System Planner | HUMMN Energy

HUMMN ENERGY CALCULATOR

A system starting point, built around your everyday life.

Step 1 of 3 · Your energy use

1. How would you like to estimate?

My JPS billQuick whole-home estimateMy appliancesBuild a list of what you useBothBill for usage, appliances for backup

Your monthly electricity use

About how much is your monthly JPS bill? (J$)Use a typical month. A bill amount gives a rough estimate because rates and charges vary.

Have your bill nearby? Make the estimate more accurate.

Monthly units used — kWh (optional)This replaces the bill-to-energy conversion. No need to know what the unit means.

Choose what you want to keep on during an outage

You can skip this for a solar-only estimate. Select the appliances that need battery backup.

Typical consumption estimates are used. Fridges and freezers cycle on and off; AC use varies with temperature, room size and settings. Add the label’s wattage when available.

2. What do you want solar to cover?

How much of your energy use?This is an energy-generation target, not a guaranteed bill reduction.When does your home use most electricity?How long should selected appliances have backup?Tick “Keep on during an outage” for each appliance you want backed up.

Optional details and assumptions

Clear roof space (m², if known)Bill conversion assumption (J$/kWh)Planning assumption, not the current JPS tariff. Use billed kWh for a better result.

Solar: 4.5 daily peak-sun hours and 80% system performance. Panels: 630 W each; roof allowance 3.5 m² each. Battery: 90% usable depth × 90% conversion efficiency. Appliance estimates have a −25% to +30% energy range; bill conversions use an indicative ±20% rate range. These are planning ranges, not statistical confidence intervals.

Your monthly electricity use

Choose what you want to keep on during an outage

2. What do you want solar to cover?

Let’s discuss your project.

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