The Traveler’s Building has a heating and cooling system designed in the early 1900s. Despite its age, the HVAC system is efficient; a central condenser loop driven by multiple pumps operating in parallel supplies 90 heat pumps with cold water in the summer and hot water in the winter. The cooling towers were already equipped with well controlled VFDs. Data servers in the building require that the central HVAC run all of the time.
Carbon Lighthouse engineers analyzed the central controls system and the electrical flow on all 8 floors of the Traveler’s Building and designed a new controls algorithm for the central plant. This new controls strategy achieves 90% of the environmental and economic benefits of connecting the 90 separate heat pumps into the central system, but required no major capital improvements and was a mere fraction of the cost.
- 773,808 lbs of C02 reductions
- Annual utility bill savings of $0.18 per sq ft, $11,000/yr for 15 years
- No upfront investment