HOME/APPLIANCE SOLAR SIZING

How Much Solar Does Your Appliance Need?

A 180-appliance planning database with transparent running watts, surge watts, hours, duty cycle, daily watt-hours, and 40 demand-led DIY sizing pages.

Updated August 18, 2026180 typical ranges — verify your unit

Start with the daily watt-hours

Running watts decide the instantaneous load; hours and duty cycle decide the energy the solar array must replace. Startup surge decides whether the inverter can start a compressor, motor, or power supply. This database keeps those three questions separate.

Every row is a planning range, not a product specification. Verify the exact unit's EnergyGuide, nameplate, manual, operating mode, and measured watt-hours before buying equipment.

High-demand sizing walkthroughs

The 40 detailed pages were selected by a reproducible score from the supplied Bing query corpus and autocomplete research. The existing refrigerator guide remains canonical and is linked instead of duplicated.

Try a passing appliance-scale diagram

Start with the refrigerator-scale preset, then replace its panel, battery, inverter, and run-length inputs with the values from your appliance label and site.

Browse all 180 appliance loads

Refrigeration

ApplianceRunningSurgeTypical daily loadDutyNext step
Refrigerator150 W1,200 W1,188 Wh33%Detailed sizing
Mini Fridge85 W500 W714 Wh35%Detailed sizing
Chest Freezer120 W900 W864 Wh30%Detailed sizing
Upright Freezer180 W1,200 W1,512 Wh35%Detailed sizing
RV Refrigerator180 W900 W1,512 Wh35%Detailed sizing
12V Refrigerator55 W100 W528 Wh40%Detailed sizing
Portable Fridge Freezer60 W120 W576 Wh40%Detailed sizing
Wine Cooler100 W550 W840 Wh35%Custom load
Beverage Cooler120 W650 W1,008 Wh35%Custom load
Ice Maker250 W700 W450 Wh60%Detailed sizing
Commercial Refrigerator550 W2,200 W5,940 Wh45%Custom load
Commercial Freezer700 W2,800 W7,560 Wh45%Custom load
Medical Refrigerator180 W1,000 W1,512 Wh35%Custom load
Ice Cream Freezer350 W1,800 W3,780 Wh45%Custom load
Walk-In Cooler1,800 W6,500 W19,440 Wh45%Custom load

Kitchen

ApplianceRunningSurgeTypical daily loadDutyNext step
Microwave1,200 W1,800 W300 Wh100%Detailed sizing
Air Fryer1,500 W1,700 W750 Wh100%Custom load
Toaster900 W1,000 W108 Wh100%Custom load
Toaster Oven1,400 W1,600 W525 Wh75%Custom load
Countertop Oven1,600 W1,800 W720 Wh75%Custom load
Electric Kettle1,500 W1,650 W225 Wh100%Detailed sizing
Drip Coffee Maker1,000 W1,200 W300 Wh75%Detailed sizing
Espresso Machine1,400 W1,700 W245 Wh70%Custom load
Coffee Grinder180 W300 W9 Wh100%Custom load
Blender700 W1,200 W56 Wh100%Custom load
Food Processor650 W1,100 W65 Wh100%Custom load
Stand Mixer500 W900 W100 Wh100%Custom load
Hand Mixer250 W400 W38 Wh100%Custom load
Rice Cooker700 W850 W394 Wh75%Custom load
Slow Cooker250 W300 W1,300 Wh65%Custom load
Electric Pressure Cooker1,000 W1,200 W520 Wh65%Custom load
Induction Cooktop1,800 W2,200 W1,260 Wh70%Custom load
Electric Hot Plate1,500 W1,700 W844 Wh75%Custom load
Electric Skillet1,300 W1,500 W585 Wh75%Custom load
Waffle Maker1,000 W1,200 W188 Wh75%Custom load
Sandwich Press1,200 W1,400 W192 Wh80%Custom load
Bread Maker650 W850 W780 Wh40%Custom load
Food Dehydrator600 W700 W3,360 Wh70%Custom load
Sous Vide Cooker900 W1,100 W1,620 Wh45%Custom load
Dishwasher1,400 W1,800 W1,155 Wh55%Custom load
Garbage Disposal750 W1,800 W60 Wh100%Custom load
Range Hood180 W350 W117 Wh65%Custom load
Electric Oven2,800 W3,400 W1,960 Wh70%Detailed sizing
Electric Range5,000 W8,000 W3,300 Wh55%Custom load
Electric Grill1,700 W1,900 W1,020 Wh80%Custom load
Pellet Grill300 W700 W660 Wh55%Custom load
Popcorn Maker1,200 W1,400 W120 Wh100%Custom load
Juicer700 W1,200 W70 Wh100%Custom load
Ice Cream Maker250 W600 W141 Wh75%Custom load
Water Dispenser500 W800 W1,200 Wh10%Custom load

