autoconsumo solar
Installation type

Solar self-consumption with storage using lithium batteries

Location

Binefar (Osca)

Start-up

April 2026

Category
Domestic and residential photovoltaic solar self-consumption, Photovoltaic installations for isolated electrification with batteries, Solar energy
SOLAR SELF-CONSUMPTION INSTALLATION WITH STORAGE USING LITHIUM BATTERIES

Some time ago, few people considered installing a self-consumption system with batteries; batteries were very expensive, and electricity wasn’t so costly, so it was a difficult investment to recoup and seemed to have no clear purpose. With the infamous power outage of April 28, 2025, things began to look different, as many people with solar panels at home were left without power. Without batteries, the system stops working due to energy security issues on the grid. And many who did have batteries were also left without power because they didn’t have an inverter with an emergency backup system, which guarantees a continuous, uninterrupted supply until the grid is restored—that is, as long as the battery lasts. If the battery runs out, there’s no sun, and the grid is down… well, in that situation, we’re left with only candlelight.

The owners of this house were very clear from the beginning that they wanted a photovoltaic solar self-consumption system with lithium batteries, to have greater savings and also the security that whatever happens, they are covered in an uninterrupted supply of electrical energy that will allow them to have unprecedented security, comfort and savings.

 

Today, solar self-consumption systems with batteries are no longer exclusive to wealthy people or solar energy enthusiasts. The price of lithium batteries for off-grid or self-consumption installations has dropped significantly in the last four years. If you run the numbers to calculate the return on investment and payback period for photovoltaic solar self-consumption systems with lithium batteries, I can now say that they add up. The lifespan of lithium batteries is between 6,500 and 8,000 charge cycles, requiring no maintenance or intervention, and offering very high reliability. Previous lead-acid, gel, or AGM batteries have a lifespan three times shorter than lithium batteries, and many of them require maintenance.

Installation elements:

  • 16 solar panels of 590 Wp
  • 3 MPPT 250V 60A
  • 6 Lithium batteries of 5,000 W 48V
  • 1 10,000VA 48V Inverter Charger

At SOMA GENPOWER we specialize in the installation of solar self-consumption systems in homes, industries, farms, etc. in Lleida, Huesca and the rest of the Iberian Peninsula.

Do you need a solar self-consumption system with batteries? Check out our installations section  or contact us and we’ll provide you with information without obligation to give you the best solution for your needs.