Cost-efficient sustainability

Utilizing reverse auctions can be a complement to more large-scale market mechanisms like climate exhanges. There is also a host of open source auction implementations that support reverse auctions. TenderSystem, E-Z Auction and iLance are three that can be used for realization of your particular market.

There are many countries that are already using this for energy auctions and there are also emerging private companies in niche areas, like GoGreenSolar, for solar energy projects.