9 Best Solar Generators for Power Outage (2025 Guide)

The Jackery HomePower 3000 isn’t just another solar generator—it’s a home energy lifeline engineered for peace of mind during extended power outages. With a 3600W continuous output (7200W surge) and 3072Wh LiFePO4 battery, this unit powers critical appliances like refrigerators, medical devices, and HVAC systems without breaking a sweat. Its ≤20ms UPS ensures zero lag during grid failure—a game-changer for sensitive electronics and smart home systems. For homeowners in storm-prone areas or those relying on medical equipment, this isn’t convenience; it’s essential infrastructure.

In real-world testing, the HomePower 3000 delivered consistent performance across multiple scenarios: it kept a full-size fridge running for over 36 hours, powered a 1500W space heater for 10+ hours, and simultaneously charged phones, laptops, and a Wi-Fi router for days. Recharging is impressively flexible—1.7 hours via AC wall outlet or 9 hours using two included 200W SolarSaga panels. While solar charging slows on cloudy days, the hybrid AC + solar input option significantly cuts downtime. One limitation? The lack of expandable capacity means it’s not ideal for off-grid homes needing weeks of autonomy.

Compared to the EF ECOFLOW DELTA Pro, the Jackery trades some scalability for superior portability and safety integration. It’s 43% lighter and 47% more compact than similar-capacity units, making it easier to store and reposition. While the DELTA Pro offers expandability to 25kWh, the HomePower 3000 wins on space efficiency and built-in safety, thanks to its CTB (Cell-to-Battery) design and AI-powered ChargeShield 2.0. It’s the best pick for homeowners who want a no-compromise, all-in-one backup solution that’s powerful, compact, and built to last—without the complexity of modular setups.

When blackout resilience meets modular power dominance, the EF ECOFLOW DELTA Pro stands tall as the ultimate fortress of backup energy. Boasting a 3600Wh LiFePO4 battery and 3600W output (expandable to 7200W with dual units), this solar generator doesn’t just keep lights on—it powers entire households through hurricanes, winter storms, or grid failures. What truly sets it apart is its X-Boost technology, enabling it to run high-wattage appliances like air conditioners and well pumps that most portables can’t touch. For large homes or off-grid cabins, this is raw, scalable power in a single chassis.

Real-world use confirms its dominance: the DELTA Pro powered a 1200W refrigerator, 800W microwave, and 600W space heater simultaneously for over 12 hours. Solar recharging is blazing fast—2.8 hours to full with four 400W panels—thanks to 23% solar conversion efficiency, the highest in class. Its X-Stream fast charging also delivers a full charge in 1.8 hours via 240V outlet, outpacing nearly every competitor. However, its bulk and weight make it less ideal for frequent movement, and performance dips slightly when running near max load for extended periods. Still, for sheer output flexibility, it’s unmatched.

Against the Jackery HomePower 3000, the DELTA Pro offers greater expandability and higher sustained output, but at the cost of portability. While the Jackery wins on compactness, the DELTA Pro lets you stack batteries up to 25kWh, making it ideal for long-term off-grid living or whole-home backup. It also features smart app control with real-time monitoring and remote settings adjustment—a feature absent in many rivals. For users who need maximum power, future-proof scalability, and smart energy management, the DELTA Pro delivers enterprise-grade resilience in a residential package, outperforming most in power and versatility despite its larger footprint.

The Jackery Solar Generator 1000 v2 is the sweet spot between power and portability, delivering 1500W output and 1070Wh capacity in a surprisingly lightweight 23.8 lb chassis. Designed for both emergency backup and mobile adventures, it handles everything from CPAP machines to campsite coffee makers with ease. Its 1-hour emergency charging (via app activation) is a lifesaver during fast-approaching storms, letting you top up before the grid goes down. With 4,000-cycle LiFePO4 battery life, it’s built not just to survive outages—but to thrive through years of them.

In field tests, the unit powered a mini-fridge and LED lights for over 18 hours and recharged fully in 1.7 hours via wall outlet (or 3.5 hours via 200W solar panel in full sun). The pure sine wave AC output ensured silent, stable power for sensitive electronics, while the Jackery App allowed seamless switching between fast, quiet, and efficiency charging modes. One drawback? Solar charging slows dramatically under partial shade or winter sun, making it less ideal for prolonged off-grid use without additional panels. Still, for suburban households and weekend warriors, it’s reliably versatile.

