The green answer to parking - solar powered garages

Here's an environmentally friendly parking concept that has been designed by Tom Cahill.

His design for eco parking incorporates a glazed solar panel canopy which curve over parking lanes.

The canopy houses solar panels to collect energy from the sun to light up the concept car park at night. The canopy also has a green roof panel that collects rainwater as part of a stormwater retention system.

Could we see this as a solution to eco parking at Gatwick?