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AIColorado Solarby Discovery Clean Energy

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Battery Sizing Worksheet

Size a home battery for Colorado outages and time-of-use: essential loads, motor starts, backup hours, and how Powerwall 3, Enphase and SigEnergy compare.

8 items4 sectionsPrintable

What’s inside

Step 1 — List what must stay on

2 items

Step 2 — Check power, not just energy

2 items

Step 3 — Pick a backup target

2 items

Step 4 — Price it

2 items

Get the Battery Sizing Worksheet

Work out how much battery you actually need — for wildfire shutoffs, well pumps, medical equipment or Xcel’s 5–9 pm peak — before anyone quotes you.

Get honest numbers for your roof

Our Colorado crew looks up your utility’s current rules, models your roof, and tells you straight — including when solar or a battery won’t pay off.

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