Energy feasibility studies

Pacific Guardian Tower

Existing building HVAC and lighting systems were evaluated to identify and prioritize energy conservation opportunities for this high-rise building in Honolulu. Energy savings from various retrofit alternatives for chillers, chilled water pumps and controls, booster pump system, and outside air intake were evaluated. Control strategies to provide energy efficient equipment operation were identified. Project was completed in 2008.

Ko'olani Tower

Existing building HVAC, plumbing and lighting systems were evaluated to identify and prioritize energy conservation opportunities for this condominium on Oahu. Energy savings from various retrofit alternatives for the condenser water system (including cooling towers, pumps, and controls), booster pump system, and outside air dehumidification and pre-cooling were evaluated. Control strategies to provide energy efficient equipment operation were identified. Project was completed in 2007.

Imperial Plaza

A feasibility study for the Plaza’s central plant chiller replacement, heat pump system, pool and other recreational equipment, garage lighting, booster pump, energy management system and occupancy sensors for residential building common corridors was conducted for this high-rise building on Oahu. The study included detailed electricity monitoring of the chillers, booster pumps, and heat pumps, flow measurements for the chilled water system and hot water system, and the development of a building energy model. Energy conservation measures (ECMs) were evaluated and life-cycle costs for applicable ECMs were provided. Project was completed in 2006.