Solar PV, Battery Storage & Daikin Ducted AC — Beachfront Villa, San Pedro de Alcántara (Marbella)

One Beachfront Villa, Three Systems, One English-Speaking Team

This luxury villa sits directly on the seafront in San Pedro de Alcántara, on the western side of Marbella. The owners wanted to do three things at once: generate their own electricity from the sun, store it so the home keeps running on solar power into the evening, and add modern, quiet air conditioning that runs on that same self-generated power rather than expensive grid electricity.

Rather than juggle separate solar installers, battery specialists and an air conditioning company — each with their own paperwork, in Spanish — the owners chose Agua Therm to design and deliver the whole package under one roof. Our English-speaking team handled the rooftop solar, the battery and hybrid inverter, and the Daikin ducted air conditioning as a single, coordinated project.

The result is a property that makes its own power during the day, banks the surplus in two Deye battery modules, and uses that stored energy to cool the villa through Daikin ceiling-concealed ducted units — exactly the kind of joined-up, self-consumption-first system that makes sense for a Costa del Sol home with this much sunshine.

Solar PV — Two Roofs, One Array

Few villas have a single clean roof plane large enough for a meaningful array, so we split the solar across the two roof types this property offered:

Battery Storage & Hybrid Inverter — Deye

Solar alone only helps while the sun is up. To make the most of it, we paired the array with battery storage and a hybrid inverter so surplus daytime solar is banked and released in the evening:

Daikin Ceiling-Concealed Ducted Air Conditioning

The final piece of the package is the cooling — and crucially, it runs on the same solar-and-battery power the rest of the system generates:

Project Highlights

Scope of Works

• Supply and installation of 500 W monocrystalline solar panels across the terracotta pitched roof
• Second solar sub-array on the flat roof on aluminium tilt frames
• Supply and installation of 2× Deye SE-G5.1 Pro-B lithium battery modules (~10.2 kWh total)
• Deye hybrid inverter configured for solar self-consumption with battery and grid management
• DC isolation and Tengen DC breakers with cleanly dressed DC cabling
• Delivery and installation of Daikin ceiling-concealed ducted air conditioning
• Air conditioning first-fix: insulated flexible ducting, copper refrigerant line-set and control cabling
• System commissioning, including a verified live solar / battery / grid performance check
• Single-team delivery of solar, battery and air conditioning by Agua Therm's English-speaking crew

Coordination Lessons From This Historical Project

• The historical project coordinated solar PV, battery storage and air conditioning as one design
• An English-speaking team that explains the system, the controls and the paperwork in plain English
• Self-consumption-first design: your solar powers the home and the AC before anything is bought from the grid
• Clean, serviceable installations — tilt-frame flat-roof mounting, dressed DC cabling, concealed ducted AC
• Deep Costa del Sol experience with beachfront properties, terracotta roofs and the coastal climate
• For new work, Agua Therm scopes HVAC while LIT separately scopes planned PV, batteries and EV charging

Frequently Asked Questions — Solar, Battery & AC in Marbella