Net Zero Energy and Innovation – Net Zero Energy Vermont

I tend to think of net zero energy as a mindset rather than a single end point. True, there are those who favor purity, specific definitions and exact measurements whenever the term net zero energy is used, but for a layperson like myself interested in change, there’s value in thinking in terms of a never-ending journey rather than a goal achieved.

One reason is innovation. If net zero energy, or any sustainability practice for that matter, is framed as an end point readily achievable with existing building, efficiency and development practices, what will motivate us to keep trying to do more?

I was reminded of this recently by a post by Chris Milton on Clean Technia entitled “Top Five Clean Tech Gamechangers.” Compiled from the World Wildlife Federation’s “Green Game-changers Databank,” Milton describes five energy innovations in development, but with great potential.

My favorite is the idea of energy from footsteps, by Pavegen. It just seems so fitting to convert the human energy in high footfall areas into clean electricity. Pavegen’s paving slabs generate energy from footsteps to power street lighting, information signage, and other energy needs in shopping areas, commuter stations, stadiums — just imagine! From Milton’s post:

How It Works: Each paving slab on a busy sidewalk gets stepped on over 50,000 times each day. Specially designed rubber slabs (made from recycled tyres) move a minuscule 5mm with each footfall, capturing the kinetic energy and converting it into electricity. This can then be used to power pedestrian lighting, shop displays, etc.

Progress To Date: Field trials are being conducted around the UK in 2010. The company’s aim is to have them installed in Times Square and Disneyland by the end of 2011.

Here’s Pavegen’s product demonstration video from a UK trade show last year.