The Hybrid-Storage Solution for AC coupled off-grid Photovoltaic Systems.
If used with complying battery inverters, the AC ELWA-F detects over the AC line if excessive power is available. It automatically uses this energy for hot water storage. Otherwise there would be no utilization at all once the battery is fully charged. There is no need of any additional communication wiring.
Charging of the battery storage has priority. Once the battery is fully charged, AC ELWA-F starts using excessive energy for hot water heating. Hot water is by far the least expensive storage. It is a perfect add-on to electro-chemical storage systems.
The AC ELWA-F´s linear power control works, similar to a grid connected inverter, with high-frequency switching power electronics.
Uses excess energy to heat up water
Perfect add-on to electro-chemical storage systems
Mains Voltage 200 -250 V AC
Heating power max. 3.000 W at 230 VAC
Power control Linear frequency curve
Frequency range 47 Hz to 54 Hz
Low frequency setting 0 W 49.000-51.900 Hz
High frequency setting 49.100-52.000 Hz, 0.1 Hz above low frequency setting
Mains connector Single phase, earthed connector, , 230 V, 50 Hz
Line circuit breaker 13 A or16 A
Power cord 2.8 m
Standby-consumption <1.4 W Water pressure max. 10 bar (1MPa) Efficiency >99% at nominal power
Protection class IP21
Operating temperature range 5°C to 40 °C
Display 3 LED’s
Dimensions (LxWxD) 130 x180 x 600 mm including heating rod
Heating rod lenght 45 cm
Heating rod thread 1 ½ Inch
Weight 2kg including cable, without package