A complete solar kit is the fastest way to get an off-grid cabin running: panels, controller or inverter, battery and most of the cables in one order, sized to work together. The trick is buying the right size, because a weekend cabin and a cabin you live in need very different systems.
Below are five complete kits from Eco-Worthy and Renogy, grouped by cabin size, with our estimate of what each produces on a real day.
How we chose: we compared the manufacturers’ published kit specifications (panels, battery, inverter, charge controller and what’s in the box). We have not installed or tested these kits ourselves. Prices and stock change often; several kits were backordered or sold out when we checked in November 2026, so confirm availability through the links.
Quick comparison
| Kit | Panels | System | Battery | Inverter | Est. daily output (4 sun hours) |
|---|---|---|---|---|---|
| Eco-Worthy 400W 12V kit | 4 × 100W | 12V | 1.28 or 2.56 kWh LiFePO4 | 1,100 W or 2,000 W pure sine | ~1.2 kWh |
| Renogy Cabin Solution 1.2kW | 4 × 320W | 48V inverter | 10.24 kWh (4 × 12V 200Ah) | 3,500 W, 120V | ~3.8 kWh |
| Eco-Worthy 1560W 48V kit | 8 × 195W bifacial | 48V | 5.12 kWh server-rack | 3,500 W, 120V | ~4.7 kWh |
| Eco-Worthy 2340W 48V kit | 12 × 195W | 48V | 5.12 kWh LiFePO4 server-rack | 5,000 W, 120V | ~7.0 kWh |
| Eco-Worthy 10kW system | 14 × 590W (8.26 kW) or 18 × 590W | 48V | 20.48 or 30.72 kWh LiFePO4 | 2 × 5,000 W, 120/240V | ~24.8 kWh (8.26 kW version) |
How we estimated daily output: panel watts × peak sun hours × 0.75 for real-world losses. At 4 peak sun hours (a middle-of-the-road figure for much of the US), 1 kW of panels makes about 3 kWh per day. Winter in the north can be half that. Plug your own location and appliances into our cabin solar calculator.
| Kit (panel watts) | 3 sun hours | 4 sun hours | 5 sun hours |
|---|---|---|---|
| 400W | 0.9 kWh | 1.2 kWh | 1.5 kWh |
| 1,280W | 2.9 kWh | 3.8 kWh | 4.8 kWh |
| 1,560W | 3.5 kWh | 4.7 kWh | 5.9 kWh |
| 2,340W | 5.3 kWh | 7.0 kWh | 8.8 kWh |
| 8,260W | 18.6 kWh | 24.8 kWh | 31.0 kWh |
1. Eco-Worthy 400W 12V kit: best for a weekend cabin
The simplest complete kit: four 100W mono panels, a 40A MPPT controller, Z mounting brackets, cables, and either a 1,100 W inverter with one 12V 100Ah LiFePO4 battery (1.28 kWh) or a 2,000 W inverter with two (Eco-Worthy calls it 2.4 kWh). Eco-Worthy quotes an average of about 1.6 kWh per day, a sunny-day figure above our 1.2 kWh estimate at 4 sun hours.
That’s enough for LED lights, phones, a laptop, a fan, a water pump and a small efficient 12V fridge, but not for an electric stove, space heater or air conditioning.
- Good for: weekend cabins, hunting camps, sheds
- Watch out for: it’s 12V and 400W, so it won’t grow much; see Eco-Worthy vs Renogy for the controller limits
Eco-Worthy 400W 12V kit. 4 × 100W panels, 40A MPPT, inverter and LiFePO4 battery options.
2. Renogy Cabin Solution 1.2kW: most battery for a part-time cabin
Renogy’s cabin kit pairs four 320W N-type panels (1,280 W) with a 48V 3,500 W pure sine inverter-charger (120V output, 80A MPPT, up to 4,400 W of PV) and four 12V 200Ah Core Mini lithium batteries: 10.24 kWh of storage, the most in this size class. It also includes a combiner box, breakers, a breaker box, battery and inverter cables and a Bluetooth module, which many kits leave out. A 2.5 kW version doubles the panels and batteries.
The big battery means you can ride through two or three cloudy days, but at about 3.8 kWh per day of solar, refilling it from empty takes a few sunny days.
- Good for: part-time cabins that need to run a fridge and well pump through cloudy weekends
- Watch out for: the Core Mini batteries can’t charge below 32°F, so keep them in a space that stays above freezing; mounting racks aren’t listed; it was backordered when we checked
Renogy Cabin Solution 1.2kW. 1,280 W of panels, 10.24 kWh battery, 3,500 W inverter-charger.
3. Eco-Worthy 1560W 48V kit: best mid-size 48V starter system
Eight 195W bifacial panels (1,560 W), a 3,500 W all-in-one inverter-charger (120V, 6,000 W peak, up to 4,400 W of PV input) and one 48V 100Ah server-rack battery (5.12 kWh). Being 48V from the start is the real advantage: Eco-Worthy says you can add up to 32 batteries and run up to six inverters in parallel, so the system can grow with the cabin.
