20 links have been added on 6 ideas about #renewableenergy.
  1. You could also store energy in the water!
    https://www.dw.com/en/swiss-water-battery-boosts-europes-energy-storage-plans/a-63923662

  2. Underground energy storage balloons are the solution to ending environmental pollution by lithium batteries.
    https://www.sauder.ubc.ca/news/using-underwater-balloons-store-energy

  3. Ocean and sea waves have so much potential energy, which can eliminate the need for nuclear and fossil fuel energy.
    https://news.climate.columbia.edu/2017/02/14/tapping-into-ocean-power/

  4. These wireless, solar-powered CCTV cameras from Amazon are an excellent choice for home security systems.

  5. Yes, it is quite possible. Urine contains organic matter, which can be converted into energy. Better yet, the process kills pathogens in the urine water, sanitizing it.
    https://www.sciencealert.com/tech-that-turns-urine-into-electricity-can-also-kill-pathogens-in-wastewater

  6. You can produce electricity from tap water using this micro hydroelectric turbine.

  7. Here’s a solar skylight that lets in natural light while also generating electricity https://www.onyxsolar.com/product-services/photovoltaic-glass-solutions/pv-skylight