![]() Study results show that employing solar generation technologies could close the gap between the efficiencies achieved in the study and the 30 percent above the ASHRAE 90.1 -2004 standard. “It is important that policymakers and others realize the economic consequences that imposing mandated targets will have on the development industry.” “With the results of achieving higher efficiency targets differing so greatly across the climate zones, the study reveals that a ‘one-size-fits-all’ approach to mandatory energy reductions does not work in legislation or other mandates,” said Bisacquino. Newport Beach: 15.8 percent in energy savings $169.898.13 cost increase 12.2 year payback. Overall, energy savings, cost increases and payback periods are:Ĭhicago: 23 percent in energy savings $188,523.45 cost increase 8.8 year payback īaltimore: 21.5 percent in energy savings $165,148.13 cost increase 11 year payback ![]() Results across the climate zones vary by more than seven percent, given baseline energy uses in domestic water heating lighting heat generation air conditioning and fans, dampers and HVAC equipment. Using technologies and methods to increase effectiveness, the maximum efficiency reached was 23 percent in the Chicago model. Modeling included enhanced wall and roof insulations varying levels of exterior glazing higher-efficiency window assemblies reduced air infiltration via the installation of an air barrier reduced lighting power densities higher-efficiency HVAC equipment and photovoltaic electricity energy generation. The study was conducted by ConSol, a California-based independent energy-modeling firm, using the Department of Energy’s EnergyPlus v2.2, a building energy simulation program for modeling building energy uses. “Identifying an energy reduction level that is both environmentally responsible and equitable to the developer is essential in protecting the prosperity of commercial real estate.” “The study provides an unbiased insight into the energy targets practical to commercial development today,” said Thomas J. The study concluded that achieving a 50 percent reduction above the standard is not currently reachable. ![]() and Newport Beach, Calif.įindings show that although significant energy efficiencies can be achieved (varying by climate zone), reaching a 30 percent reduction above the ASHRAE standard is not feasible using common design approaches and would exceed a 10-year payback. Using a recently completed four-story, 95,000 square-foot, Class A office building as the prototype, the research modeled the prototype in three climate zones represented by Chicago, Ill. The study was initiated to determine if commercial development could achieve reduction targets of 30-50 percent above the ASHRAE 90.1-2004 standard – the benchmark often cited in legislation and other calls for mandatory reductions. NAIOP, the Commercial Real Estate Development Association, today released a report that demonstrates the levels of energy efficiency that standard office buildings can reach while remaining economically feasible.
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