Hot Water & Heating from Photovoltaics
Renewable Energy revolution needs a high proportion of solar and wind energy in electricity grids. With further expansion of volatile sources more power fluctuations need to be compensated. Decentralized demand side management of electrical loads, also for heat, is becoming important. Currently, battery systems are the talk of the town, 5 kWh capacity is typical for a domestic storage battery. In home buildings, however, there are significantly larger capacities available. 15 kWh can be stored in a 300 liter hot water boiler. 120 square meters concrete-floor provide capacity for another 25 kWh for space-heating. Both together provide the eightfold storage capacity of a battery. And this is urgently needed for the transition to renewable energies.
In modern buildings with low heating demand, the energy consumption for space heating is no longer the dominant component. Due to the high insulation standard of new or renovated single-family homes, space heating energy is now equal to the demand of electric loads and water heating.
For these buildings, conventional heat generators equipped with water pipes are oversized. High cost of material and time for installation is no longer justified. Our latest product, the AC•THOR, includes the entire electrical heating control of a building in a single, compact unit.
Hot Water from photovoltaics
With the ELWA products you can use solar power at its best. Generate heat. Simple, efficient and sustainable.
The system uses solar power for water heating in a boiler and optimises the energy consumption of the household with professional controls.
Four choices for your individual solution
As an autonomous solution ELWA completely replaces the conventional heating system in summer. When grid-connected ELWA only uses the excess solar power and raises the self-consumption ratio from 30% to 89%. The systems are designed for your individual needs and can be used in all residential projects.
Hot-water-excess-utilisation in photovoltaic storage systems
Hot-water in off-grid PV-systems
Use the excess solar-electricity
Autonomous hot-water with photovoltaics: the patented ELWA
The products of the ELWA-family are developed and produced in Austria.
Trust in quality Made in Austria.