity to chart a course to lower-carbon development. …
game-changing science is recommended to create portfolio of alternative energy projects across the pipeline of commercialization. …
… “have the government replace or imitate the venture capital and private equity investors before they lost interest and put more money into research and development of early-stage technologies.” …
Rentricity uses energy recovery techniques to get energy from " … excess pressure in water mains …" and can generate " … between 20 and 300 kilowatts of electricity…"
Somewhat similar to wave energy but not really renewable.
The power can be sent to the grid and used to offset electricity purchases.