We cannot lower carbon emissions if we keep producing steel with fossil fuels.
To improve energy security, we need to make infrastructures less reliable.
Historical compressed air systems hold the key to the design of a low-tech, low-cost, robust, sustainable and relatively energy efficient energy storage medium.
Adjusting energy demand to supply would make switching to renewable energy much more realistic than it is today.
Matching supply to demand at all times makes renewable power production a complex, slow, expensive and unsustainable undertaking.
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.
In the nineteenth century, miniature water turbines were connected to the tap and could power any machine that is now driven by electricity
The trend towards small-scale, decentralised power production means that rope transmission might have a place in our energy system again
Jerker line systems can be used to operate water pumps or sawing machines, to forge iron, to process food or fibres, or to make paper.
Long-distance power transmission predates the invention of electricity by almost four centuries.