Hybrid solar systems combine photovoltaic generation with battery energy storage to unlock capabilities that standard grid-tied systems cannot provide: backup power during outages, peak demand shaving, time-of-use optimisation, and zero-export operation.
As Turkey's grid becomes more complex and business-critical operations demand 24/7 reliability, hybrid systems are increasingly the right solution. Antalya Solar Energy Co. designs and installs complete hybrid systems for commercial, industrial, and residential applications.
Use Cases for Hybrid & Battery Systems
- Backup Power (UPS Replacement): Critical loads (servers, production equipment, medical devices) protected against grid outages without diesel generator running costs.
- Zero-Export Systems: Where grid operator restricts or prohibits export, the battery absorbs surplus solar production. Maximises self-consumption to near 100%.
- Peak Demand Shaving: Industrial clients pay reactive power and peak demand charges. Battery discharges during peak tariff hours to reduce contracted demand and demand charges.
- Time-of-Use Optimisation: Charge battery from solar (or off-peak grid) and discharge during peak tariff hours for maximum arbitrage savings.
- Remote/Off-Grid: Agricultural pumping stations, holiday villas, and construction sites without grid access.
Battery Technologies We Install
| Brand / Model | Chemistry | Capacity Range | Best For |
|---|---|---|---|
| Huawei LUNA2000 | LiFePO4 | 5–200+ kWh | Residential & small commercial |
| BYD Battery-Box HVM | LiFePO4 | 2.56–256 kWh | Residential & commercial |
| CATL TENER | LFP | 500 kWh – 5 MWh | Industrial & utility-scale BESS |
| Pylontech Force-H | LiFePO4 | 14.4–1,000 kWh | Commercial stacking |
System Design Principles
- Battery sizing based on load profile, critical load requirements, and desired backup duration (typically 4–24 hours)
- Hybrid inverter selection: Huawei SUN2000 (5–100 kW residential/commercial), SMA Sunny Island (3-phase backup), Victron Quattro (off-grid/island)
- All systems include BMS (Battery Management System) for cell balancing, temperature protection, and state-of-health monitoring
- Fire suppression and ventilation designed per IEC 62619 and local fire code
- Remote monitoring: SoC, cycle count, temperature, and alarm notification via FusionSolar/SMA Portal
Financial Analysis — Commercial Peak Shaving
A 500 kWp solar + 500 kWh BESS system for a factory with reactive power contract (Reaktif Güç Bedeli) of ₺80,000/month:
- Battery investment added: ~₺5M (500 kWh LFP)
- Annual peak shaving saving: ₺480,000/yr (demand charge reduction)
- Battery payback (incremental): 10.4 years — combined system payback still under 3 years
- Additional backup value: 8 hours of critical production continuity — eliminates diesel generator costs
Installation & Commissioning
FAQs
LiFePO4 (lithium iron phosphate) batteries are rated for 4,000–6,000 full charge/discharge cycles at 80% depth of discharge (DoD). At 1 cycle/day this equates to 11–16 years. Most manufacturers guarantee 70% capacity retention at 10 years.
Yes, in most cases. If you have a compatible string inverter (Huawei, SolarEdge, SMA Sunny Boy) we can add a battery-ready hybrid module or replace the inverter with a hybrid unit. We assess compatibility during a free site survey.
LiFePO4 chemistry is the safest commercial battery technology available — much less prone to thermal runaway than NMC or NCA lithium batteries. All our installations comply with IEC 62619, include BMS protection, temperature sensors, and fire suppression where required by local code.
Some industrial facilities have grid agreements that prohibit exporting electricity. A zero-export system uses a CT clamp and hybrid inverter to continuously monitor grid flow and modulate output to ensure consumption always equals or exceeds generation. Excess solar charges the battery; battery discharges when solar is insufficient. Result: 95–100% self-consumption.
