“What is EUI? Energy use intensity (EUI) is an indicator of the energy efficiency of a building’s design and/or operations. To see if your organization is a candidate for VEEO’s energy savings technology, the first step is a free, non-binding EUI analysis to verify candidacy. To receive your free EUI analysis, VEEO needs 12 months of your electric and gas bills along with your approximate square footage. Clients can submit those bills via our online portal or can fill out a letter of authorization allowing VEEO to request those bills from the utility company on your behalf.