Questions and answers

Frequently Asked Questions

Common questions about commercial backup generators and standby power systems, costs, contracts, maintenance and calculator limitations.

How much does a commercial standby generator cost?

The complete project can range from tens of thousands to much more depending on load, transfer equipment, fuel, electrical work, site construction and approvals.

Can this site size a generator?

No. Capacity, motor starting, fault duty, code-required loads, fuel and switching require qualified engineering and contractor review.

Are portable generators safe indoors?

No. Combustion-generator exhaust can contain deadly carbon monoxide. Follow official safety guidance and never operate a portable generator indoors or in partly enclosed spaces.

What recurring costs should be budgeted?

Maintenance, exercise, testing, fluids, batteries, fuel management, monitoring, repairs, permits and eventual replacement may all apply.

Is diesel always more reliable than natural gas?

No universal answer applies. Fuel reliability depends on the local utility, storage, delivery, runtime objective, hazards and operating plan.

Do calculator inputs leave my browser?

The calculators run locally in the browser and do not intentionally submit project inputs to the server.