Airport Energy Efficiency and Cost Reduction (2010) / Chapter Skim
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Pages 13-21
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From page 13... ...
; and the utilization of "occupied/ unoccupied temperature set locks." Other sources noted that the best strategy for implementing temperature settings was to reset thermostats incrementally CHAPTER FOUR ENERGY EFFICIENCY PRACTICES: MANAGEMENT AND OPERATIONS Box 5 Practice Metrics Key Following the title of each practice in chapters four and five, icons representing cost and payback are listed. Icon values are as follows: Low Cost = $ Med Cost = $$ High Cost = $$$ 0–2 year Payback = 2–5 year Payback = 5–10 year Payback = 10+ year Payback = Example: $$⎟ = this improvement has a Medium Cost and 5- to 10-year payback.
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From page 14... ...
. of energy savings, with many commenting that without automation, energy efficiency improvements would not have been identified in the first place.
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From page 15... ...
. Fans -- Cooling Tower $ - $$⎟ Retrofit of cooling tower fans with variable drive was identified by larger airports as an energy efficiency strategy with paybacks ranging from 2 to 5 years and low to medium cost.
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From page 16... ...
WEBLINK -- Energy Efficiency Handbooks These handbooks by the California Energy Commission include comparisons of different types of energy audits and information on identifying energy efficiency projects. http://www.energy.ca.gov/reports/efficiency_handbooks/ O&M Assessment $ - $$⎟ - An O&M assessment seeks to reduce operating costs and improve efficiency by recommending "low-cost changes in O&M practices that can improve building operation" (PECI 1999b, pp.
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From page 17... ...
. Specific projects that warrant commissioning as identified by the PECI include: • All projects that include controls • Pneumatic equipment • Integrated systems • HVAC-related plant equipment and air distribution systems • Lighting sweeps or day-lighting controls • Energy management systems and control strategies • Variable speed drives in motors • Ventilation air and control • Building pressurization control • Refrigeration improvements • Capacity controls for heating and cooling plant equipment (PECI 1998, p.
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From page 18... ...
Energy efficiency benefits resulting from continuous commissioning were reported to be significant with more than $3 million in measured and verified energy savings over a 5-year period by DFW. In studies of this assessment method outside the DFW facility, it was reported that following implementation, "the average measured utility savings are about 20%, with simple paybacks often in less than two years" (Liu 2002, p.
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From page 19... ...
. Energy Efficiency Specific Project Criteria $ - $$ Many survey respondents indicated that design and construction standards at their facility include aspects of energy efficiency.
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From page 20... ...
This communication strategy has proven to raise awareness about energy efficiency issues and provide savings through vigilance on the part of O&M staff. At another airport, energy efficiency program staff has made numerous presentations to stakeholder groups including tenants and are seeing gradual but positive changes in attitudes towards energy efficiency.
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From page 21... ...
• Identify improvements to O&M practices by using systematic assessment for both new and retrofit projects – Methods of systematic assessment include energy audits and O&M assessment – Multiple forms of commissioning can be used depending on project type and scope. • A variety of programs and arrangements are used by airports to guide, implement, and monitor energy efficiency – Highlight energy efficiency within new project criteria – Utilize temporary settings for underused systems and spaces – Include energy efficiency requirements within O&M service contracts.
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