Laundry & Cleaning

ApplianceRunningSurgeTypical daily loadDutyNext step
Washing Machine700 W2,200 W455 Wh65%Custom load
Compact Washing Machine450 W1,300 W234 Wh65%Custom load
Clothes Dryer5,000 W6,500 W3,750 Wh75%Custom load
Heat Pump Dryer900 W1,800 W945 Wh70%Custom load
Spin Dryer300 W900 W75 Wh100%Custom load
Vacuum Cleaner1,000 W1,800 W350 Wh100%Custom load
Shop Vacuum1,200 W2,400 W600 Wh100%Custom load
Robot Vacuum45 W90 W59 Wh65%Custom load
Carpet Cleaner1,100 W2,000 W550 Wh100%Custom load
Steam Cleaner1,500 W1,700 W480 Wh80%Custom load
Clothes Iron1,400 W1,600 W263 Wh75%Custom load
Garment Steamer1,300 W1,500 W260 Wh80%Custom load
Sewing Machine100 W250 W130 Wh65%Custom load
Serger120 W300 W156 Wh65%Custom load
Ultrasonic Cleaner300 W450 W113 Wh75%Custom load
Pressure Washer1,800 W4,000 W1,350 Wh100%Custom load
Electric Broom500 W900 W150 Wh100%Custom load
Boot Dryer80 W100 W320 Wh100%Custom load

Heating & Cooling

ApplianceRunningSurgeTypical daily loadDutyNext step
Window Air Conditioner750 W2,200 W3,900 Wh65%Detailed sizing
Portable Air Conditioner1,200 W3,000 W6,720 Wh70%Detailed sizing
Mini Split Air Conditioner1,100 W2,500 W4,840 Wh55%Detailed sizing
RV Air Conditioner1,500 W4,000 W5,850 Wh65%Detailed sizing
Central Air Conditioner3,500 W9,000 W16,800 Wh60%Detailed sizing
Evaporative Cooler450 W1,000 W2,700 Wh75%Custom load
Box Fan80 W160 W640 Wh100%Detailed sizing
Ceiling Fan60 W120 W480 Wh100%Detailed sizing
Tower Fan55 W110 W440 Wh100%Custom load
Pedestal Fan70 W140 W560 Wh100%Custom load
Shed Exhaust Fan90 W220 W540 Wh75%Detailed sizing
Attic Fan300 W800 W1,560 Wh65%Custom load
Whole House Fan600 W1,600 W2,400 Wh100%Custom load
Space Heater1,500 W1,700 W5,850 Wh65%Detailed sizing
Infrared Heater1,500 W1,700 W5,850 Wh65%Custom load
Oil-Filled Radiator1,500 W1,700 W6,600 Wh55%Custom load
Electric Baseboard Heater1,500 W1,800 W7,800 Wh65%Custom load
Electric Fireplace1,500 W1,800 W4,875 Wh65%Custom load
Furnace Blower700 W2,200 W2,520 Wh45%Custom load
Heat Pump3,000 W8,000 W15,000 Wh50%Detailed sizing
Dehumidifier500 W1,200 W3,300 Wh55%Detailed sizing
Humidifier60 W120 W360 Wh60%Custom load
Air Purifier55 W100 W990 Wh75%Custom load
Heat Recovery Ventilator120 W240 W1,584 Wh55%Custom load
Electric Blanket100 W120 W480 Wh60%Custom load
Heated Mattress Pad120 W140 W576 Wh60%Custom load
Bathroom Exhaust Fan35 W80 W35 Wh100%Custom load
Grow Tent Fan90 W220 W1,620 Wh75%Custom load
Greenhouse Exhaust Fan250 W700 W2,100 Wh70%Custom load
Chicken Coop Heater200 W250 W1,560 Wh65%Custom load

