Solar Installation: 20 Solar Panels in Guadalmina Baja, Marbella

The client owns a substantial villa in Guadalmina Baja, one of Marbella’s established residential areas, and was facing electricity bills averaging €474.32 a month – around €5,691.80 a year. With consumption at that level, they wanted to generate their own power during the day and, just as importantly, store enough of it to draw on through the evening rather than buying expensive grid electricity after dark.

The client had seen our other installations in Marbella – part of our wider portfolio across Málaga province – and booked a free solar survey. This began with an on-site visit and a drone inspection of the roof, followed by a 3D shading analysis, detailed energy modelling and a proposal built around the property’s real consumption pattern.

Our survey engineer Enrique Ferreiro found a property that was demanding on two fronts: high year-round consumption, and a traditional clay-tiled roof made up of several pitched sections at different orientations, wrapped by mature trees and tall palms that cast shade across parts of the roof through the day.

Our energy assessment took into account:

• A complex multi-pitch hipped roof with no single large south-facing plane, requiring panels to be spread across several roof faces
• Shading from the mature trees and palms surrounding the plot
• High annual consumption of €5,691.80 – well above average for a property of this type
• The client’s wish to use stored solar energy in the evening, informing the battery recommendation

The defining challenge was making a single array perform well across that broken roofline. Rather than compromise, we specified a Trigo 700W power optimiser on every one of the 20 panels, so each panel works independently – shaded or differently-angled panels no longer drag down the rest of the string, and the client gets panel-level monitoring across the whole system. Battery storage was built in from the start. As with our 20-panel installation with battery storage in El Rosario, Marbella, where a battery was added to bring bills down further on a home with significant nighttime consumption, the 9.04kWh unit here lets the client store daytime generation and use it into the evening. The proposal modelled a saving of €2,432.98 a year, taking the average monthly bill from €474.32 down to €271.57.