Off-Grid Cabin Calculator
What Size Of Portable Power Station Do You Need For An Off-Grid Cabin?
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When going to an off-grid cabin, you want to get rid of the stress of city life—but not to give up all your comforts. In the past, running tools or keeping the fridge on meant using a loud, high-maintenance petrol generator, which ruined the peace of the countryside.
Now you can use portable power stations paired with solar panels that are silent and emission-free. Power stations provide immediate 230V power for your tools, kitchen appliances, and even your Starlink routers—without needing outside fuel resources.
Choosing the right system size makes the difference between a trouble-free off-grid lifestyle and constantly dealing with power outages.
Below, we outline the three principal tiers of power station arrangements for cabins; our calculator below will do the necessary calculations and recommend power stations that fit your exact requirements.
The Off-Grid Cabin Power Calculator
Know exactly how much power your cabin consumes each day before choosing a battery.
Enter how often you use high-power appliances such as chop saws, kettles, or microwaves, and how long your continuously operating appliances—like fridges, dehumidifiers, or Wi-Fi routers—run.
The calculator will then total up your daily watt-hours and recommend the most suitable power station for your requirements.
Off-Grid Cabin Power Calculator
Simply enter your typical **uses**, **boils**, or **hours of runtime** for your cabin appliances and workshop tools below. We'll instantly calculate your daily consumption and recommend the ultimate power station or 12V hub to keep your remote retreat running.
Swipe table to view totals ➔
| Icon | Appliance | Avg. Watts | Daily Usage | Total (Wh) |
|---|---|---|---|---|
| High-Draw Cooking & Heating | ||||
| Electric Kettle (Assumes 5 mins/boil) | 1500W | boils | 0 Wh | |
| Induction Hob / Cooktop (Assumes 15 mins/use) | 1500W | uses | 0 Wh | |
| Microwave / Combi-Oven (Assumes 5 mins/use) | 1000W | uses | 0 Wh | |
| Coffee Machine / Espresso (Assumes 10 mins/use) | 1450W | uses | 0 Wh | |
| Hairdryer / Flat Iron (Assumes 10 mins/use) | 1600W | uses | 0 Wh | |
| Compact Washing Machine (Assumes 1 hr per cycle) | 1000W | cycles | 0 Wh | |
| Space Heater / Oil Radiator (Constant Draw) | 1500W | hrs | 0 Wh | |
| High-Draw Subtotal: | 0 Wh | |||
| Continuous Comfort (240V AC) | ||||
| Domestic Refrigerator/Freezer | 100W | hrs | 0 Wh | |
| CPAP / Medical Device | 40W | hrs | 0 Wh | |
| Electric Blanket | 50W | hrs | 0 Wh | |
| LED TV / Projector | 50W | hrs | 0 Wh | |
| Dehumidifier | 200W | hrs | 0 Wh | |
| Wi-Fi Router / Mesh System | 15W | hrs | 0 Wh | |
| Security Cameras / CCTV (Per Camera) | 5W | hrs | 0 Wh | |
| Sound System / Bluetooth | 20W | hrs | 0 Wh | |
| Vacuum Cleaner (Assumes 20 mins/use) | 800W | uses | 0 Wh | |
| 240V Comfort Subtotal: | 0 Wh | |||
| Dedicated 12V DC System (Cabin Essentials) | ||||
| Diesel Parking Heater | 70W | hrs | 0 Wh | |
| Heavy-duty Water Pump (Assumes 2 mins/use) | 700W | uses | 0 Wh | |
| 12V Water Heater / Immersion | 200W | hrs | 0 Wh | |
| Cabin LED Lighting Circuit | 15W | hrs | 0 Wh | |
| 12V/24V Compressor Fridge | 15W | hrs | 0 Wh | |
| 4G/5G Router / Starlink | 30W | hrs | 0 Wh | |
| Roof / Extractor Fan | 15W | hrs | 0 Wh | |
| Laptop / Tablet (USB-C PD) | 60W | hrs | 0 Wh | |
| Phone Charger (USB-A) | 10W | hrs | 0 Wh | |
| Fast Phone Charger (USB-C) | 15W | hrs | 0 Wh | |
| 12V DC Subtotal: | 0 Wh | |||
| Heavy Duty Cabincraft / Workshop Tools | ||||
| Chop Saw / Table Saw (Assumes 5 mins total cut time) | 1500W | uses | 0 Wh | |
| Circular Saw / Mitre Saw (Assumes 5 mins total cut time) | 1200W | uses | 0 Wh | |
| Air Compressor (Assumes 15 mins/use) | 1000W | uses | 0 Wh | |
| Electric Chainsaw (Assumes 15 mins total cut time) | 1800W | uses | 0 Wh | |
| Corded Drill / Angle Grinder (Assumes 15 mins/use) | 600W | uses | 0 Wh | |
| Pressure Washer (Assumes 20 mins/use) | 1500W | uses | 0 Wh | |
| Workshop Subtotal: | 0 Wh | |||
RESULTS BOX
Daily Raw Power Needed: 0 Wh
Recommended Station Size: 0 Wh Class
*Calculation includes a 15% buffer to account for common 240V AC inverter efficiency loss (the standard difference between battery capacity and usable output for heavy-duty plug sockets).