Water

ApplianceRunningSurgeTypical daily loadDutyNext step
Well Pump1,500 W4,500 W3,000 Wh100%Detailed sizing
Deep Well Pump2,200 W6,600 W4,400 Wh100%Detailed sizing
Shallow Well Pump900 W2,700 W1,800 Wh100%Custom load
Submersible Water Pump1,100 W3,300 W2,200 Wh100%Detailed sizing
Sump Pump800 W2,400 W520 Wh65%Custom load
Transfer Pump550 W1,600 W550 Wh100%Custom load
Pressure Booster Pump750 W2,200 W825 Wh55%Custom load
Irrigation Pump1,200 W3,600 W4,800 Wh100%Custom load
Pond Pump180 W450 W3,240 Wh75%Detailed sizing
Fountain Pump75 W180 W900 Wh100%Custom load
Aquarium Pump40 W90 W960 Wh100%Custom load
Pool Pump1,200 W3,600 W9,600 Wh100%Custom load
Hot Tub5,000 W7,000 W22,000 Wh55%Custom load
Electric Water Heater4,500 W5,000 W7,425 Wh55%Detailed sizing
Tankless Electric Water Heater9,000 W11,000 W9,000 Wh100%Custom load
Heat Pump Water Heater900 W2,200 W2,700 Wh50%Custom load
Hot-Water Recirculation Pump45 W100 W180 Wh100%Custom load
Water Softener35 W80 W35 Wh100%Custom load
UV Water Purifier55 W75 W1,320 Wh100%Custom load
Reverse Osmosis Pump80 W200 W96 Wh60%Custom load
Sewage Ejector Pump900 W3,000 W450 Wh100%Custom load
Macerator Toilet600 W1,800 W90 Wh100%Custom load
Composting Toilet Fan5 W10 W120 Wh100%Custom load
Rainwater Pump650 W2,000 W845 Wh65%Custom load
Livestock Water Tank Heater1,000 W1,200 W7,800 Wh65%Custom load

Workshop

ApplianceRunningSurgeTypical daily loadDutyNext step
Air Compressor1,800 W5,400 W1,170 Wh65%Detailed sizing
Circular Saw1,500 W3,000 W525 Wh100%Custom load
Table Saw1,800 W4,500 W900 Wh100%Custom load
Miter Saw1,800 W4,000 W630 Wh100%Custom load
Reciprocating Saw1,200 W2,200 W420 Wh100%Custom load
Jigsaw650 W1,200 W260 Wh100%Custom load
Band Saw900 W2,400 W450 Wh100%Custom load
Drill Press750 W2,200 W375 Wh100%Custom load
Power Drill700 W1,200 W280 Wh100%Custom load
Impact Driver500 W1,000 W200 Wh100%Custom load
Angle Grinder1,100 W2,200 W440 Wh100%Custom load
Bench Grinder600 W1,800 W240 Wh100%Custom load
Arc Welder5,000 W9,000 W1,750 Wh70%Custom load
MIG Welder3,500 W7,000 W1,225 Wh70%Custom load
Plasma Cutter4,500 W8,000 W1,350 Wh75%Custom load
Dust Collector1,200 W3,500 W1,200 Wh100%Custom load
Wood Planer1,800 W4,000 W720 Wh100%Custom load
Wood Router1,400 W2,500 W560 Wh100%Custom load
Orbital Sander350 W700 W263 Wh100%Custom load
Shop Lights120 W140 W720 Wh100%Detailed sizing
Garage Door Opener550 W1,400 W55 Wh100%Custom load
Tool Battery Charger250 W300 W500 Wh100%Detailed sizing
Engine Block Heater1,000 W1,100 W4,000 Wh100%Custom load
Battery Jump Starter120 W200 W240 Wh100%Detailed sizing
Electric Leaf Blower1,200 W2,400 W600 Wh100%Custom load
Electric String Trimmer900 W1,800 W450 Wh100%Custom load
Electric Chainsaw1,800 W3,600 W900 Wh100%Custom load
Electric Lawn Mower1,600 W3,200 W1,600 Wh100%Custom load
Electric Snow Blower1,800 W4,000 W1,350 Wh100%Custom load
Electric Log Splitter1,800 W5,000 W1,350 Wh100%Custom load
Bench Lathe1,000 W3,000 W750 Wh75%Custom load
Electric Kiln7,000 W8,500 W42,000 Wh75%Custom load

