ENERGY EFFICIENCY · SELF-CONSUMPTION
8.8 kWp solar PV self-consumption at a mountain home
Installation of 16 modules on the slate roof of a home in the Sierra de Madrid, with panel-level optimisation.
LOCATION
Cercedilla, Madrid
APPLICATION
Residential self-consumption
INSTALLED CAPACITY
8.80 kWp · 16 modules
ANNUAL GENERATION
14,145 kWh
Our contribution
Engineering, installation, permitting and grant applications
The scope covers engineering and validation, mounting structure on a slate roof, electrical installation in compliance with the Spanish Low Voltage Electrotechnical Regulation (REBT), permitting and inspection by the regional industry authority, and documentation for grants.
The project
A mountain home has solar radiation in its favour and its surroundings against it: tall trees all around and a slate gable roof that forces the modules to be spread over roof faces with different orientations.
The installation comprises 16 modules of 550 W on the roof, with a 10 kW three-phase inverter and one power optimiser per panel. On a roof shaded by trees whose shadows move throughout the day and the year, individual optimisation is what prevents a few shaded modules from penalising the whole string.
The installation generates 14,145 kWh a year. KEIKEN handled the engineering, mounting on slate (a roof that demands care with fixing and waterproofing), permitting and grant applications.
Energy Efficiency line
Self-consumption and storage installations for homes, sized to consumption and roof conditions.
Do you have a similar project?
Tell us about your roof and your consumption. We will study the case and propose a solution.
