Backup Power Cost Calculator

Calculate the total expected cost for maintaining backup power over a month or year.

Enter Values

Avg Outage Hours per Month

Fuel/Direct Cost per Hour ($)

Equip. Wear/Replacement ($/month)

Enter values above and click Calculate to see your result.

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Cost = (Outage Hours × Generator Cost/hr) + Battery Replacement Amortized

Combines the direct fuel costs during outages with the hidden costs of equipment replacement over time.

If outages total 20 hours a month and your per-hour backup cost is $2, your monthly backup expense is $40.

Reliable power during outages has both obvious and hidden costs.

Fuel is the obvious cost; wear and tear is the hidden one.
Frequent outages significantly increase the total cost of ownership of backup gear.
Calculating this helps decide if solar is a better investment than a generator.

Always factor in equipment replacement when budgeting for backup power.

The purchase price of your generator or batteries divided by their expected lifespan in months.

You can include it in the equipment amortized field if applicable.

AI Assistant

Ask about this calculator

I can help you understand the backup power cost calculator formula, interpret your results, and answer follow-up questions.

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Extra cost after fuel price hike.

Petrol vs diesel comparison.

Fuel surcharge per delivery.

Multi-vehicle fuel budget.

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