Solar Load Calculator

Solar Load Calculator helps you plan a solar power system in minutes. Add the appliances you want to run, and instantly see the right inverter size, how many solar panels you need, and the battery bank required for your backup time — no guesswork, no spreadsheets.

Whether you're sizing a new solar setup for your home, shop, or office, SolarSizer turns your appliance list into a clear system estimate you can act on.

HOW IT WORKS

Add appliances and set quantities with simple + / − buttons.
Solar Load Calculator adds up your total load in watts as you go.
Instantly get your recommended inverter, number of solar panels, and battery bank.
WHAT YOU GET
• Recommended inverter — automatically picks the smallest inverter (1 kW to 10 kW) that covers your total load.
• Solar panels needed — for your chosen panel size (710, 650, 585, 450 or 310 W), at a realistic 75% panel efficiency.
• Battery bank — auto-selects the best voltage (12 / 24 / 48 / 72 V) and capacity (100–500 Ah) for your backup hours, using 80% usable capacity.
• Low Load / Full Load backup — size for essentials only (lights + fans) or everything.
• Backup time from 1 to 6 hours.

APPLIANCES COVERED (40+)
❄ Cooling — inverter & standard ACs (1–3 Ton), air coolers
🌀 Fans — ceiling, inverter, pedestal, bracket, exhaust
💡 Lights — LED, energy savers, tube lights
💻 Computers — desktop, laptop, gaming PC, server
🍽 Kitchen — fridges, deep freezers, dispensers, microwave, electric stove
🚰 Pumps — 0.5 HP to 3 HP
🔌 More — iron, TVs, electric geyser and more

EDIT ANY WATTAGE
Every appliance comes with a sensible default wattage — tap it to enter the exact value for your own equipment.

PRIVATE & OFFLINE
• Works 100% offline — no internet needed.
• No ads, no sign-up, no account.
• No data collected and no special permissions requested.
• Your selections are saved on your device only.

WHO IT'S FOR
• Homeowners planning a solar or backup power system
• Solar dealers, electricians and installers making quick estimates
• Anyone who wants to understand their power needs before buying

Note: Solar Load Calculator provides estimates for planning purposes based on standard wattage values and typical assumptions. Actual requirements may vary with your equipment, usage, sunlight and site conditions — always confirm the final design with a qualified installer before purchase.

Solar Load Calculator — plan smarter, size right.
Made by Machineries.pk