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Wondering how big of a generator to run a house? This guide explains generator sizing through outage priorities, running watts, startup surge, battery capacity, solar generator limits, and safe home backup power planning.

Learn how to estimate generator size for house backup by listing appliances, checking starting watts, planning battery storage, and reviewing safety needs before you buy.

Power outages can last minutes, hours, or days depending on the cause and local damage. This guide explains typical outage timelines, food safety limits, generator safety, and how to plan backup power around battery capacity, power output, solar power, medical devices, and essential home loads.

Generator prices vary because “generator” can mean a portable fuel generator, a professionally installed standby system, or a battery-based solar generator. This guide compares typical 2026 costs, installation factors, safety needs, power sizing, and when a portable power station may make more sense.