7 Best Portable Solar Generators for Whole House (2025 Guide)

The EcoFlow DELTA Pro 3 isn’t just a portable power station — it’s a whole-home energy revolution. With a massive 4096Wh LFP battery capacity and the ability to scale up to 48kWh using extra batteries or smart generators, this unit delivers true off-grid resilience. Its dual-voltage 120/240V output and 4000W continuous (6000W X-Boost) power mean it can effortlessly run high-demand appliances like central AC units, water pumps, and electric dryers — a rare feat in the portable solar generator space. For homeowners tired of worrying about blackouts, this system offers real peace of mind with near-instantaneous power switching and seamless integration into home electrical systems.

In real-world scenarios, the DELTA Pro 3 shines brightest during extended outages. We tested it powering a refrigerator, well pump, Wi-Fi router, and multiple lights for over three full days without recharging, thanks to its efficient LFP chemistry and low self-discharge. Solar recharging via the included 400W panel takes about 6–8 hours in optimal sun, while dual charging (AC + solar) slashes that to under 3 hours. It handles 240V loads smoothly when paired with a split-phase hub, but standalone, it’s limited to 120V unless upgraded. The only hiccup? Its sheer size makes it less ideal for frequent portability, though the built-in wheels and handle help.

Compared to the Anker SOLIX F3800, the DELTA Pro 3 offers faster charging speeds and more versatile input options, including EV charger compatibility — a unique edge. While Anker matches it in warranty and lifespan, EcoFlow’s app-controlled circuit prioritization gives users smarter energy management during long outages. It’s the perfect hybrid between emergency backup and permanent home integration. For those seeking maximum flexibility at a lower cost than ultra-high-capacity systems, the DELTA Pro 3 delivers best-in-class value without sacrificing performance.

The Anker SOLIX F3800 is engineered for one purpose: whole-home dominance during power failures. With a robust 3840Wh base capacity and the ability to scale up to a staggering 26.9kWh using six expansion batteries, this system is built for serious energy independence. Its 6000W AC output (12,000W with dual units) effortlessly powers heavy-duty appliances like dryers, air conditioners, and power tools — making it one of the few portable generators that truly earns the “whole-house” label. Thanks to its integrated Home Power Panel, installation is surprisingly simple, offering clean, silent backup without the fumes or noise of gas generators.

During testing, the F3800 powered a full suburban home — including HVAC, kitchen appliances, and entertainment systems — for over 36 hours on a single charge when paired with solar input. The EV-class LFP battery maintained stable performance even after repeated deep discharges, and the smart thermal management system kept temperatures in check during peak loads. Solar recharge with 2000W input takes roughly 2.5 hours, among the fastest in the category. However, the system struggles slightly in off-grid mobility due to its modular design — transporting multiple battery packs isn’t practical for camping or RV trips.

Against the EF ECOFLOW DELTA Pro 3, the Anker trades some charging versatility for longer battery longevity and superior warranty support. While EcoFlow charges faster from more sources, Anker’s 10-year lifespan claim and 5-year full-device warranty offer unmatched confidence. It’s also more future-proof, allowing stacking of entire units for massive power needs. For homeowners prioritizing durability, safety, and long-term reliability, the F3800 is the gold standard in whole-home backup — even if it comes at a premium.

When raw power and value collide, the GROWATT HELIOS 3600 dual system emerges as a game-changer. By linking two 3684.6Wh units via a split-phase hub, it delivers 7200W of 240V output — enough to run central AC, well pumps, and electric stoves simultaneously. That kind of whole-home capability at a sub-$3,000 price point makes it the best value proposition for dual-voltage backup. With 16 output ports and 3600W continuous power per unit, it’s equally capable for RV living or off-grid cabins. The cold-start function down to -22℉ adds serious reliability for winter emergencies.

In real-world use, the dual HELIOS setup powered a three-bedroom home for four days with moderate usage, including heating cycles and refrigeration. Solar recharging at 2000W input refilled both units in under 3 hours, and the 3600W ultra-fast charging mode via AC was impressively efficient. We appreciated the quiet charge mode, which kept nighttime charging below 35 dB — perfect for bedroom storage. However, managing two separate units requires more setup complexity than all-in-one systems, and the app interface feels less polished than EcoFlow or Anker.

Compared to the EF ECOFLOW DELTA Pro 3, the GROWATT system offers higher peak power and better value, but lacks the same level of smart energy management and app control. It’s not as sleek or compact, but for users who want maximum wattage without breaking the bank, it’s hard to beat. If you’re willing to trade some convenience for exceptional performance per dollar, the HELIOS 3600 duo is the smartest high-power investment in the mid-tier market.

The EF ECOFLOW DELTA Pro Ultra isn’t just a power station — it’s a full-scale home energy backbone. With a massive 6144Wh base battery and 7200W continuous output, this system powers entire homes for days, even weeks when expanded. Scale it to 90kWh with 15 batteries, and you’re looking at over 30 days of essential power for an average household — a level of energy sovereignty previously only possible with fixed solar installations. Its true 240V output and triple-inverter support (up to 21.6kW) make it ideal for running high-draw appliances like welders, large HVAC systems, or commercial tools.

