Apartment Solar - Fuengirola
4kW rooftop solar on a Fuengirola apartment block — community of owners approval under Article 17.4 LPH, shared roof access coordinated, CAU registered for individual autoconsumo surplus compensation.
By Ben Hayden
Project Overview
The Challenge: Shared Apartment Rooftop — Community of Owners Approval Required
Penthouse apartments present unique solar installation challenges: limited roof access rights, shared building structure, and community of owners rules that can block individual solar installations. This Fuengirola penthouse owner had the private use of the terrace roof above — ideal for panels — but the community statutes required approval for any rooftop works. We worked with the client's legal representative to establish that the solar installation qualified as a personal energy improvement within the owner's private terrace space, not a modification to common elements, enabling the project to proceed without a full community vote under Article 17.5 of the Ley de Propiedad Horizontal.
The Solution
4kW rooftop solar system for penthouse apartment. Optimized panel placement for maximum afternoon sun exposure.
Technical Specifications
- 8 x 500W Longi Hi-MO5 panels
- Huawei SUN2000-4KTL-L1 inverter
- Smart monitoring via mobile app
- Optimized east-west configuration
- Rapid shutdown safety system
Our Installation Process
Community Approval Route & Legal Framework
We reviewed the community statutes and confirmed that the installation within the owner's private terrace did not require a community vote under Article 17.5 Ley de Propiedad Horizontal. A formal written notification was sent to the community administrator (required under law) with 30 days for the community to raise objections to the routing of cables through common areas. No objections were raised, and we proceeded with installation.
Panel Layout & Structural Assessment
The terrace flat roof was structurally assessed for panel loading. 8 × 500W panels (4kW total) were arranged in a 20° tilt east-west split to avoid shading from the penthouse upper level and neighbouring building. The split east/west orientation reduces peak output versus a south-facing array but extends the productive hours from 07:00 to 19:00, better matching the owner's daytime-heavy consumption profile.
Installation & CAU Grid Registration
Panels were mounted on low-profile ballasted aluminium frames (no roof penetrations) with cable runs concealed in the terrace perimeter channel. The hybrid microinverter system was installed in the utility room directly below the terrace, connected to the apartment's existing single-phase 25A supply. CAU registration with Endesa was completed within 2 weeks of installation, enabling surplus energy export compensation.
Boletín Eléctrico, Monitoring & Owner Handover
The full Boletín Eléctrico covering the new solar circuit, microinverter, and consumer unit modifications was submitted to the Junta de Andalucía. The Hoymiles monitoring portal was set up on the owner's smartphone: the app shows daily generation by panel (microinverter advantage — individual panel performance visible), total energy generated to date, and estimated CO₂ savings. An alert was set for any panel generating below 50% of expected output for more than 3 consecutive days. The owner was also enrolled in Endesa's net compensation billing, ensuring that exported surplus appears as a credit on monthly invoices.
Results
€1,400 savings/year
Backed by Research
Solar PV performance figures and financial incentives are backed by Spanish law and independent research. These are the facts underpinning every system we design:
1,800+ kWh/kWp annual solar yield in Málaga province
IDAE's solar radiation atlas confirms Málaga receives among the highest irradiance in Europe — enabling solar systems to generate 25–35% more energy per installed kilowatt than equivalent installations in northern Europe.
IDAE — Solar Atlas Spain ↗RD 244/2019 legalised and simplified solar self-consumption in Spain
Spain's Royal Decree of April 2019 abolished the 'sun tax', simplified CAU grid registration, and made surplus energy compensation available — transforming the economics of residential and commercial solar.
BOE — RD 244/2019 ↗20–40% IRPF income tax deduction for solar installation — expires 31 December 2026
Spanish tax law allows residents to deduct 20–40% of solar installation costs from their annual income tax return, capped at €3,000/year per property. This incentive is time-limited and currently expires at the end of 2026.
Agencia Tributaria (Spain Tax Authority) ↗Up to 50% IBI property tax reduction available in most Málaga municipalities
Municipalities across Málaga province offer a 50% reduction in annual IBI property tax for 3–5 years for properties with certified solar installations — a recurring annual saving that compounds over the life of the system.
Diputación de Málaga ↗Frequently Asked Questions
Related Services
LIT services in Fuengirola directly related to this work.
About the Author
Ben Hayden is an English speaking electrician and independent energy advisor based in Marbella, Spain, with over 15 years of electrical experience across Europe. He provides independent energy and electrical checks for overseas property owners and managers across the Costa del Sol — helping clients cut electricity bills, navigate Spanish regulations, and make confident decisions on solar PV, heat pump, EV charger and battery storage projects. Ben advises in plain English on projects where the paperwork is in Spanish and the stakes are high. His writing has appeared in ExpatArrivals, The Olive Press, Euro Weekly News, BuildingTalk and pv magazine.
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Quote ConfiguratorProject Details
- Location
- Fuengirola, Málaga
- Completed
- November 2025
- Service
- Solar
- Author
- Ben Hayden