RECOMMENDED POWER STATIONS (STEP 2)
Based on your off-grid cabin calculation above, we recommend these top choices:
Tier 1: The Basic Weekend Retreat (Up to 500Wh Class)
The Goal
All you have is a tiny summer house or a simple weekend cabin, and you won’t need to use large power tools or a microwave.
The primary aim is to keep the lights on, charge your laptop, and run an efficient 12V or 24V fridge or a CPAP machine overnight.
A 500Wh power station is ideal for meeting constant low-power requirements; it is the best lightweight option for basic cabin comforts.
#1 Choice: Jackery Explorer 500 v2
- Continuous Output: 500W pure sine wave (1,000W Surge)
- Features: A dependable, lightweight choice that will keep your cabin lights, 4G or 5G router, and other essentials running. It now features a long-lasting LiFePO4 battery, enabling it to handle many years of weekend use.
- It can easily meet the low power requirements of LED lights and personal devices while taking up very little space.
#2 Choice: EcoFlow River 2 Max
- Continuous Output: 500W pure sine wave (1,000W X-Boost)
- Among other things, it takes just one hour to charge, which is great when you're using a small backup generator for quick daily recharges during dark UK winters, when solar might not be an option.
- It's suitable because it provides constant 12V power for compressor fridges and includes a robust app that lets you monitor energy usage remotely when you are away from the cabin.
Technical Comparison: Jackery 500 v2 vs EcoFlow River 2 Max
| Feature | Jackery Explorer 500 v2 | EcoFlow River 2 Max |
|---|---|---|
| Battery Capacity | 518Wh | 512Wh |
| Battery Chemistry | LiFePO4 (4,000+ cycles) | LiFePO4 (3,000+ cycles) |
| Continuous AC Output | 500W (1,000W Surge) | 500W (1,000W Surge) |
| UK AC Outlets | 230V 3-pin UK Socket | 2x 230V 3-pin UK Sockets |
| 12V Fridge Runtime | ~24–35 Hours | ~23–32 Hours |
| AC Mains Recharge | ~1.5 Hours | 60 Minutes (0–100%) |
| Max Solar Input | 100W–200W | 220W |
| Weight | ~6.0 kg | 6.0 kg |
| Warranty | 5 Years | 5 Years |
If you need to keep your power station charged, use our Solar Panel Selector to pick the right portable folding solar panels (100W-200W) for use with these units.
Just enter your chosen power station in the drop down list for a recommended solar panel and cable accessory list.
Tier 2: The Comfortable Remote Cabin (510Wh to 1000Wh Class)
The Goal
The cabin can function as a fully remote home. You have to handle sudden power surges from appliances such as a 1000W microwave, an espresso machine, or a 1500W kettle.
You may also use mid-range tools, such as a drill or an angle grinder, for quick repairs.
A 1kWh unit fitted with a good inverter (1500W or higher) is the best choice, since it provides enough power to cook, make coffee, and keep your fridge running throughout the day.
#1 Choice: EcoFlow DELTA 2
- Continuous Output: 1,800W pure sine wave (2,700W X-Boost)
- This is ideal for a small cabin, and the powerful 1,800W inverter can handle the large surges from microwaves and coffee machines.
- If you stay at your cabin longer, you can add another smart battery to reach 2,048Wh of capacity.
