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With that many facilities over that much space needing so much attention, Steiger and his team faced the task of fully assessing upgrade needs and determining priorities, given their limited resources. They broke the upgrade plan assessment into several components:
Needs analysis. What is the current energy consumption for county facilities greater than 20,000 square feet? “Of the 400-plus buildings, only 14 percent are larger than 20,000 square feet, but they make up 72 percent of the total conditioned space,” Steiger says.
Energy assessment. Perform energy audits and sustainability studies for these facilities.
Controls analysis. “Are current building automation systems (BAS) operating at peak efficiency and effectiveness?” Steiger asks. “Does the county have BAS specifications that meet the needs of the buildings?”
Certification and compliance. “Is the department working toward Leadership in Energy and Environmental Design (LEED) certification of facilities? Is the county meeting local, municipal and state codes and recommendations for energy efficiency?” he asks.
Costing and recommendations. How much will the initiative cos short- and long-term? Provide a detailed plan for incremental implementation of the recommended actions.
“First, we took on the high-profile districts to make sure they are where they need to be,” he says, referring to county’s five buildings over 50,000 square feet, including its courthouse, administration center and internal operations centers.
“Then last year, the city of Orlando passed a new ordinance that required all buildings within downtown Orlando over 50,000 square feet to report their Energy Star ratings,” he says. “Immediately, we had to come up with a plan to make sure they were above (a) 50 (rating), which is average.”
The department’s upgrade plan assessment resulted in a roster of facility upgrades to Orange County facilities that were designed to maximize the buildings’ energy efficiency while judiciously using available resources. The projects included:
• Replace fluorescent fixtures with energy-saving interior and exterior LED fixtures, and seek rebates from utility providers for Energy Star upgrades.
• Establish BAS specifications and criteria, and work with system engineers to tweak HVAC and lighting systems’ start-stop times to maximize efficiency and effectiveness.
• Retrofit plumbing fixtures with low-flow devices, as well as automated hands-free sensors.
• Perform life-cycle replacements of chillers, AHUs and other critical HVAC components in facilities with high-efficiency devices.
• Implement computer-assisted facility management software that enables data mining, trend analysis, project forecasting, and asset life-cycle costing, as well as establishing a facility condition index for each county building.
“By 2014-2015, cost savings realizations began to become apparent,” Steiger says. “Return on investment indicators showed up in the form of reduced utility bills, meeting budgeted expenses without requesting additional funding for shortfalls, and the utilization of savings to accomplish additional projects.
“Since 2013 the division has received over $15,000 a year in rebates from energy providers. This year, over $50,000 in rebates will be earned which is the largest the division has ever received.”
The bottom line tells the success of the upgrades. As a result of the projects, building utility expenditures fell from $8.7 million in 2012 to $6.9 million in 2017, Steiger says, adding, “We’re very pleased with the results. You can see those in the utility data that we’ve reduced expenditures.”
The benefits have gone beyond the bottom line, however.
“An intangible realization came by way of increased customer satisfaction due to a decrease in equipment failures,” Steiger says. “And as additional square footage was added to the maintenance inventory, utility costs remained low.”
Deferred Maintenance: Formulating a Plan
Deferred Maintenance: Setting Priorities