Solar Panels During a Power Cut

Add Battery to Existing Solar System

Yes, you can add a battery to an existing solar system. But you'll often need a new inverter, new cabling and more paperwork.

Are Solar Panels Worth It for a Business in Spain?

Most of the commercial systems we install in Spain pay for themselves in four to five years. But only for a business that runs during daylight. After that, the electricity is effectively free for the two decades our workmanship warranty still covers.

How Many Solar Panels to Charge an Electric Car?

A 20kW solar system in Spain can charge a typical electric car battery in 4 hours. Here's how to size yours.

How to Clean Solar Panels

Emilio Gamaza of Marblanc Solar explains how to clean solar panels safely – including what calima dust and pine pollen do to your system, and why the wrong products can void your warranty.

What’s the ROI for Solar Panels?

Six real Marblanc Solar case studies help explain the ROI on solar panels – and what drives the difference between them.

Running AC on Solar Power

Can solar panels power your AC in Spain? Discover how much solar you need, whether you need a battery, and how to cut your electricity bill to zero.

How Many Solar Panels to Power a House in Spain?

Discover how many solar panels you need to power a house, with a simple DIY calculation and real client examples from homeowners in Spain.

How to Install Solar Panels in Spain

Install solar panels in Spain and learn how to reach a €0 electricity bill with a 10-step guide backed by a real Marblanc Solar case study.

Solar Pool Heating in Spain

We compare four methods to heat your pool with solar, and provide estimates for the monthly electricity bill for each.