Best Solar Generators for Home Backup (2026)
For home backup, capacity and output wattage matter far more than weight. The EcoFlow DELTA Pro (3600Wh, 3600W) is the best solar generator for most home backup buyers — it handles a fridge, lights, phone charging, and a small TV for over 24 hours, and it can connect to the EcoFlow Smart Home Panel for automatic switchover when the grid drops. If that's overkill, the Bluetti AC200L at around $1,499 covers most outage scenarios at better value. Here are the five best options ranked by real outage performance.
Our Top 5 Picks
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Best Overall
EcoFlow DELTA Pro
The most capable home backup solar generator under $5,000 — handles whole-room loads for a full day and expands to 25kWh for extended outages.
Capacity
3600Wh
AC Output
3600W
Surge
7200W
Weight
45kg / 99.2lbs
Pros
- ✓3600Wh powers a fridge + lights + devices for 24+ hours
- ✓Expandable to 25kWh with Smart Generator and Extra Batteries
- ✓Smart Home Panel integration for automatic grid failover
- ✓Two units in split-phase deliver 240V for well pumps, dryers, central AC
- ✓1600W solar input recharges fully in ~3 hours of peak sun
Cons
- ✗45kg — not moveable without wheels, designed to stay in one place
- ✗$2,699 is a significant investment; entry cost climbs fast with accessories
- ✗Overkill for short 8–12 hour outages where a $1,499 unit works fine
The DELTA Pro running a typical essential-load setup — a full-size fridge (150W), LED lighting (30W total), two phone chargers (30W combined), and a small TV (60W) — draws about 270W. At that load: 3600Wh × 0.85 ÷ 270W = approximately 11.3 hours of continuous runtime. Add a second DELTA Pro Extra Battery (another 3600Wh for ~$1,699) and you're at 22+ hours. The Smart Home Panel ($300) handles automatic switchover so you don't need to manually plug devices in during an outage.
For buyers who need 240V — a well pump, electric range, or central AC — two DELTA Pro units can be connected in split-phase configuration to deliver 240V/7200W. No other portable unit in this price range does this. Full details in our EcoFlow DELTA Pro review.
~$2,699
Check price on AmazonBest Value
Bluetti AC200L
The best value home backup generator — 2048Wh covers most outages, and 1200W solar input means a full recharge in a single good day of sun.
Capacity
2048Wh
AC Output
2400W
Surge
6000W (Power Lifting)
Weight
28kg / 61.7lbs
Pros
- ✓1200W solar input (dual MPPT) is best-in-class at this price
- ✓Power Lifting surge to 6000W handles most appliance startup spikes
- ✓Expandable with B230/B300 batteries
- ✓2400W continuous covers fridge, lights, devices simultaneously
Cons
- ✗28kg — heavy for its capacity class
- ✗App is functional but less polished than EcoFlow
- ✗No automatic home panel integration
At 2048Wh the AC200L runs the same essential load (fridge + lights + devices at ~270W) for about 6.4 hours on a full charge. That covers most overnight outages. Its standout feature for home backup is the 1200W solar input: two 200W panels in good sun can push 300–350W of real charge, meaning a full recharge in 6–8 hours of daylight — the full day after a storm, ready again by evening. See our Bluetti AC200L review for the full breakdown.
~$1,499
Check price on AmazonBest for High-Draw Appliances
Jackery Explorer 2000 Plus
3000W continuous is the highest output in the $1,500 tier — the right pick if you need to run a window AC, sump pump, or power tools during an outage.
Capacity
2042Wh
AC Output
3000W
Surge
6000W
Weight
28kg / 61.7lbs
Pros
- ✓3000W continuous — highest output at this price
- ✓6000W surge handles compressor and motor startup loads
- ✓LiFePO4 with 4000+ cycles
- ✓Often on sale at $1,299
Cons
- ✗800W solar input is the lowest in this tier
- ✗No automatic home panel support
- ✗App is basic
The Jackery 2000 Plus's 3000W continuous output is the real differentiator here. It'll run a 5,000 BTU window AC (500W) for about 3.5 hours, or a sump pump (750W) continuously for 2.3 hours. For outages where you need to run something with a large motor, no other unit at this price matches it. Full details: Jackery Explorer 2000 Plus review.
~$1,499 (sale ~$1,299)
Check price on AmazonStrong Alternative
Anker SOLIX F2000
Solid build quality and competitive specs — a legitimate alternative if you find it on sale, though the ecosystem is thinner than EcoFlow or Bluetti.
