Permanent magnet generators produce electricity by rotating strong magnets around metal wires. These conductive wires then convey the electricity throughout a residence or industrial complex for decades, because the magnets do not have to be replaced for up to 25 years.
Because permanent magnets do not require a battery pack, they benefit people who live far from conventional power grids. The simplicity in design also benefits city dwellers, because the magnets do not need maintenance. This same construction makes permanent magnets durable in extreme weather. They also have a small carbon footprint, because they do not require hydrocarbons for their operation, nor do they contribute much waste to the environment.