A Phase I ESA does not require actual testing or collection of water, soil, air, or existing structures. It usually includes a site visit, a historical review of the site, a review of nearby facilities, and interviews with past owners and neighbors.
The Phase I ESA must be in compliance with ASTM Standard E1527-05. This standard also defines the qualifications of the environmental professional who conducts the assessment.
Obtain warranty information and a maintenance contract with the system installer for future visits. Some of the technologies such as hydroelectric and wind include moving parts that will need regular maintenance. Solar panels need to be cleaned of bird droppings and snow to operate at highest possible efficiencies. Incorporate these measures into the facility maintenance manual.
If you are considering building-integrated systems that have PV integrated into windows, skylights, canopies, parking shades, or roof tiles, have the manufacturer and contractor do a constructability review. Some glazing manufacturers provide the technical input and work with the team to develop a custom product like BIPV glass laminate panels. (See Resources for more on BIPV.)
Determine an annual energy-cost estimate using your energy model, if developing one for EAc1: Optimize Energy Performance, or by basing it on the estimates of average building energy usage developed by CBECS—see the LEED Reference Guide.
