Description

MYPV AC ELWA-F

Hot-water in off-grid PV-systems
And another more: Excess in AC off-grid PV-systems can now be used easily with AC ELWA-F.
Previously, excess energy was completely lost when batteries were loaded. With the AC ELWA-F you use it for hot-water. You reach a far better system utilization.

As simple is hot-water in off-grid systems with battery
The AC ELWA-F – An ingeniously simple solution.
Photovoltaic off-grid systems have always to be dimensioned that they can provide enough energy even under unfavorable solar conditions. This inevitably leads to a shutdown of the solar generator even at good solar irradiation. This energy is lost.

The AC ELWA-F detects via the grid-control of the inverter, if there is excess energy in the off-grid available and uses it for the storage in hot-water. In that way the whole storage capacity in the off-grid system can be scaled up. Energy is used that was wasted until now.

The desired water-temperature can be adjusted with a knob.

Advantages

• AC ELWA-F uses energy that cannot be stored in the battery
• Linear power control 0 – 3.000W for maximum self-consumption
• The AC ELWA-F needs no communication cables to the inverter
• Sinusoidal current consumption (no thyristor)
• For AC off-grid systems with frequency-shift inverters