What is the best portable generator?

How much does a backup generator cost?

Cost to install a backup generator varies greatly by region (and even by zip code). Get free estimates from electricians in your city. The average cost of installling a backup generator is $4,000.

The PMG (Permanent Magnet Generator) is a system which is used for secondary exciting. The PMG provides stable and reliable electric energy for AVR regardless the generator's terminal voltage. The generator with PMG excitation system can provide 300% rated current during short-circuit, which occurs for 5-10 seconds.