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Energy 101
How Many Watts Does an AC Use? Central, Window & Portable (2026)
A central AC uses 3,000–5,000 watts, a window unit 500–1,500. See portable AC and BTU-by-BTU wattage, plus how to calculate your own cost.
Energy 101
How many watts does a refrigerator use? (Watts, kWh & Cost)
A refrigerator uses 300-800 watts on average, but only 100-400 running watts once you factor in compressor cycling. See the formulas, plus what that costs per month.
Energy 101
How do solar panels work with your electric bill?
See exactly how solar panels change your electric bill — net metering credits, what stays on your bill, and how much you could save each month.
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