All-Electric Multi-Tenant Mixed Use Complex
Striving towards a 20% reduction in energy use over five years
- The complex includes two towers—one constructed in 1981, the other in 1984—and comprises 2 million square feet of office, retail, restaurant, and television studio space. Electricity is used for both cooling and heating.
- Property management had previously engaged us to optimize their HVAC system performance through retro-commissioning, but they understood monitoring-based commissioning (MBCx), could find and validate additional energy savings.
- Furthermore, the building owner had voluntarily committed to reduce annual energy use by 20% over five years; property management had to pursue multiple initiatives to meet the goal.
- With plans to recertify the facility under the LEED Building Operation + Maintenance (O + M) protocol, property management also wanted to boost the ENERGY STAR score to earn more points towards certification.
- Because of the success of the retro-commissioning project, building engineers were skeptical that a sufficiently large amount of additional energy savings remained hidden to justify the new investment in MBCx.
- We were engaged to provide MBCx services in conjunction with the local electric utility’s incentive program.
- By generating continuous HVAC system performance data from the building automation system (BAS), we were able to do our analysis at a much more granular level than we could during retro-commissioning. With access to broader and deeper information, we focused on uncovering both small and large energy-saving opportunities.
- We identified and helped implement four energy-saving measures during the first year of our engagement, reducing annual electricity use by more than one million kilowatt-hours (kWh).
- Building engineers were enthusiastic about having greater insight into HVAC performance because of the new information available to them through the online dashboard we developed for the project.
- Property management was well on its way a 20% reduction in energy use, and the higher ENERGY STAR score contributed additional points towards LEED recertification.
Service AreaMonitoring-Based Commissioning
Commercial Real Estate