All attics have ventilation of some kind, those spinning turbines, vents or something else.

I wish a jet  try 3 million and up for a JEt or turbine mine is a just a little bug smasher.. albeit a nice one  !!

I like their turbine single.. but lots of wrecks in those babys.. 

Totally Off grid with micro hydro,48v dc to Pure sine wave inverter(5500 watts) New Trojan Batteries (Renewable energy) Have two springs one is for drinking water and other is for water turbine.(90 gallons per minute and 175 foot of head/drop in elevation) still a project in progress as we have plans to convert into a functional micro farm with greenhouses etc producing all natural Non GMO vegetables that are ORGANIC.

Totally Off grid with micro hydro,48v dc to Pure sine wave inverter(5500 watts) New Trojan Batteries (Renewable energy) Have two springs one for drinking water and other is for water turbine.(90 gallons per minute and 175 foot of head/drop in elevation) still in progress as we have plans to convert into a functional micro farm with greenhouses all natural Non GMO vegetables that are ORGANIC.Breaking ground on year round heated greenhouse this summer.2019 What made you interested in investing in this type of deal?

No, their strategy was : buy, install a giant water turbine under the house, connect the whole thing to the grid and produce electricity to 150+ households nearby.

Other new technology has also opened some opportunities....drilling deeper and sideways...3D seismic maps and all other kinds of inventions.I get this part I sold a lot of land in my early days in Northern CA  between Sonoma and Lake county lies the mayacama mtn range and its full of hydro  you know drill down hit steam and then release steam and turn the turbines.. and a lot of it was slant drilling so yes you could see the steam plan 2 miles away but still have a chance at mineral rights income..   

Newsom praised the plans and estimated it would be built at least 20 miles offshore with enough space for roughly 380 wind turbines.

Wind turbine / Solar rent (cons: not enough knowledge, do I need to buy all the equipment and sell energy back to the grid, or do companies rent the land and put their own equipment up?)

Would it be worth adding solar panels and wind turbines to my flips?