Marina Boat Slip Utility Cost Calculator

Shore power costs can add up over a boating season. Enter your typical amp draw, hours connected per day, and your marina's electricity rate to estimate your monthly shore power bill.

Estimated Monthly Shore Power Cost
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About this calculator

Estimate monthly shore power electricity costs for your boat at a marina slip based on amperage, hours connected, and local utility rates.

Frequently Asked Questions

How much power does a boat typically draw at the dock?

Depending on onboard systems like AC, battery chargers, and refrigeration, boats typically draw between 10-30 amps continuously while plugged into shore power.

Do marinas charge separately for electricity?

Many marinas include shore power in slip fees up to a limit, then charge metered rates beyond that, while others bill electricity separately from the start.

How can I reduce my shore power costs?

Using energy-efficient appliances, running climate control less frequently, and unplugging non-essential systems when not aboard can meaningfully reduce shore power costs.