Installation Case: 64kWh Dawnice Battery System Powers a Spanish Home
Location: Alicante, Spain | System: 4 × Dawnice 16kWh batteries + 15kW hybrid inverter + 12kW solar PV
Meet Carlos and his family. They live in a 350m² villa in Alicante, Spain, with a swimming pool, workshop, and home office. Like many homeowners in the region, they faced two persistent problems: frequent short power outages and sky‑high electricity bills during peak evening hours.
Their existing 12kW solar system generated plenty of clean energy during the day, but without storage, most excess was exported for a low feed‑in tariff (≈€0.04/kWh). At night, they had to buy expensive grid power at €0.25‑0.35/kWh, pushing monthly bills over €300.
After evaluating several options, they chose a scalable, parallel battery system from Dawnice. Here’s why, and how it transformed their home energy experience.
The Dawnice Solution: 64kWh of Reliable Storage
- 4 × Dawnice 16kWh LiFePO₄ batteries – connected in parallel for a total of 64kWh usable capacity (80% DoD)
- 15kW hybrid inverter – fully compatible via CAN/RS485 communication
- Integrated with existing 12kW solar array – no wasted sunshine
Why 64kWh? The family’s average daily consumption was 28‑32kWh. With 64kWh storage, they could run the entire home for two full days without any solar input – more than enough to handle outages or cloudy stretches. And because Dawnice supports up to 15 units in parallel, they can easily add more batteries in the future without replacing existing hardware.
Key Dawnice Advantages in This Installation
| Feature | Benefit for This Home |
|---|---|
| Grade A LiFePO₄ cells | 8,000+ cycles = 10+ years of daily use – no battery replacement worries |
| Smart BMS (7 layers) | Overcharge, over‑discharge, short circuit, temperature protection – safe unattended operation |
| Parallel capability (up to 15 units) | Started with 4, can add 11 more later without changing existing setup |
| IP54 rating | Batteries installed in an outdoor garage – dust and water resistant |
| Wide inverter compatibility | Seamless communication with their Growatt inverter |
| 10‑year warranty | Peace of mind with local support available in Spain |
Results After 6 Months
- ✅ Zero blackout impact – During two grid outages (one lasting 9 hours), the home remained fully powered. The switchover was automatic and unnoticeable.
- ✅ Electricity bill reduced by 72% – Monthly cost dropped from ~€320 to under €90. The family now uses stored solar energy every evening, avoiding expensive peak rates.
- ✅ Solar self‑consumption rate increased from 35% to 89% – Almost no excess energy is exported; every kilowatt‑hour is either used immediately or stored for later.
- ✅ Future‑proof – The homeowner plans to add an electric vehicle next year. The system can easily absorb that extra load by adding one more 16kWh battery.
What the Homeowner Says
“I was hesitant at first because of the upfront cost, but Dawnice’s modular approach made it easy to start with 4 batteries and know I can add more later. The installation was straightforward, and the support team answered all my questions in Spanish. Now I don’t worry about outages anymore – and my wife is happy about the lower bills!”
— Carlos M., Alicante, Spain
*This case study is based on a real installation. Details have been shared with customer consent.
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