Part 5/8:
Wind power, with its robust design that negates the need for constant maintenance, offers a longer lifespan. Historical data reveals instances of wind turbines powering homes for over a decade without any servicing. Modern turbines are designed to last three years or more. Nevertheless, they will succumb to mechanical failures over time, primarily due to gear box issues.
Hydro Plants
Hydroelectric facilities, such as the Hoover Dam, could run autonomously for years. They have systems designed for long-term operation, but without external electrical grids, their power would be rendered useless, likely leading to mechanical failures over time.