Since 2000, global onshore wind power generation has averaged 27 annual growth, while the growth rate for solar photovoltaics has been a staggering 42 .

Photovoltaics can be rapidly deployed in rural areas without the need for installing an expensive grid system Bangladesh is a pioneering case in point.

On the other hand, some renewable energy technologies, such as solar photovoltaics, appear to have virtually unlimited sustainable potential, and should be vigorously pursued.

And the chart here shows the difference between the emissions from the regular grid, resulting if you use nuclear, or anything else, versus wind, CSP or photovoltaics.

Building integrated photovoltaics (BIPV) are photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, or facades.

Until recently, photovoltaics were most commonly used in remote sites where there is no access to a commercial power grid, or as a supplemental electricity source for individual homes and businesses.

The advantage of integrated photovoltaics over more common non integrated systems is that the initial cost can be offset by reducing the amount spent on building materials and labor that would normally be used to construct the part of the building that the BIPV modules replace.

We're using energy we can harvest on our roofs, and also on the training pitches, which will be covered with large, flexible membranes, and we will see in the next years an industry coming up with flexible photovoltaics, giving the possibilities of shading against strong sun and producing electric energy in the same time.