Promethean Power Systems unveiled a prototype of its solar powered refrigeration system at the MIT Emerging Technologies conference.
The company plans to target businesses in emerging economies that need cold storage. In countries where grid electricity is unreliable, companies rely on expensive and polluting diesel back up generators.
Promethean has developed an off-grid solar refrigerator, which uses…
Having been to Las Vegas, Greenbang can testify that using less energy typically means taking one of those weird golf buggy things rather than their own legs to travel the 500 metres from the restaurant to the roulette wheel or seeing how long you can lie motionless beside the pool, contemplating how many free drinks…