PowerBloc™ is the ultimate solar+battery nano-grid for the home. PowerBloc is a primary power supply that completely insulates the home from any utility outages. PowerBloc’s high-discharge batteries and high-power inverter can supply all loads in a house, including air conditioners or well pumps, regardless of whether the grid is up or down. PowerBloc can even charge an electric vehicle.

Because PowerBloc’s inverter runs the house at all times, the user won’t even notice when the utility power fails. Power conditioning equipment is no longer needed to protect sensitive devices such as flat-screen TVs or desktop computers. The PowerBloc can even seamlessly integrated a generator to assure that the lights stay on even during extended outages or to allow the home to be entirely off the grid.

“YouSolar installed a PowerBloc at our off-grid house in Big Sur. This fully automated nano-grid uses solar energy and a propane generator as energy sources. After years of struggling with other off-grid systems, the PowerBloc has now provided continuous power for months. YouSolar’s technical expertise and customer service are simply excellent.”

Dr. Richard Dauphine, Carmel-by-the-Sea

Power Unit

– One or Multiple Cabinets
– Inverter, 16 kW (36 kW peak)
– LiFePO 4 Battery, 5-100+ kWh
– Grid Rectifier, 3-30 kW
– Intelligent Controller

Solar Array

– Panels Equipped with DC-DC Micro-Converters
– Solar Array Can Be Laid out Freely
– Any Solar Panel Can be Used
– Ability to Retrofit Existing Array
– Array Size, 1–50+ kW

Tablet User Interface

– Comes with System
– Controls PowerBloc
– Forecasts Solar Production
– Rapid Shutdown of System
– Communication with YouSolar

Customer Support

– Trained Personnel
– System Monitoring
– User Help
– Trouble Shooting

Many Sizes Fit All.

The PowerBloc™ is a modular and expandable system. You can choose the size and number of power modules (“blocs”) to fit your needs. Our experts can help you to choose the system that is right for you. You can start small and expand your system as your goals or your needs grow without any design changes to your system. We always leave some room in the cabinet for growth (or you can get a second cabinet if needed.) Want more storage? Just add another battery module. Want to integrate a generator? Add the generator integration module. You can add expansions in any open slot. The arrangement of modules does not matter. Everything is plug- and-play and there are no delicate connectors that can fail.


Just Add Power.

The PowerBloc™ can use any solar panel technology. Each panel comes equipped with a STEP™ DC-DC micro-converter which is mounted to the racking. To maximize the use of each STEP, panels with 350-450 Watt of capacity are optimal. When smaller panels are used, especially in retro-fits, one STEP may be used for two panels. STEP creates a plug-and-play solar array which gives you flexibility in the placement and number of panels.

STEP™ also boosts energy production of the array by 15%. Nice. You can expand your array at any time even with other types of panels for up to 50+ kW of solar power. You can also easily integrate a generator. Simple. Just add it with the EXTEND™ rectifier. You have a small wind turbine or micro hydro? No problem at all. PowerBloc can integrate it all.

Learn More about the PowerBloc™ Technology

The PowerBloc™ Allows You to Use Multiple Power Sources

Big Sur
Arnold Leitner, CEO, shows the YouSolar PowerBloc™ installation on California’s Big Sur coast. (3 min)
Learn more about the Big Sur project

Multi-Source Off-Grid Power

There isn’t anything the PowerBloc™ cannot do. YouSolar installed a PowerBloc™ solar+battery nano-grid at an off-grid house located in Big Sur, California. The primary energy source is solar, but a small propane-powered generator seamlessly integrates for complete reliability. The
system is fully automated. The house sources nearly all of its electric energy from solar.

YouSolar’s energy management system decides on when to start the generator. The system makes that decision based on real-time solar radiation forecasts from YouSolar’s solar forecast service. The PowerBloc™ is monitored over a satellite link but runs autonomously whenever the
link is down.

Goodbye generator. Welcome savings and serenity.

Energy costs from a YouSolar™ PowerBloc™ are a fraction of that from a propane or diesel generator which are traditionally used for backup of off-grid power. At today’s prices, propane or diesel power for home or business costs U.S.$ 1.25 or 0.55 per kilowatt-hour, respectively, while power from the PowerBloc can be as little as U.S.$ 0.20 cents per kilowatt-hour.

Then there is the serenity your PowerBloc™ solar+battery system brings. It puts an end to noxious emissions, noise, vibrations, and you will never run out of fuel.

    Diesel vs. YouSolar

0 decibel
Diesel sound
0 mg / kWh
Diesel NOx emissions
0 mg / kWh
YouSolar NOx emissions
0 g / kWh
Diesel CO2 emissions
0 g / kWh
YouSolar CO2 emissions

World Class Support

No matter where you are, our customer service is there for you 24 hours a day, 7 days a week, because life takes no break. If your system is internet-connected and you have allowed remote monitoring, we probably already know the solution before you know that you have a problem! But in all cases the DIYA™ user interface allows you to trouble shoot the system and our parallel power architecture allows in most cases for the system to run even if a component experiences a failure.