We eliminated a client's electricity bill entirely after installing 18 solar panels on their villa in Pedreguer, Alicante - saving over €2,441 a year.
Marblanc Solar installed a 10.8kWp solar system across two roof sections of a rural villa in Pedreguer, Alicante – 18 × 600W panels paired with a full set of power optimisers to handle the property’s complex multi-pitch roof layout. The result: an electricity bill reduced to a monthly credit balance, with projected annual savings of €2,441.64.
The client’s annual electricity spend was €2,420 – above average for a residential property – and the goal was straightforward: reduce that bill as far as possible and move toward energy independence at their rural villa in Pedreguer.
For other installations in Alicante, the starting point is always a free solar survey – an on-site visit combined with drone imaging, shading analysis, energy modelling, and a tailored system proposal based on the property’s actual consumption and roof characteristics.
Survey engineer Miguel Ángel Ruiz Zapardiel carried out the assessment for this property. Our energy assessment took into account:
The roof layout was the defining factor in how the system was designed. With panels across two orientations and real shading risk on the eastern section from surrounding woodland, a standard string inverter configuration would have allowed the weakest-performing panels to drag down the output of the entire array. Our team specified 18 × Huawei SUN2000-600W-P2 power optimisers – one per panel – so that each panel operates independently, shading on one section cannot affect the rest of the array, and production from both roof planes is maximised throughout the day. The proposal modelled an annual saving of €2,441.64, reducing the monthly bill from €201.67 to a credit balance.
Our installation team mounted the panels across both roof sections of the villa – the larger bank on the south-west-facing pitch of the main building, and a smaller group on the east-facing section of the rear wing. Each of the 18 panels was connected to its own Huawei power optimiser, isolating individual panel performance and ensuring that shading from the mature tree line to the east could not suppress output across the wider array. The Huawei SUN2000-10K-LC0 inverter was configured to receive the optimised DC input from both roof planes, running the full 10.8kWp system through a single-phase connection.
All DC and AC cabling was fully concealed within the roof structure, routed cleanly to the inverter position and installed to current REBT/IEC electrical standards. The Sunfer Microrail mounting system was fixed using high-grade chemical resin and waterproof membranes, preserving the integrity of the traditional terracotta tiled roof and ensuring a weather-resistant, long-term finish throughout.
Following the handover, we secured a feed-in tariff with a virtual battery so that surplus energy exported to the grid is credited against future bills. Our team monitored the system daily for the first two weeks – tracking consumption patterns, fine-tuning plug timer schedules to align with peak solar hours, and setting up the Huawei FusionSolar app for the client. The property was also added to our Monday–Sunday WhatsApp aftersales care group, giving the client direct access to the team whenever needed.
Our Free Solar Survey includes: home visit, drone inspection, 3D performance model, two custom proposals and break-even estimations.
Marblanc Solar is the top-rated solar installer focusing on the Costa del Sol and the Costa Blanca in Spain. Hear what our clients say about working with us:
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