Hybrid-Storage Solution for PV ExcessEnergy with flexible control in smart-homes or with battery!
AC ELWA-E communicates over Ethernet with battery storage systems or smart-home controllers.
It minimizes feed-in energy of PV systems by using this energy for hot water or room heating.
Battery storage and electric appliances have priority.
For commecrcial buildings, many AC ELWA's can be controlled simultaneously with intelligent control systems.
This allows optimum energy distribution.
Decentralized hot water storage and production avoids distribution losses ("ring main") and fulfills hygienic standards.
Decentralized AC ELWA-Es provide high solar coverage yields.
For compatible byttery storage and smart home systems see www.my-pv.com.
How AC ELWA-E works
Smart-Homes and photovoltaic storage systems are all the rage. Hardly anyone thinks about the fact that typical PV-systems produce far more energy a day than can be consumed in the house. That means that the battery is fully loaded and that excess-power goes to the grid afterwards.
This is exactly the starting-point for the AC ELWA-E: It communicates with the energy-management system of the building or the battery-management-system. As far as excess energy is detected respectively the management-system clears the AC ELWA-E, energy is stored in hot-water. In this way we can easily add 10 - 20 kWh of extra storage capacity.
In a simple web-interface the installed battery respectively the energy-management-system can be selected.
The desired water-temperature can be adjusted with a knob.
- AC ELWA-E uses energy that cannot be stored in the battery
- Linear power control 0 - 3.000W for maximum self-consumption
- The AC ELWA-E communicates via ethernet with the BMS
- Sinusoidal current consumption (no thyristor), grid compliant
- Hot-Water securing (Boost-Backup) included
- Suitable for multiple battery and energy-management-systems
In case that the installation of the battery or the management-systems should happen at a later stage, but the activation of the AC ELWA-E has already to be made, my-PV has developed an appropriate transition solution.
The Modbus Meter Interface is a link between the AC ELWA-E and the electricity-meter EASTRON SDM630 Modbus (article 3441).
The electricity-meter detects the amount of the excess energy.
|Power||0-100 % linear, HF-switch mode|
|Heating power||0-3,000 W|
|Mains supply||single phase, grounded plug, 230 V, 50-60 Hz|
|Power cord||3 m|
|Efficiency||>99 % at nominal power|
|Cos Phi||0.999 at nominal power|
|Operating temperature range||10°C to 40°C|
|Dimensions (lxhxd)||130 x 180 x 600 mm including heating rod|
|Heating rod length||45 cm|
|Heating rod thread dimension||6/4 inch|
|Certification||CE, TOR D1, TAEV, TAB|
Download assembly manual
|Product weight:||2,40 Kg|