Community Solar Farm - Coín
100kW community solar farm on agricultural land in Coín — 200-panel ground-mount under a cooperative structure with individual CAU metering and surplus compensation for 12 member families.
By Ben Hayden
Project Overview
The Challenge: Agricultural Land Classification & Cooperative Legal Structure
Twelve rural households in the Coín municipality — scattered across a 3km radius with inadequate roof orientations, old asbestos-cement roof sheets, or simply insufficient south-facing roof area — wanted to participate in solar energy but could not individually install grid-connected systems. The challenge was to identify suitable land for a community ground-mount installation, navigate the Málaga planning and Endesa grid connection process for a 100kW rural installation, and establish a legal cooperative framework that would be fair, sustainable, and transferable when properties were sold.
The Solution
100kW community solar installation serving 12 rural properties through cooperative ownership model. Shared infrastructure bringing affordable clean energy to remote households.
Technical Specifications
- 200 x 500W Trina monocrystalline panels
- Huawei SUN2000-100KTL-M1 commercial inverter
- Cooperative ownership structure (12 families)
- Smart metering and distribution system
- Community energy management platform
Our Installation Process
Land Identification & Planning Pre-Application
We identified a 2,500m² south-facing agricultural plot adjacent to the nearest grid connection point (an existing Endesa low-voltage pole) under a 20-year lease agreement. A pre-application consultation with the Ayuntamiento de Coín confirmed the installation was permissible as a non-residential utility use on suelo rústico under Andalucía's LOUA planning framework, subject to a minor environmental impact declaration.
200-Panel Ground-Mount Installation
200 × 500W Risen Energy panels were installed on ground-mount steel frames across three south-facing rows with optimised inter-row spacing to eliminate winter shading. The Coín location at 250m altitude and 36.6°N latitude allows optimal 30° tilt for maximum annual irradiance. A central SMA Sunny Tripower 100kW three-phase inverter was installed in an IP55 outdoor enclosure adjacent to the Endesa connection point.
Cooperative Legal Structure & Individual Metering
A community energy cooperative (CEL) was established under Spanish cooperative law, with each of the 12 households holding equal shares. Each household's share entitles them to 1/12 of the solar generation. Individual smart meters at each home record their allocated solar credit. The cooperative's articles include provisions for share transfer on property sale, ensuring the solar arrangement passes with the property.
PVPC Registration, Boletín Eléctrico & Cooperative Handover
The 60kW installation required a registration process beyond the standard residential CAU: as a collective installation under CEL cooperative structure, the application went through the Delegación de Industria Provincial de Málaga with a formal proyecto técnico — a full technical project document signed by a registered industrial engineer (Ingeniero Industrial Colegiado). The project included structural calculations, single-line electrical diagrams, protection coordination study, and environmental impact statement. The Boletín Eléctrico was issued on commissioning day and the CEL's CIF number was registered as the generating entity with Endesa. The 12 smart meters at each household were validated against the Endesa distribution network's reading system to confirm allocation credits appear correctly on each household's individual bill. The CEL board president and secretary received a complete handover pack including all legal formation documents, technical project, compliance certificates, and the Sungrow monitoring portal credentials for the community's shared access.
Results
€32,000 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 ↗Community energy cooperatives in rural Málaga — Coín, Alhaurín, Cártama — are where the economics are most compelling. Properties typically have more roof space, higher electricity consumption from irrigation pumps and agricultural equipment, and supply contracts that are priced on a commercial tariff. The 60kW system here was a no-brainer once you ran the numbers. The CEL legal structure adds complexity, but that's what we're here for — the 12 families sharing this system aren't paying solicitor rates to figure out the cooperative law.
Frequently Asked Questions
Related Services
LIT services in Coín 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
- Coín, Málaga
- Completed
- May 2025
- Service
- Solar
- Author
- Ben Hayden