- Good for: cabins you plan to expand, with room on the inverter for twice the panels
- Watch out for: mounting hardware, a PV disconnect and a battery fuse aren’t listed in the box; it showed sold out when we checked
Eco-Worthy 1560W 48V kit. 1,560 W bifacial panels, 3,500 W inverter, 5.12 kWh battery.
4. Eco-Worthy 2340W 48V kit: best for a full-time 120V cabin
Twelve 195W panels (2,340 W), a 5,000 W inverter-charger (10,000 W peak, high-voltage PV input up to 500V and 5,500 W) and a 48V 100Ah LiFePO4 server-rack battery (5.12 kWh) rated to UL9540, UL1973 and UL9540A. It includes 12 Z brackets and PV cables. At about 7 kWh per day in average sun, it can cover a full-size fridge, well pump, washing machine and electronics in most seasons.
- Good for: full-time cabins with only 120V appliances
- Watch out for: one battery is small for 7 kWh of daily production, so budget for a second; DC breakers and a battery disconnect aren’t included
Eco-Worthy 2340W 48V kit. 2,340 W of panels, 5,000 W inverter, 5.12 kWh LiFePO4.
5. Eco-Worthy 10kW system: best for a full-time cabin with 240V loads
For a cabin that needs a well pump, dryer or other 240V appliance, you need split-phase output. This system uses two 5,000 W inverters to supply 120V and 240V at the same time, with 14 × 590W panels (8.26 kW) and 20.48 kWh of LiFePO4 storage, or 18 panels and 30.72 kWh. A battery rack with a 600A busbar is included.
- Good for: full-time off-grid homes and large cabins
- Watch out for: this is a professional-scale install (racking, breakers and permits); mounting hardware isn’t listed
Eco-Worthy 10kW off-grid system. 120/240V, 8.26–10.62 kW of panels, 20–31 kWh of storage.
Check the system at Eco-Worthy
How to choose the right kit
- Start with daily watt-hours, not panel watts. Our guide on how much solar you need for a cabin walks through it.
- 12V for small, 48V for anything that will grow. Above about 1 kW, 48V means thinner cables and room to add panels and batteries.
- Match battery to production. Store at least one day of use; more if you visit in winter.
- Check 120V vs 120/240V. A 240V well pump rules out every single-inverter kit here.
- Budget for the missing parts: mounts, fuses, breakers, disconnects and a battery monitor.
- Keep a generator for winter. Especially under trees or in northern states.
What cabin owners say
We read cabin and off-grid forums to see what owners learn after the first season:
- Start small and grow. One owner who has lived off grid for about 20 years started with a single 45W panel and grew in stages to about 1.4 kW and 400Ah of LiFePO4. Moving the batteries indoors fixed their winter cold losses. (DIY Solar Forum)
- Winter shade can make solar nearly useless. For a cabin surrounded by trees, members warned that winter production may be close to zero and advised keeping a generator either way, charging the batteries through an inverter-charger rather than running the generator constantly. (SolarPanelTalk)
- Size the generator to the charger. Owners recommended sizing the battery bank first, then the charger, then a right-sized generator of around 3 kW instead of an oversized one, and noted that running a deep-well pump on solar is far more expensive than filling a cistern occasionally. (Solar Electric Power forum)
- Get a battery monitor and watch phantom loads. A cabin owner a year into his system called the battery monitor essential and warned about always-on devices like satellite receivers. (Solar Electric Power forum)
The bottom line
For a weekend cabin, the Eco-Worthy 400W kit covers lights, electronics and a small fridge. For a part-time cabin, the Renogy Cabin Solution gives you the biggest battery, while the Eco-Worthy 1560W 48V kit is easier to expand. For full-time living, the Eco-Worthy 2340W covers 120V homes and the 10kW system adds 240V. Whatever you choose, size it from your daily watt-hours and plan for winter.
Not sure how big to go? Run your appliances through the cabin solar calculator first.
Sources
- DIY Solar Forum: Off grid 20 years now
- SolarPanelTalk: Cabin near the forest with a lot of shade in winter
- Solar Electric Power forum: Off-grid system with backup genset
- Solar Electric Power forum: Off-grid cabin system approaching one year
Frequently asked questions
- What size solar kit do I need for an off-grid cabin?
- A weekend cabin with lights, phones, a fan and a small 12V fridge is often fine with 400W of panels and a 12V 100Ah lithium battery. A cabin you live in part-time with a full-size fridge and well pump usually needs 1.5 to 3 kW of panels and 5 kWh or more of battery. Size from your daily watt-hours.
- Do off-grid solar kits include everything?
- Most include panels, a charge controller or inverter-charger, cables and often a battery. Mounting hardware, fuses, breakers and disconnects are frequently missing, so check the box contents and budget for them.
- Can a solar kit run a cabin with 240V appliances?
- Only if the inverter supports 120/240V split phase. Most single-inverter kits are 120V only. Eco-Worthy's 10kW system uses two inverters to provide 120V and 240V at the same time.
- Do I still need a generator with a solar kit?
- For a cabin used in winter or under trees, yes in most cases. Owners commonly keep a generator to recharge batteries during long cloudy spells, ideally through an inverter-charger.