Below are the best-selling standby models, grouped by fuel type. It provides 22,000 watts of power – enough for an entire medium-to-large home. It runs on natural gas or. We've done the work for you by ranking dozens of backup or standby generators based on factors like pricing, warranty, noise level, energy output, load management and high-temperature shutdown. We developed our list of the best backup. The generator sales market is evolving rapidly as industries, institutions, and households seek reliable backup and prime power solutions. These products represent what downstream customers are actively purchasing. The data reveals a clear preference for solar-powered portable power stations and. Market Size & Growth: The global generator sales market was valued at USD 35. 9 billion by 2035, with a CAGR of 5. With both gasoline and propane options, it delivers impressive power—up to 9500 watts peak on gas and 8550 watts on LPG—making it suitable for both home backup and job site use.