End of the VAT reduction for a new installation, increase in the cost of materials, smart meters or even lack of sunshine this year: everything seems to be coming together to reduce the efficiency of your photovoltaic panels. Even if it remains interesting to own one, you now have to think about new systems to continue saving money and quickly get a return on your investment.
The solution today seems to involve the installation of batteries, to store the energy produced by the panels. Batteries that are more efficient and less expensive than a few years ago, and which even allow them to be connected to other devices in the house. Example with the Brussels startup WANIT having designed and developed a solution consisting of storing the energy produced by individuals thanks to their photovoltaic panels in domestic hot water first, the excess energy being able to be stored in a small battery. “This system is much more economical and profitable than traditional storage solutions because it promotes 100% self-consumption thanks to its on-board intelligence. During the last Batibouw exhibition, WANIT won the Product Innovation trophy for this innovation awarded by the jury of the Belgian Building Awards – a great recognition from the construction industry”, announces the company.
”Classic photovoltaic installations are very often oversized. The simultaneity between production and consumption of electricity is of the order of 30%, which amounts to saying that a significant part of domestic solar energy must be reinjected into the network instead of being made profitable directly by the one who produces it”, explains Christian Bayet, founder and CEO of WANIT.
The solutions of the future therefore involve this type of solution which makes it possible to operate independently for a large part of the year. “The WANIT solution makes it possible to consume up to 100% of the solar energy produced: firstly for the production of domestic hot water, then for part of domestic electrical needs, thanks to the installation of a compact battery ( from 3 to 5 kWh). The estimated saving on the energy bill for an average household is around 800 to 1,000 euros per year. Given the relatively limited cost of the investment, the amortization period of the installation varies between five and six years depending on the configurations.”, adds the start-up.
