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How much energy does a system generate?
From an economic viewpoint, VELUX solar collectors with the proper dimensions can cover approximately 60 percent of the annual energy needed to heat water in your home – and do it effectively, without recuring costs and without harming the environment.
VELUX solar collectors can also help to heat your rooms, further reducing your annual gas and oil use and energy costs.
Cost of a solar energy system
To determine the cost of a solar energy system, we need to take into account the technical components (collectors, pipe work, storage system, control, pump, expansion tank, solar liquid, accessories) and the installation costs. Grants from local public incentives may be available to offset some of these costs.
VELUX does not offer a complete solar energy system because in the area of storage technology, there are already a number of good solutions.
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We can, however, give you a rough cost estimate for a complete solar energy system for heating domestic water with VELUX in-roof collectors, including installation. See our guideline prices for complete solar packages – both with and without heating support.
Generally, the cost of a solar energy system works out more favourably for new buildings or a pending renovation than for retrofitting. So for all new buildings, it is a good idea to prepare for a solar energy system by laying empty pipes and leaving sufficient free space in the building’s boiler room. VELUX has developed a high-quality pipe work system for this purpose. Made from flextubes, it facilitates a simple, quick and safe connection between VELUX solar collectors and any storage system.
Government promoted
In some countries, state and local governments offer grants for the operation of solar energy systems, giving consumers additional economic benefits for choosing solar energy.