The building would produce as much energy As it uses in one year. The building will maintain its historic qualities and it will install the newest technologies.
The building will install energy saving geothermal heating and cooling system and solar panels to meet the energy needs of the building. They will also install state of the art lights and wireless controllers, along with windows with solar control film that control how much sun is needed.
Any of the excess energy that is created will be sent to grand junctions electrical grid.
Additional information from: http://coloradoenergynews.com/2011/03/grand-junction-site-of-countrys-first-net-zero-energy-historic-building/