Planning Tool

Electrical Load Planner

Estimate daily electricity use by listing common loads, their wattage, runtime, and quantity. Use the result as a planning input for other tools.

Build your load estimate

Start with common small-home loads, then adjust, remove, or add items to match your project.

Changes are saved automatically in your browser.

How the estimate works

Each load is estimated with watts × hours per day × quantity ÷ 1,000 to produce daily kWh. Connected load is the sum of the listed wattage multiplied by quantity.

W × hEnergy used by each load
÷ 1,000Convert watt-hours to kWh
Σ loadsTotal daily electricity use
Important: This planner is an early-stage load estimate, not an electrical design. Connected load is not a recommendation for inverter size, breaker size, service size, wiring, or generator capacity. Verify final electrical requirements with applicable codes and a qualified professional.

Appliance wattage and runtime are estimates

Real appliances cycle on and off and may draw different power while starting, operating, or idling. Replace the starter values with measured or manufacturer-provided information when you have it.

Based on this estimate

Inverter products to research

These are planning candidates compared with the calculator's listed connected load. They are not definitive inverter-sizing recommendations.

12V standalone inverter

Renogy 3000W Pure Sine Wave Inverter

A 3000W pure sine wave inverter for 12V battery systems where a standalone DC-to-AC inverter fits the project.

Continuous output
3,000W
Peak surge
6,000W
Battery input
12V
Waveform
Pure sine wave

Best for: Smaller 12V-class systems that need up to about 3kW of continuous AC output and compatible battery-side wiring.

1 unit≈ 3,000 W continuous outputCloser output fit

48V split-phase off-grid inverter

EG4 6000XP All-In-One Off-Grid Inverter

A 6kW all-in-one off-grid inverter/charger for 48V systems with substantial solar input and expansion capability.

AC output
6,000W
PV input
8,000W
Battery system
48V
Expansion
Up to 16 units in parallel

Best for: Larger off-grid tiny homes, cabins, and small buildings where a 48V split-phase architecture fits.

1 unit≈ 6,000 W continuous outputMore capacity than the listed load

Compatibility reminder: Connected load is not the same as actual simultaneous demand or startup surge. Before choosing an inverter, verify continuous and surge requirements, battery voltage, DC current, battery and cable limits, inverter input/output specifications, transfer or charging requirements, grounding, protection, and applicable electrical-code requirements.