20 Solar Panels & 5kWh battery in Marbella
We cut a client’s monthly bill by 80% after installing 20 solar panels at a villa in El Rosario, Marbella.
Free Solar Survey
The free solar survey includes: home visit, drone inspection, 3D shading analysis, savings estimation and custom proposal. Fill out the form and we’ll get back within 1 working day.
About the Project
The client contacted Marblanc Solar after a previous solar installation had not delivered on its promises. Marblanc Solar installed a new 8kW system, which cut the client’s monthly electricity costs by around 80%.
Background
The client’s property was a large villa in the El Rosario urbanisation in Marbella.
The client was referred to Marblanc Solar following a recommendation. They had a pre-existing solar installation but were still paying electricity bills around the €400 mark, and they wanted a second opinion.
The client’s electricity bills were around €800 prior to going solar due to high-power appliances such as a pool heater and air conditioning – so the installation had not fulfilled the promised 80% reduction.
We set a date for a free solar survey, where we carried out a home visit, drone inspection, 3D shading analysis, savings estimation and custom proposal for the client.
During the home visit, it became clear that the pre-existing solar system was not installed correctly, as there were too many panels for the inverter size. The previous installer had also used cable sizes that were too small for the system’s power requirements, leading to excessive voltage drop and a serious safety risk.
It was difficult news to break, but we informed the client they had to remove the old cabling entirely, replace the inverter and install appropriately sized conductors to meet current standards and ensure efficient power delivery.
We presented a custom proposal for a system which would deliver on the promise of reducing bills by 80%.
Equipment Installed
- 20x JaSolar 405W solar panels
- 5kWh huawei solar battery
- 1x Huawei 10KTL solar inverter
- Sunfer energy structure
Solution
The client was reluctant to proceed, following a faulty installation where the installer hadn’t delivered on the promised 80% bill reduction.
We made 3 separate home visits to explain our custom proposal, the hazards of the previous installation, and walk the client through previous Marblanc Solar projects that had delivered on the promised electricity savings.
We mounted the 20 solar panels with a combined capacity of 8.1kW. We went for an east-west setup to maximise solar electricity production in the absence of a large south-facing roof section.
We added a 5kWh battery to reduce electricity bills even further due to nighttime consumption. The 10kWh inverter meant the client could easily add more solar panels to the system in future – without replacing any significant parts.
After installation, we swapped the client’s bill to a new provider offering a feed-in tariff and virtual battery.
We then monitored the client’s electricity usage every day for two weeks. This helped us find inefficiencies in the client’s consumption pattern, and we made improvements using plug timers and optimised circuits to reduce grid consumption as much as possible.
The client was assigned to one of our Monday-Sunday WhatsApp aftercare groups for any future questions and to schedule their first free annual check-ups.
Results
The client was satisfied with the service from Marblanc Solar, in particular our professionalism and reliability. The installation delivered the promised 80% bill reduction. You can see the client’s review on our Google Places profile.