#2 Choice: Jackery Explorer 1000 v2
- Continuous Output: 1,500W pure sine wave (3,000W Surge)
- Features: This model is reliable and durable, with the capacity to handle a weekend off-grid. This new V2 version is smaller and therefore fits well in a cabin cupboard.
- Recharge: Since it can absorb 400W of solar power, you can recharge it quickly during the day.
Technical Comparison: EcoFlow DELTA 2 vs Jackery Explorer 1000 v2
| Feature | EcoFlow Delta 2 | Jackery Explorer 1000 v2 |
|---|---|---|
| Battery Capacity | 1,024Wh (Expandable) | 1,070Wh |
| Battery Chemistry | LiFePO4 (3,000+ cycles) | LiFePO4 (4,000+ cycles) |
| Continuous AC Output | 1,800W (2,700W X-Boost) | 1,500W (3,000W Surge) |
| UK AC Outlets | 4x 230V 3-pin UK Sockets | 2x 230V 3-pin UK Sockets |
| Travel Kettle Compatible? | Yes (Handles up to 1800W–2400W) | Yes (Handles up to 1500W) |
| AC Recharge Time | 0–80% in 50 min, 100% in 80 min | ~1 Hour (Emergency Mode) |
| Max Solar Input | 500W (11–60V, 15A) | 400W |
| Weight | 12.0 kg | 10.8 kg |
| Warranty | 5 Years | 5 Years |
Once you know your daily power use from the calculator, check out our Solar Panel Selector.
Pick your power station model from the drop down list to see which folding panels fit, and which adapter cables and accessories you’ll need.
Tier 3: The Full-Time Off-Grid Homestead (1000Wh to 2000Wh+ Class)
The Goal
You maintain an off-grid cabin and need a lot of power to run heavy-duty 700-watt water pumps, fridges, 1500-watt chop saws, and air compressors; your power station is the central point for the building's electrical supply.
A base unit with a capacity of at least 2kWh and an inverter of 2,400 W or more is required, with the option to add extra batteries as your cabin grows.
#1 Choice: Bluetti Apex 300 & DC Hub
- Continuous Output: 3,000W pure sine wave (6,000W Surge)
- Main features: Best option for off-grid cabins; designed to handle heavy workshop tools and dedicated 12V DC systems. Its modular design lets you separate the inverter from the battery and expand as needed.
- You can stack several B300 battery modules to reach a total of 12,288Wh, so your cabin stays powered even during long periods of poor UK weather.
#2 Choice: EcoFlow DELTA 2 Max
- Continuous Output: 2,400W pure sine wave (3,400W X-Boost)
- Feature of note: The capacity is expandable, making it ideal for running large fridges, heaters, and washing machines for extended periods.
- Solar Integration: The device has two individual solar ports, each capable of handling up to 1,000W, allowing you to run two solar arrays on either side of your cabin roof so you can use both the morning and evening sun.
| Feature | Bluetti Apex 300 & DC Hub | EcoFlow DELTA 2 Max |
|---|---|---|
| Base Capacity | 3,072Wh (Modular B300) | 2,048Wh |
| Max Expanded Capacity | Up to 12,288Wh | Up to 6,144Wh |
| Battery Chemistry | LiFePO4 (3,500+ cycles) | LiFePO4 (3,000+ cycles) |
| Continuous AC Output | 3,000W (6,000W Surge) | 2,400W (3,400W X-Boost) |
| UK AC Outlets | 4x 230V 3-pin UK Sockets | 4x 230V 3-pin UK Sockets |
| Heavy Workshop Tools? | Yes (Chop saws, compressors) | Yes (Chop saws, heavy pumps) |
| Max Solar Input | 2,400W (Dual MPPT) | 1,000W (Dual MPPT) |
| Warranty | 4 Years | 5 Years |
Power Your Cabin with Solar
A powerful power station stores your energy, but the right-sized solar array makes your cabin independent of the grid.
Once you've worked out your daily power consumption using the calculator, use our Solar Panel Selector.
Select your power station from the dropdown menu to find the roof panels we recommend, along with the mounting hardware, waterproof cable glands, and the correct adapter cables for safely connecting your cabin.
Remote Power Made Simple
You don't need to complicate off-grid power; choose the right power station and solar for your tools and appliances, then enjoy quiet, reliable power anywhere.
