https://www.youtube.com/watch?v=-l-UYwfx3a0
15 ENERGY EFFICIENT INVENTIONS FOR YOUR HOME
Things I liked:
Ecodrain
Solar Car port
Ridge Wind turbine
Solar Gaps – Solar powered blind
Thermo Electric generators (power bank)
Dice Cover -noise supressant for heat pumps, generators?
Rainy Rain Water filter and collector
Mini hydroelectric generator
Regen – Exercise Bike Electricity generator (develop a addon for all bikes?)