Single-family house – Brandstötter
Pioneer for solar-electric hot water: ELWA in operation for hot water preparation since 2014.
Facts about the project
- Client/owner/planner
- PV system
- System
- Hot water backup
- Hot water demand
)
Customer declaration:
Since 2014, the ELWA has been in operation, paired with a 2.25 kWp PV system. The installation took place in a 1,000-litre buffer storage with a fresh water station. While we usually do not utilize the optional hot water backup with mains power, this feature proved to be useful during a renovation phase in unfavourable weather conditions.
What initially appealed to me about the ELWA was the simple installation. Now, I appreciate that this solution is not only easy to install but also entirely maintenance-free. I have also acquired the USB interface from my-PV, allowing me to retrieve data and monitor both the PV thermal yield as well as the temperature profile.
On days with fluctuating weather conditions, when I inquire about my neighbour’s thermal solar system and whether it has delivered any results, he often denies it. In the meantime, my ELWA consistently generates 4 kWh of heat, even on overcast weather. It's truly a brilliant solution!
Product details ELWA:
0 – 2,000 W infinitely adjustable
Target temperature adjustable with rotary knob
Works even during power outages
For hot water storage tanks ranging from 100 – 1,000 liters
Self-consumption: 2 W
Efficiency: >99% at rated power
Optional hot water provision: 750 W
)
With the data interface "USB Interface" and the free ELWA software, the yield data can be easily monitored.
)
An integrated data logger allows, among other things, the visualization of the achieved solar yields and the temperature profile.
Weitere Referenzprojekte
)
Solar-powered heating works in heritage buildings! A 150-year-old house is designed for maximum energy self-sufficiency.
Read more...)
Nestled in the picturesque Lavant Valley, a renovated multi-family home demonstrates the full potential of solar power.
Read more...)
Hot water from an off-grid photovoltaic solution instead of an oil-fired heating system – a cost-effective alternative.
Read more...)
Winery cuts gas use with solar heat: my-PV enables smart water heating via surplus PV energy in South Tyrol.
Read more...)
By using the AC ELWA 2, a Dutch homeowner was able to significantly reduce their grid feed-in.
Read more...)
A Dutch homeowner achieves savings by using their PV surplus for hot water instead of feeding it into the grid for a fee.
Read more...