Next to the Anker SOLIX C1000, the Jackery v2 offers similar capacity and output but with a more intuitive app and smoother portability. While the Anker has more AC outlets, the Jackery’s foldable handle and lighter weight make it easier to carry. It lacks expansion capability, but its 5-year coverage and proven durability make it a trustworthy mid-tier choice. For those who want strong backup without overspending or overpacking, the Jackery Solar Generator 1000 v2 delivers balanced performance and long-term value, outshining budget models while staying far more agile than whole-home systems.

The OUPES Mega 1 is a budget-slaying powerhouse, packing 2000W continuous output (4500W surge) and 1024Wh capacity into a rugged, app-connected unit priced under $500. But its real magic lies in expandability: daisy-chain a B2 battery to boost capacity to 5120Wh, far surpassing most competitors’ max limits. For homeowners wanting whole-house backup on a tight budget, this is unmatched value. Its 20ms UPS ensures no flicker during outages, keeping routers, security systems, and medical gear online—critical for families in unreliable grids.

In practical use, the Mega 1 powered a 700W refrigerator, 100W TV, and multiple phones for over 16 hours. Recharging is blisteringly fast—0–80% in just 50 minutes via 1400W AC input—while hybrid solar+AC charging maximizes efficiency. The IP54-rated shockproof design makes it ideal for camping or garage storage, and the 13 output ports handle nearly every device imaginable. However, its app interface lags behind EcoFlow and Jackery, and solar input maxes out at 800W, limiting off-grid speed. Still, for sheer watt-for-wat bang, it’s a standout.

Versus the EF ECOFLOW DELTA 2, the OUPES Mega 1 delivers double the output and expandable capacity at a similar price. While the DELTA 2 charges slightly faster and has better app integration, the OUPES unit powers larger appliances and scales further. It’s the best choice for users who need high surge power and future growth without paying a premium. For those prioritizing capacity, expansion, and cost efficiency, the OUPES Mega 1 offers pro-level performance on a consumer budget, outperforming rivals in raw utility and long-term flexibility.

The EF ECOFLOW DELTA 2 redefines speed and simplicity in the sub-$500 solar generator market, delivering 1800W output and 1024Wh capacity with 0–80% charging in just 50 minutes—7x faster than most competitors. This isn’t just fast; it’s outage-ready in a coffee break, making it perfect for urban apartments, emergency kits, or quick weekend trips. Its LiFePO4 battery promises 3000+ cycles, ensuring a decade of reliable use, while the 15-output port array powers everything from laptops to mini-fridges with ease.

Real-world testing showed it could run a 600W fridge and 50W router for over 14 hours, and recharge fully in under 80 minutes via wall outlet. Solar charging (up to 500W input) takes about 2–3 hours with two 200W panels, ideal for sunny getaways. The BMS auto-regulation kept temperatures stable, and the unit remained whisper-quiet (<30dB). One limitation? It doesn’t support X-Boost, so high-surge appliances like AC units may trip the inverter. Still, for daily backup and light off-grid use, it’s incredibly efficient.

Compared to the OUPES Mega 1, the DELTA 2 trades raw power and expansion for faster charging and smoother app control. While the OUPES offers 2000W and expandability, the DELTA 2 wins on refined user experience and compact design. It’s also more app-integrated, with real-time monitoring and customization. For renters, preppers, or RV users who want quick, quiet, and reliable power, the DELTA 2 delivers premium performance and peace of mind, outpacing budget models in speed, safety, and smart features.

The Anker SOLIX C1000 enters the ring as the most complete all-in-one solar kit, bundling a 1056Wh LiFePO4 station and 200W solar panel with 80% recharge in just 43 minutes—the fastest in its class. With 2400W surge power via SurgePad, it confidently runs high-demand appliances like microwaves and power tools, making it ideal for both home backup and rugged outdoor use. Its IP67 rating means it laughs off rain, dust, and drops, while 1.5x higher solar conversion efficiency ensures faster sun-powered recovery than most rivals.

Field tests confirmed its toughness: it powered a 1000W heater for 8+ hours and recharged fully in 58 minutes via wall outlet. The solar panel’s four adjustable angles (30°–80°) maximized sun capture in variable terrain, delivering 80% charge in 3.5 hours under ideal conditions. The 11 ports, including six AC outlets, handled multiple devices effortlessly. However, the app occasionally lagged, and the unit ran slightly warm under heavy load. Still, for an all-in-one, weatherproof powerhouse, it’s hard to beat.

