Life Cycle Cost Savings
Life Cycle Costing (LCC) aims to quantify the financial impact of a product over its entire life cycle to assist consumers in making decisions that will save them money over the long term.
GSA's Proving Ground found that indirect evaporative coolers can achieve an 80% energy savings. Payback is less than 15 years on average, for data centers. These units are 57 - 92% more efficient than code-compliant roof-top units.
Contributes to meeting The Guiding Principles for High Performance and Sustainable Buildings
These units are particularly appropriate for dry climate zones (data centers in ASHRAE climate zones 2B - 6B) found in the Western United States. The Green Proving Ground recommends deploying indirect evaporative coolers as follows:
Data centers (retrofit and new construction) -- ASHRAE climate zones 2B - 6B
Outside air pre-conditioner (retrofit): ASHRAE climate zones 2B, 3B
Zone cooler (retrofit and new construction): AHSRAE climate zoones 4B - 6B