The Open Source Solar Fire P90 delivers up to 5 kW of electricity and 40 kW of thermal energy, is built using simple, abundant and non-toxic materials, and requires no foundation in the ground. The frame size is 11.5 x 11.5 metres and the machine requires an area of 16 x 16 metres for revolving. It can produce heat, electricity and direct mechanical energy, making it suitable to manufacture almost anything on your roof or in the garden.
A farm for the future 1 of 3 - BBC documentary on the precient global farming and food crisis, filmed in the UK. Featuring Martin Crawford (Agroforestry Research Trust), Fordhall Farm, Richard Heinberg and others. Topics covered are the influence of oil on the food production, peak-oil, food security, carbon emissions, sustainability and permaculture.