sharing resources

as part of our work to make greentomato a reference point in the green
industry, we undertake research, meet a lot of people and have generally
gathered quite a lot of information about green issues. we would like to
share this information and our network with people and organisations
that would like to do the same with us. let us know if this is of interest to you.

Manufacturing a solar panel consumes more energy than it will ever deliver.

Truth: Electricity generation plants are measured... read more

Manufacturing a solar panel consumes more energy than it will ever deliver.

Truth: Electricity generation plants are measured by the energy yield ratio which is the energy delivered by a system over its lifetime, compared to the energy required to make it. In northern Europe a grid-connected system, with a lifetime of 20 years, produces 4 times the energy required to make (it has an energy yield ratio of 4). In sunnier climes this figure goes up to 7.