The owners of a single-storey brick house (120 m²) sought a solar energy solution that would provide full energy autonomy, reliable backup during outages, and low operating costs. The house is heated by a 15 kW heat pump, which is supported by an electric boiler. Additionally, the household includes an electric vehicle, making energy reliability and optimization essential.
The goal was to integrate on-site solar generation, battery storage, and favorable electricity tariffs into a single, efficient energy system.
Solution Delivered
- Installation of a 20 kW hybrid solar power plant
- Integration of a 25 kWh Battery Energy Storage System (BESS)
- System designed to supply all household loads, including heating systems and EV charging
- Configuration for participation in a feed-in tariff scheme
- Optimised energy strategy:
- night-time battery charging from the grid at reduced tariffs
- daytime export of surplus solar energy to the grid
- Turnkey delivery: design, installation, commissioning, and monitoring setup
Results
- The house operates in a fully autonomous mode, with all systems remaining functional during grid outages
- Up to 70% reduction in electricity costs through intelligent energy management
- Up to 12 hours of backup power without the use of generators
- Stable power supply for heating systems and electric vehicle charging
Benefits for the Homeowner
- Up to 70% savings on electricity costs
- Reliable backup power for up to 12 hours
- Safe and autonomous electric heating
- EV charging powered by solar energy
- Estimated system cost: ~USD 22,000
- Expected investment payback period: around 5 years
Location
Ivano-Frankivsk region, Ukraine