Please tell us about yourself and your property so we can contact you with a system recommendation.
Select from the lists below (grouped by category) to add common appliances.
Please note that watts are estimated averages and may vary from your actual appliance.
| Appliance | Watts | Add |
|---|---|---|
| Drip Coffee Maker | 1200 | |
| -- keep coffee warm | 250 | |
| One-Cup Instant Coffee Maker (Keurig) | 1500 | |
| Electric Kettle (1L) | 1500 | |
| Toaster (2 slot) | 750 | |
| Toaster (4-slot) | 1200 | |
| Blender | 300 | |
| Hand Mixer | 150 | |
| Food Processer/Mixer | 350 | |
| Waffle Maker | 1200 | |
| Electric Frying Pan | 1200 | |
| Slow Cooker | 1200 | |
| Electric Filet Knife | 125 | |
| Microwave Oven | 1400 | |
| Dishwasher | 1500 | |
| Refrigerator/Freezer (18 CF) | 650 | |
| Refrigerator/Freezer (20 CF) | 800 | |
| Freezer | 500 | |
| Hot Water Heater (40 gallon propane)* | 9.4 | |
| Radio (AM/FM) | 50 | |
| Hair Dryer | 1400 | |
| Computer | 200 | |
| -- Laptop | 50 | |
| -- iPad | 10 | |
| -- PC & Monitor | 140 | |
| -- Printer (Inkjet) | 75 | |
| TV (50" LCD Flat Screen) | 90 | |
| TV (50" LED Flat Screen) | 60 | |
| TV (44-50" Flat Screen Plasma) | 240 | |
| Satellite Dish | 30 | |
| Xbox One Game Console | 153 | |
| Playstation 5 Game Console (PS5) | 210 | |
| Blu Ray/DVD Player | 15 | |
| Vacuum Cleaner | 1500 | |
| Space Heater | 1500 | |
| Clothes Iron | 1000 | |
| Clothes Washing Machine | 1000 | |
| Clothes Dryer Gas | 400 | |
| Fireplace/Wood Stove Blower Fan | 60 | |
| Water Purification System | 250 | |
| Table Fan (12" 3-speed) | 230 | |
| Ceiling Fan (42" 3-speed) | 65 | |
| Ceiling Fan (30" 3-speed) | 55 | |
| Ceiling Light Incan/CFL (60 watt) | 60 | |
| Ceiling Light LED Lightbulb (10W) | 10 | |
| Table Light LED Lightbulb (10W) | 10 | |
| Table Light Incan/CFL (60 watt) | 60 | |
| Outside Spot Light Incan/CFL (150 watt) | 150 | |
| Bathroom Exhaust Fan (120 watt) | 120 | |
| LED Night Light (0.5 watt) | 0.5 | |
| Mini Decoration Lights LED (100 Lights) | 5 | |
| CPAP Breathing Machine | 60 | |
| Starlink Satellite Internet (Standard) | 75 | |
| Standard Internet Router | 8 |
| Appliance | Watts | Add |
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Add (or remove) any appliance you plan to run off the system. We'll track AC vs. DC usage separately.
You can add custom items or select from predefined lists above.
This calculator assumes each appliance runs every day. Please adjust the “Days/Week” field to match your real-world usage.
Accurate runtimes are essential for the most reliable system recommendation.
| Appliance | AC/DC | Watts | Quantity | Hours/Day | Days/Week | Wh/Day | Wh/Week | Action |
|---|---|---|---|---|---|---|---|---|
Now let's gather a few more details.
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Tip: Refer to our
Sun Insolation Hours Page
Choose the value that matches your usage (lowest for winter, average for seasonal, etc.).
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Choose the best match for your planned solar location.
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12V: typically used for smaller systems such as seasonal or weekend use camps, cabins, and RV’s with 12VDC dedicated circuits to operate lighting, water pump, composting toilet fan, ceiling fan, or solar/DC refrigerator. Can also operate 120VAC electrical loads via small inverter. 24V: typically used for mid-sized systems with moderate electrical loads and usage. 120VAC output only with some options for 120/240VAC. 48V: typically used for larger systems such as off-grid homesteads that can support even the largest split-phase 120/240V electrical loads. |
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Sealed/AGM: Moderately higher cost per Ah. Target 50% - 80% DoD. This calculator assumes 50% DoD. Lithium (LiFePO4): Highest cost per Ah. Newest energy storage technology. Utilizes internal BMS (Battery Management System). Target 80% DoD. |
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Desired Days of Autonomy means how many consecutive days of will you want your system to operate without any sun or outside charge
source available. Note that every day of additional autonomy will significantly increase your battery bank size and overall system cost.
Those willing to use a generator more often during winter, or during extended periods of inclement weather, will have a lower system cost but increased operating cost of a generator
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When you submit, we'll combine all your data and get back to you soon!
