WATTWAY – a new life for roads

May 10, 2016

This is a unique project of the COLAS company. In principle, it is a "solar road", where the solar energy is used like in standard photovoltaic panels.

It is based on exceptionally thin (approximately 7 mm) but resistant panels of polycrystalline silicone, which are able to convert solar energy into electricity. These very fragile photovoltaic cells are embedded in a multiple-layer substrate consisting of epoxies and polymers, which guarantee the elasticity of the resulting panel. This cover is sufficiently transparent for the permeation of sunlight, but it can withstand the pressure of freight transport. The 1.80 x 0.70 m panels have undergone rigorous testing, which proved the suitability for use on roads, including anti-skid properties. The lifetime of the panels should be on a level similar to a standard road.

Electric power produced in this way can be used locally, for example in public lighting and in residential areas. For example, according to calculations, 20 m2 of area covered by the Wattway panels meet power demands of one family, with the exception of heating.

The feasibility of the project is now being tested in a larger number of areas, especially in France. The panels can be installed directly on existing roads.

More at: www.wattwaybycolas.com

COLAS News

Mar 16

Fiscal Year 2021 of the Group

The Board of Directors of Colas met to finalize the 2021 financial statements

Feb 23

Colas joins the #StOpE initiative to end everyday sexism in the workplace

On January 25, 2022, the Colas Group, represented by Frédéric Gardès, Chairman and CEO, joined #StOpE, an initiative dedicated to combatting so-called “everyday” sexism in the workplace. Colas is the first company in the construction sector to sign on to the program.

Dec 16

Colas renews its commitment to road safety

On Wednesday, December 8, Frédéric Gardès, Chairman and CEO of Colas, signed the "Seven Commitments for a Safer Road" with Marie Gautier-Melleray, France’s Interministerial Delegate for Road Safety. Over the last 24 years, Colas has been acting in partnership with public authorities to improve road safety, and will continue to play a strong role in the future with the new agreement.

Dec 6

Kácov bridge

The Kácov bridge project involves the construction of a new three-span road bridge with a total length of approximately 75 m over the Sázava River. COLAS CZ built the new bridge to replace the existing structure, which is no longer suitable due to poor condition, limited load capacity and unsuitable geometric parameters for traffic crossing.

Sep 22

Repair of overpass over Chlumecká Street on Prague Ring Road

Two new bridges will replace obsolete overpass in eastern part of metropolis

Aug 31

Aquisition of the Finnish company Destia

Colas signs an agreement to acquire Destia, a major player in the road and rail markets in Finland

Navigation

© 2022 COLAS CZ, a.s. All rights reserved