Electronics

ApplianceRunningSurgeTypical daily loadDutyNext step
Television100 W130 W400 Wh100%Detailed sizing
Laptop65 W90 W390 Wh100%Detailed sizing
Desktop Computer250 W450 W1,125 Wh75%Custom load
Gaming PC550 W850 W1,760 Wh80%Custom load
Computer Monitor35 W50 W210 Wh100%Detailed sizing
Game Console180 W250 W540 Wh100%Custom load
Soundbar60 W100 W135 Wh75%Custom load
Stereo120 W250 W252 Wh70%Detailed sizing
Home Theater Receiver350 W650 W735 Wh70%Custom load
Projector300 W450 W900 Wh100%Custom load
Inkjet Printer35 W60 W9 Wh50%Custom load
Laser Printer600 W1,200 W105 Wh35%Custom load
3D Printer180 W350 W936 Wh65%Custom load
Wi-Fi Router15 W25 W360 Wh100%Detailed sizing
Cable Modem12 W20 W288 Wh100%Detailed sizing
Starlink75 W120 W1,530 Wh85%Detailed sizing
Security Camera12 W20 W288 Wh100%Detailed sizing
Network Video Recorder45 W80 W1,080 Wh100%Custom load
Phone Charger20 W25 W40 Wh100%Detailed sizing
Tablet Charger30 W40 W90 Wh100%Custom load
E-Bike Charger150 W220 W600 Wh100%Custom load
EV Charger7,200 W8,000 W21,600 Wh100%Custom load

Medical

ApplianceRunningSurgeTypical daily loadDutyNext step
CPAP Machine55 W100 W440 Wh100%Detailed sizing
Oxygen Concentrator350 W650 W7,140 Wh85%Custom load
Mobility Scooter Charger180 W250 W1,440 Wh100%Custom load

Sizing method

  1. Daily load = running watts × typical operating hours × duty cycle.
  2. Collection target adds 20% planning margin, divides by 90% conversion efficiency, four peak-sun-hours, and 75% solar yield.
  3. Battery allowance assumes 80% usable LiFePO4 capacity and the same conversion and reserve factors.
  4. Inverter continuous allowance is 125% of running watts; surge allowance is at least 110% of the typical startup estimate.

Frequently asked questions

Are these watts product specifications?

No. They are conservative appliance-class planning midpoints assembled from typical manufacturer EnergyGuide, nameplate, and manual ranges. Your exact label and measured energy use control.

Why can two appliances with the same running watts need different systems?

Daily runtime changes the solar and battery energy requirement, while motor or compressor startup changes the inverter surge requirement. Both must pass independently.

Where do I combine multiple appliances?

Use the load and appliance calculator, then open the matching guide's diagram machine to size conductors and overcurrent protection for the complete system.

Demand evidence: 54 of the 180 records have a direct match in the supplied Bing/autocomplete sources. The published 40 are the highest-scoring eligible topics with a capacity-matched passing preset.