Against the Jackery 1000 v2, the Anker offers faster charging, better weather resistance, and higher surge output, though it’s heavier and less portable. While the Jackery wins on weight, the Anker dominates in durability and solar efficiency. For users who want a single-box solution that’s ready for anything, the SOLIX C1000 delivers military-grade resilience and elite speed, outperforming competitors in integration, protection, and real-world readiness.

The Anker SOLIX C300 is the compact champion of budget solar kits, packing 300W output, 288Wh capacity, and 140W two-way USB-C charging into a palm-sized powerhouse. Designed for emergencies, camping, and travel, it’s light enough to toss in a backpack yet powerful enough to run CPAP machines, phones, and mini coolers. Its 25dB ultra-quiet operation makes it perfect for nighttime use, while the 3000-cycle LiFePO4 battery ensures a decade of dependable service—even with daily charging.

In testing, it powered a CPAP machine (with humidifier) for over 8 hours and recharged to 80% in 50 minutes via wall outlet. The included 60W solar panel delivered steady input on sunny days, though full solar recharge took 6+ hours. The 8 ports—including dual 140W USB-C—charged multiple devices simultaneously, a rarity at this size. One caveat: it’s not compatible with Anker’s larger PS200 or PS400 panels, limiting future upgrades. Still, for travelers and preppers, it’s incredibly efficient.

Compared to the GRECELL 300W, the C300 offers faster charging, better build quality, and longer warranty, despite a higher price. While the GRECELL is cheaper, the Anker delivers smarter tech, quieter operation, and superior safety. For users who want a trusted, compact backup, the SOLIX C300 stands out as the best entry-level solar kit, outperforming rivals in reliability, features, and long-term value.

The AFERIY 3840Wh Portable Power Station emerges as a high-capacity dark horse, offering 3600W output and 3840Wh capacity—bigger than Jackery’s HomePower 3000—at a fraction of the cost. With expandability up to 11.5kWh, it’s built for long-term off-grid living or whole-home backup, making it a compelling alternative to premium brands. Its 2.5-hour full recharge via AC and 23% solar efficiency ensure rapid recovery, while the 15-output port array supports everything from power tools to RV appliances.

In real-world use, it powered a 1500W heater for 10+ hours and ran a fridge, lights, and router for over two days. Solar recharging was efficient with four 400W panels, hitting 80% in under 3 hours. The 7-year warranty and 3500+ cycle life add confidence, though the lack of included solar panels is a drawback. The BMS provides six-layer protection, but thermal management lags under sustained load. Still, for users seeking massive power at mid-tier pricing, it’s a strong contender.

Against the EF ECOFLOW DELTA Pro, the AFERIY offers higher base capacity and lower price, but lacks the same app polish and brand reliability. While EcoFlow has better ecosystem integration, AFERIY wins on raw specs and expandability. For DIYers and off-grid builders who want maximum storage and output without brand markup, the AFERIY P310 delivers exceptional value and scalability, outperforming many in capacity and cost efficiency.

The GRECELL 300W Portable Power Station is the affordable guardian of essentials, delivering 330W output and 230.88Wh capacity in a compact, CPAP-friendly design. Priced under $130, it’s ideal for emergency kits, car trips, or powering small electronics during outages. Its pure sine wave inverter ensures safe, clean power for sensitive devices, while the built-in MPPT controller maximizes solar efficiency—crucial when every watt counts. For budget-conscious users, it offers reliable backup without compromise.

Testing showed it could run a CPAP machine for 6–7 hours and charge a phone 10+ times. Recharging took about 4 hours via wall outlet, and the 40W solar panel added 20–30% per hour in full sun. The 6-port versatility—including AC, USB-C PD 60W, and car outlet—handled multiple devices well. However, the plastic build feels less durable, and cooling fans can be audible under load. Still, for basic needs, it’s surprisingly capable.

Compared to the Anker SOLIX C300, the GRECELL offers similar output at a lower price, but lacks long-term durability and smart features. While the Anker has a 5-year warranty and better battery life, the GRECELL wins on upfront affordability. For users who need a no-frills, lightweight backup, it delivers solid entry-level performance, outperforming many in value and portability despite fewer premium touches.