Capacity
2048Wh
AC Output
2200W
Surge
4400W
Weight
28.6kg / 63lbs
Pros
- ✓4400W surge covers most residential appliance startups
- ✓1200W solar input matches the Bluetti AC200L
- ✓Expandable to 4096Wh with BP2000 battery pack
- ✓Excellent build quality
Cons
- ✗Fewer accessories and solar panel options than EcoFlow or Bluetti
- ✗2200W continuous is slightly lower than the Jackery 2000 Plus
- ✗Anker's ecosystem is newer and less tested long-term
The SOLIX F2000 competes directly with the Bluetti AC200L and Jackery 2000 Plus at the same $1,499 price. It wins on surge wattage (4400W) and matches Bluetti on solar input (1200W), but loses on continuous output and ecosystem maturity. If you see it on sale below $1,200, it's an excellent buy. Full details: Anker SOLIX F2000 review.
~$1,499
Check price on AmazonBest Scalable System
Bluetti AC300 + B300
The most scalable home backup system — expensive to start, but the right choice if you need more than 4kWh and want room to expand.
Capacity
3072Wh (1x B300) to 12,288Wh (4x B300)
AC Output
3000W
Surge
6000W
Weight
15.9kg unit + 30kg per B300
Pros
- ✓Scales to 12,288Wh — enough for 2–3 day outages with essential loads
- ✓2400W solar input is the highest of any unit on this list
- ✓3000W output handles heavy appliances
Cons
- ✗Entry cost (~$4,400 for unit + one B300) is steep
- ✗Modular setup — buying the unit without a battery is useless
- ✗Very heavy when fully loaded
The AC300 only makes sense if you need more capacity than a single 2048Wh unit can provide and you're willing to pay for it. At $4,400 for 3072Wh, it's more expensive per Wh than buying two EcoFlow DELTA 2 Max units. But it scales linearly: each additional B300 battery ($2,099) adds 3072Wh, up to 12,288Wh total. For a well-equipped off-grid cabin or a house in an area with frequent multi-day outages, it's the most practical system short of a whole-home battery installation. See our Bluetti AC300 review and the DELTA Pro vs AC300 comparison.
~$4,400 (unit + 1x B300)
Check price on AmazonWhat to Look for in a Home Backup Solar Generator
Calculate your essential load first
Before buying, add up the wattage of everything you need to keep running during an outage. A typical essential-load setup: full-size fridge (150W), LED lights throughout the house (30–60W total), phone and laptop charging (40–80W), and a small TV (60–100W). That's roughly 280–400W continuous. Multiply by the hours you want to run and divide by 0.85 for your minimum capacity in Wh.
AC output wattage sets what you can run simultaneously
A 2400W unit can run a fridge, lights, TV, and device charging simultaneously with headroom to spare. It won't run a window AC unit and everything else at the same time. If you need to run high-draw appliances (window AC, sump pump, electric range), look at 3000W+ units like the Jackery 2000 Plus or EcoFlow DELTA Pro.
Solar input determines outage resilience
If you lose power for more than 24 hours, you'll need to recharge from solar. A unit with 1200W solar input and two 200W panels will receive 300–350W of real charge per hour of good sun — enough to fully recharge 2048Wh in a full day. A unit with 500W solar input takes two days to recharge the same capacity.
Frequently Asked Questions
What size solar generator do I need for home backup?
For essential-load home backup (fridge, lights, phone charging), a 2000Wh unit with 2000W+ output covers most overnight outages. For 24–48 hour outages or if you need to run a window AC or sump pump, step up to 3000Wh+ with 3000W output. The EcoFlow DELTA Pro (3600Wh) is the standard recommendation for serious home backup.
How long will a solar generator run a refrigerator during a power outage?
A full-size refrigerator draws 100–150W. A 1024Wh solar generator runs it for 5.8–8.7 hours. A 2048Wh unit runs it 11.6–17.4 hours. A 3600Wh unit like the EcoFlow DELTA Pro runs it for 20–30 hours on a single charge, depending on how often the fridge cycles.
Can a solar generator power a whole house?
No portable solar generator can replace whole-home power — the average US home uses 30–50kWh per day, far beyond what any portable unit provides. But a 2000–3600Wh generator can power your essential appliances (fridge, lights, devices, CPAP) through most short outages of 12–24 hours.
Is a solar generator better than a gas generator for home backup?
For outages under 48 hours, a solar generator is better for most homeowners — silent, safe to run indoors, no fuel to store, no maintenance. For outages over 48 hours or if you need to run heavy loads (central AC, well pump), a gas generator or a hybrid approach (solar generator + gas backup) is more practical.
What is the EcoFlow Smart Home Panel?
The EcoFlow Smart Home Panel is an accessory ($300) that connects the EcoFlow DELTA Pro to your home's electrical panel. It monitors grid power and automatically switches essential circuits to the DELTA Pro within 30 milliseconds of a power outage — similar to a whole-home generator switchover, but cleaner and quieter.
How do I charge a solar generator during a power outage?
During an outage, you recharge from solar panels (the most useful method), your car's 12V outlet (slow — 100–200W depending on the unit), or a gas generator if you have one. Most units also support AC wall charging, but that requires grid power. Connecting 2–4 solar panels to a 1200W-input unit like the Bluetti AC200L can fully recharge it in a single sunny day.
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