German glass company Glas Wagener has launched Solarlux microsolar in the UK, which it said would cut energy bills in buildings.

Solarlux uses micro lamella layers of transparent steel in the glass which let sunlight in when it is needed but keeps heat out in the summer months.

It has been used in projects throughout Europe such as the Naestved Swimming Stadium in Denmark. The building saw heat inflow in summer and heat loss in winter reduced by 60%.

The layers of steel in the glass are positioned so they reflect sun infiltration from high angles but allow sunlight from low angles to pass through the glass relatively unimpeded.

Dave Wyatt, Head of Glas Wagner’s UK operations said: “Because of its micro lamella layering Solarlux provides different levels of sun protection according to need. So when the sun is at its peak, in the middle of the day or in summer months, the microscopic lamellas resist the sun’s rays, preventing the interior of the building from overheating.

“In the winter the angle of the lamellas ensures that light from the low-lying sun is not impeded, and that the interior remains bright.”

The glazing does not requires maintenance or repair costs because the shading system is constructed of transparent steel inside the glass, so once the glass is installed it should require no further attention.