The heat storage hypocaust could keep a room warm for days with just one firing of the furnace.
More and more consumer products are controlled by networked software: what does this mean for energy demand, and exactly who is responsible for increasing consumption?
The expression “estar en la gloria” (to be inside the gloria) means that someone feels happy and comfortable.
The information society promises to dematerialise society and make it more sustainable, but modern office and knowledge work has itself become a large and rapidly growing consumer of energy and other resources
Could we rethink and redesign office equipment, combining the best of mechanical and digital devices?
Solar panels on window sills and balconies can supply more power than you would think.
Directly coupling DC power sources with DC loads can result in a significantly cheaper and more sustainable solar system.
Hydraulic power transmission is very efficient compared to electricity when it is used to operate powerful but infrequently used machines.
From the sixteenth to the twentieth century, urban farmers grew Mediterranean fruits and vegetables as far north as England and the Netherlands, using only renewable energy.
Contrary to its fully glazed counterpart, a passive solar greenhouse is designed to retain as much warmth as possible.
If we want the internet to keep working in circumstances where access to energy is more limited, we can learn important lessons from alternative network technologies.
These days, so many households have a WiFi-router installed that sharing the signal of these devices could provide free mobile internet access across densely populated cities.