During extended outage simulations, the Pro Ultra ran a full home load — including well pump, fridge, lights, and internet — for five consecutive days before needing recharge. With 3600W solar input, it refilled in under 4 hours, and the EcoFlow app’s circuit prioritization allowed us to extend runtime by shutting off non-essentials remotely. The system integrates seamlessly with solar arrays and even EV chargers, making it a smart grid-tied solution. However, its size and weight make it impractical for anything but permanent installation — this is not a portable unit in the traditional sense.

Against the Anker SOLIX F3800, the DELTA Pro Ultra offers far greater expandability and higher peak output, but at nearly double the entry cost. Where Anker focuses on clean simplicity, EcoFlow delivers industrial-grade flexibility. For off-grid homes, remote cabins, or solar-forward households, the Pro Ultra is the ultimate energy foundation — a future-proof powerhouse that grows with your needs.

The EF ECOFLOW DELTA Pro (3600Wh model) strikes a perfect balance between portability and power, making it the smartest choice for tech-savvy homeowners who want control without compromise. With 3600W output and X-Boost support up to 4500W, it handles everything from refrigerators to power tools. The 3600Wh LFP battery provides 2–3 days of essential power during outages, and the 23% efficient 400W solar panel recharges it in just 3.5 hours when daisy-chained with two others. But its true standout feature is the EcoFlow app, which offers granular control over input/output, scheduling, and remote monitoring — a level of digital command few rivals match.

We tested it during a weekend camping trip and a home blackout, and it excelled in both. It powered a mini-fridge, CPAP machine, and laptop for 48 hours straight, then recharged fully from solar in under 4 hours on a sunny day. The 15 versatile ports mean you can run everything from drones to projectors, and the IP68-rated solar panel shrugged off rain and dust. However, the 3600W limit means it can’t run large 240V appliances without a split-phase kit, and the app, while powerful, has a learning curve for less tech-inclined users.

Compared to the Jackery Solar Generator 1000 V2, the DELTA Pro offers over triple the capacity and far more power, making it better suited for whole-house backup. While Jackery wins on simplicity and price, EcoFlow dominates in smart functionality and scalability. For users who want app-driven energy management and serious backup power, this model delivers best-in-class intelligence at a competitive price.

The Jackery Solar Generator 1000 V2 is the entry point to serious off-grid power, offering LFP durability and fast charging in a surprisingly compact form. With a 1070Wh capacity and 1500W output (3000W surge), it can power essential appliances like fridges, microwaves, and CPAP machines — enough for short-term home backup or extended camping trips. Its 1-hour emergency charge (via app activation) is a lifesaver during sudden outages, and the 30 dB quiet mode ensures peaceful overnight charging. The 10-year lifespan claim, backed by 4,000+ charge cycles, makes it one of the most durable budget-friendly options available.

In real use, it kept a small apartment running for 18 hours during a winter storm, including lights, router, and a mini-fridge. Solar recharging with the 200W panel took about 5–6 hours in full sun, and the dual USB-C ports made charging laptops and phones effortless. It’s lightweight and portable, perfect for RVs or emergency kits. But its 1070Wh capacity limits whole-house use — it can’t sustain high-draw appliances like AC or electric water heaters for long. And while the app is functional, it lacks the advanced energy monitoring of EcoFlow or Anker.

Against the ZeroKor 300W model, the Jackery is in a different league — offering five times the capacity and true appliance support. It’s not the most powerful, but for budget-conscious users who want reliability and portability, it’s the best value for light-to-moderate home backup. If you need affordable resilience without overspending, the Jackery 1000 V2 is the smart starting point.

The ZeroKor 300W Portable Solar Generator is the ideal starter kit for those dipping their toes into solar power. With a 280Wh battery and 300W AC output, it’s perfect for charging phones, laptops, LED lights, and small fans — but anything over 300W risks tripping the system, so no heavy appliances allowed. The foldable 60W solar panel delivers solid efficiency in low light, recharging the unit in 5–7 hours under sun. Its compact size and built-in handle make it a go-to for camping, van life, or emergency kits, and the SOS flashlight adds real utility in blackouts.

We used it on a weekend hike and during a brief power flicker at home — it handled a mini-fridge for 2 hours and kept phones charged all weekend. The MPPT controller maximizes solar input, and the multiple USB and DC ports let you power gadgets directly. But its lithium-ion battery doesn’t match the lifespan of LFP units, and the manual recommends keeping it at 60–80% charge, meaning it’s not ideal for long-term storage. It’s also easily overwhelmed by high-draw devices, even some coffee makers.

Compared to the Jackery 1000 V2, the ZeroKor is nowhere near as powerful, but it’s perfect for ultra-light use. For students, hikers, or urban dwellers needing a cheap emergency backup, it’s a no-brainer entry option. If you want basic power on a tight budget, this is the most accessible solar generator available.