We cut a client's bill by 96% – over €1,600 a year – after installing 12 solar panels on the terrace of their villa in Vélez-Málaga, Málaga.
A homeowner in Vélez-Málaga came to Marblanc Solar with rising electricity bills and a large villa well suited to self-consumption solar. We designed and installed a 7.2 kWp system of 12 panels on the property’s flat-roof terrace, paired with a hybrid, battery-ready inverter that leaves room to add storage later. The result was a 96% cut in the client’s electricity bill – a saving of just over €1,600 a year.
The client’s electricity costs had climbed to an average of €140 a month, or €1,680 a year, and they wanted to bring that spending under control while making the most of a villa with generous, usable roof space. With Vélez-Málaga’s strong year-round sunshine, self-consumption solar was an obvious fit – and the family wanted a system that could grow with them rather than one they would quickly outgrow.
Our work on installations in Vélez-Málaga, and more widely across the province of Málaga, meant we knew the area and its rooftops well. The project began, as every one does, with a free solar survey: an on-site visit, a drone flight over the roof, a shading assessment across the terrace, and detailed energy modelling to size the system against the household’s real consumption before a single figure went into the proposal.
Miguel Ángel Ruiz Zapardiel carried out the assessment and confirmed the property was a strong candidate, with a large flat-roof terrace and clear southerly exposure. Our energy assessment took into account:
The defining choice on this project was future-proofing. We specified a hybrid, battery-ready inverter rated comfortably above the array – 8.8 kVA driving a 7.2 kWp system – so the client can add a battery whenever they choose, without swapping out the core system. As with our installation in Nueva Atalaya, Benahavís, where a large-capacity battery lets the household store surplus solar and draw on it well into the evening, this system is set up to make that same step a simple upgrade rather than a rebuild. On paper, the proposal projected the average monthly bill falling from €140 to around €6, with an annual saving of just over €1,600.
Our installation team mounted the 12 panels on the villa’s main flat-roof terrace, raising them on Sunfer tilt frames set to a working angle so they face into the sun rather than lying flat – the advantage of a flat roof, where the frame sets the orientation rather than the building. We arranged the array in two banks on the clear part of the terrace, keeping the modules out of the shade thrown by the taller central block and the pergola beams.
All DC and AC cabling was concealed and terminated to current standards, and the MicroRail structure was anchored and sealed to preserve the terrace’s waterproofing, giving a weather-resistant, leak-proof finish built to last.
With the system commissioned, we secured a feed-in tariff backed by a virtual battery, so any surplus generation is credited rather than lost. We then monitored the household’s electricity use daily for two weeks, fine-tuning plug timers and walking the client through the solar app so they could follow generation and consumption for themselves. Finally, we added them to our Monday-to-Sunday WhatsApp group for aftersales care whenever a question comes up.
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: