“Costing around €3m (£2.4m) and funded mostly by the local authority, the road is made up of rows of crystalline silicon solar cells. … When the path is extended to 100 metres in 2016, its creators hope that it will produce enough energy to power three households.” (http://www.theguardian.com/environment/2014/nov/05/worlds-first-solar-cycle-lane-opening-in-the-netherlands)
€3m for three households seems steep, especially in The Netherlands.
“Major future wind and solar farms should give communities the chance to invest and own as much as a quarter of projects … to cement goodwill with existing supporters of wind power but to win over vocal opponents as well.” (http://www.theguardian.com/environment/2014/nov/03/people-living-near-windfarms-offered-stakes-from-5-pounds-counter-opposition)
Such local residents could ensure a steady supply of wind.
“The winter sun for the first time reached the [Norwegian town of Rjukan’s] market square, thanks to three giant mirrors placed on a mountain.” (http://www.theguardian.com/world/2013/oct/30/giant-mirrors-first-winter-sun-norway-rjukan)
Having just experienced our first power blackout of winter, I’m now saving up foil wrappers.