“Energy efficiency project” means any project, technology, product, service, function or measure, or an aggregation thereof, that:
1. Results in the reduction of energy use required to achieve the same level of service or output obtained before the application of such project, technology, product, service, function or measure, or aggregation thereof; or
2. Substantially reduces greenhouse gas emissions relative to emissions that would have produced before the application of such project, technology, product, service, function or measure, or aggregation thereof.