Projects

Marine Corps Air Station Miramar, San Diego, CA, ASHRAE Energy Audits

Projects

Retro-Commissioning

Davenergy conducted ASHRAE Level 2 Energy Audits and similarly scoped Water Audits. Eight buildings were selected for auditing, including a grocery mart, three office buildings and 4 aircraft hangars, totaling 700,101 square feet. The goal of the audit was to assist MCAS Miramar in achieving the EISA 2007 required 30% energy reductions by providing conservation measures with detailed descriptions, scopes and calculations that could then be executed using O&M, ECIP or other sources of funding. The audit was conducted in several phases, 1) a Preliminary Energy Use Analysis, 2) Site Visit and 3) Analysis and Reporting. Phase 1 consisted of a utility summary and analysis on the most recent 12 months of utility bills. This generated a baseline for the energy/water usage and utility costs, which was used in calculating potential energy savings. The calculated Heating and Cooling Degree Days provided insight to potential Energy/Water Conservation Measures. Annual utility cost was $131,676 for electricity and $87,409 for natural gas. When implemented, the ECM’s will save over $245,000 per year with a simple payback of 5.5 years; a 24% cost savings. The corresponding energy savings of 7,713 MMBtu/yr will result in a 26% reduction in energy intensity, greatly assisting the installation in meeting its base wide goal of a 30% reduction.