Derbigum provides customized innovative and sustainable solutions for roofs and buildings to save energy and costs, produce renewable energy, increase the sustainability as well as decrease the carbon footprint of buildings.
Since the introduction of the feed-in tariffs (FiTs) into the UK, many commercial property owners are investing in micro-generation technologies in order to generate income from their roofs.
Commercial buildings with large flat roofs can be ideal collectors of the sun's energy, but they often cannot support the weight of glass-mounted crystalline photovoltaic (PV) solar modules, without further reinforcement. Additionally, any visible alterations to roofs may require planning permission.
Derbisolar is a building-integrated solution from Derbigum Energies that specifically addresses
these issues. It combines a durable roofing membrane with amorphous silicon PV cells for
generating electricity. Derbisolar can help overcome issues around planning, and offers a
lightweight alternative to crystalline PV modules. The Derbisolar PV technology is ideal for flat
roofs in poor condition and in need of refurbishment. This includes buildings such as
warehouses, supermarkets, factories, retail parks or exhibition centres.
The amount of income generated from an installation will depend on roof size; for example
a building owner with a roof area of 1,000 m2 (11,000 sq. ft.) could expect to generate 50,000
kWh per year resulting in a guaranteed annual income of about £22,000 for the next 25 years.
This is based on the current FiTs and electricity prices. The typical investment payback period for
a roof this size is around seven years, representing an overall return of around 10%.