Energy Retrofit Strategies for Multi-family Residential PDF Download

Author: Xiaoran Wang
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 39

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Author:
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ISBN:
Category : Apartment houses
Languages : en
Pages : 48

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Author: Ram Narayanamurthy
Publisher:
ISBN:
Category : Apartment houses
Languages : en
Pages : 238

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Author: James Lyons
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ISBN:
Category : Aparrment houses
Languages : en
Pages : 25

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Multifamily deep energy retrofits (DERs) represent great potential for energy savings, while also providing valuable insights on research-generated efficiency measures, cost-effectiveness metrics, and risk factor strategies for the multifamily housing industry. The Bay Ridge project is comprised of a base scope retrofit with a goal of achieving 30% savings (relative to pre-retrofit), and a DER scope with a goal of 50% savings (relative to pre-retrofit). The base scope has been applied to the entire complex, except for one 12-unit building which underwent the DER scope. Findings from the implementation, commissioning, and short-term testing at Bay Ridge include air infiltration reductions of greater than 60% in the DER building; a hybrid heat pump system with a Savings to Investment Ratio (SIR)> 1 (relative to a high efficiency furnace) which also provides the resident with added incentive for energy savings; and duct leakage reductions of> 60% using an aerosolized duct sealing approach. Despite being a moderate rehab instead of a gut rehab, the Bay Ridge DER is currently projected to achieve energy savings e"50% compared to pre-retrofit, and the short-term testing supports this estimate.

Author:
Publisher:
ISBN:
Category : Apartment houses
Languages : en
Pages : 36

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Author: Robb Aldrich
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ISBN:
Category : Apartment houses
Languages : en
Pages : 24

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While single-family, detached homes account for 63% of households (EIA 2009); multi-family homes account for a very large portion of that remaining housing stock, and this fraction is growing. Through recent research efforts, CARB has been evaluating strategies and technologies that can make dramatic improvements in energy performance in multi-family buildings.

Author: Lori Bamberger
Publisher:
ISBN:
Category : Apartment houses
Languages : en
Pages : 0

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Ensuring the energy and water efficiency of federally subsidized multifamily housing would reduce operating costs, increase building longevity, and offer health and affordability benefits, in addition to reducing carbon emissions. Despite these benefits, several barriers prevent retrofitting from scaling, including the lack of a sophisticated capital market system and regulatory impediments. This paper recommends a variety of HUD initiated actions that will reduce regulatory barriers, promote a capital market that incentivizes retrofits, and cultivate a cross-silo funding stream.

Author: L. Arena
Publisher:
ISBN:
Category : Apartment houses
Languages : en
Pages : 30

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To determine the most cost-effective methods of improving buildings, accurate analysis and prediction of the energy use of existing buildings is essential. However, multiple studies confirm that analysis methods tend to over-predict energy use in poorly insulated, leaky homes and thus, the savings associated with improving those homes. In NREL's report titled 'Assessing and Improving the Accuracy of Energy Analysis of Residential Buildings,' researchers propose a method for improving the accuracy of residential energy analysis methods. A key step in this process involves the comparisons of predicted versus metered energy use and savings. In support of this research need, CARB evaluated the retrofit of a multifamily building in Boulder, CO. The updated property is a 37 unit, 2 story apartment complex built in 1950, which underwent renovations in early 2009 to bring it into compliance with Boulder, CO's SmartRegs ordinance. Goals of the study were to: 1) evaluate predicted versus actual savings due to the improvements, 2) identify areas where the modeling assumptions may need to be changed, and 3) determine common changes made by renters that would negatively impact energy savings. In this study, CARB seeks to improve the accuracy of modeling software while assessing retrofit measures to specifically determine which are most effective for large multifamily complexes in the cold climate region. Other issues that were investigated include the effects of improving building efficiency on tenant comfort, the impact on tenant turnover rates, and the potential market barriers for this type of community scale project.

Author:
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Category :
Languages : en
Pages :

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In 2009, a 37-unit apartment complex located in Boulder, Colorado, underwent an energy retrofit to comply with Boulder SmartRegs Ordinance, a mandate that requires all rental properties to meet certain energy efficiency standards by 2018. The Consortium of Advanced Residential Buildings (CARB), a U.S. Department of Energy Building America team, worked with city planners and building owners to evaluate this program and recently completed a case study evaluating the effectiveness of a collection of retrofit measures.

Author: Lou McClelland
Publisher:
ISBN:
Category : Rental housing
Languages : en
Pages : 348

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