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Compressed Air

Human Powered Air Compressor and Energy Storage System

Andy Lagzdins built and documented a pedal-powered air compressor to run the power tools in his motorcycle workshop.

Ditch the Batteries: Off-Grid Compressed Air Energy Storage

Compressed air energy storage is a sustainable and resilient alternative to chemical batteries, with much longer life expectancy, lower life cycle costs, technical simplicity, and low maintenance.

History and Future of the Compressed Air Economy

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.

Recycling Animal and Human Dung is the Key to Sustainable Farming

Flushing the water closet wreaks ecological havoc, deprives agricultural soils of essential nutrients and makes food production dependent on fossil fuels.

Cars on Hot Air

What makes the car on air revolutionary is not that it runs on air but that it’s very small, light and slow.