Presentation slides from "A Definition Framework for Net Zero Energy" presentation given at the NASA Net-Zero Energy workshop June 5-6, 2012.
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A presentation on a definition framework for Net Zero Energy given at the NASA Net-Zero Energy workshop June 5-6, 2012.
NREL experienced a significant increase in employees and facilities on our 327-acre main campus in Golden, Colorado over the past five years. To support this growth, researchers developed and demonstrated a new building acquisition method that successfully integrates energy efficiency requirements into the design-build requests for proposals and contracts. We piloted this energy performance based design-build process with our first new construction project in 2008. We have since replicated and evolved the process for large office buildings, a smart grid research laboratory, a supercomputer, a parking structure, and a cafeteria. Each project incorporated aggressive efficiency strategies using contractual energy use requirements in the design-build contracts, all on typical construction budgets. We have found that when energy efficiency is a core project requirement as defined at the beginning of a project, innovative design-build teams can integrate the most cost effective and high performance efficiency strategies on typical construction budgets. When the design-build contract includes measurable energy requirements and is set up to incentivize design-build teams to focus on achieving high performance in actual operations, owners can now expect their facilities to perform. As NREL completed the new construction in 2013, we have documented our best practices in training materials and a how-to guide so that other owners and owner’s representatives can replicate our successes and learn from our experiences in attaining market viable, world-class energy performance in the built environment.
It is still early in the collection and analysis of energy performance data, but it is already clear that high-performance commercial buildings—some "almost net-zero buildings"—can be constructed cost effectively, providing productive environments for occupants, reducing operating costs, and enhancing the competitiveness of commercial properties.
Article in the Whole Building Design Guide about the uses and features of metal roofs that meet "cool roof" standards.
The commercial real estate mortgage market is enormous, with almost half a trillion dollars in deals originated in 2015. Relative to other energy efficiency financing mechanisms, very little attention has been paid to the potential of commercial mortgages as a channel for promoting energy efficiency investments. The valuation and underwriting elements of the business are largely driven by the “net operating income” (NOI) metric – essentially, rents minus expenses. While NOI ostensibly includes all expenses, energy factors are in several ways given short shrift in the underwriting process. This is particularly interesting when juxtaposed upon a not insignificant body of research revealing that there are in fact tangible benefits (such as higher valuations and lower vacancy and default rates) for energy-efficient and “green” commercial buildings.
This scoping report characterizes the current status and potential interventions to promote greater inclusion of energy factors in the commercial mortgage process. It includes the results of
a literature review and extensive stakeholder discussions with 40 lenders, owners, service providers, advocacy organizations and others.
This step-by-step flowchart provides information on selecting a control strategy for miscellaneous electrical loads.
This flowchart details steps for selecting a control strategy to reduce plug and process loads. It accompanies the report: "Selecting a Control Strategy for Plug and Process Loads" https://buildingdata.energy.gov/cbrd/resource/1078.
This guidance walks building owners through five steps to obtaining an appraisal that evaluates the energy efficiency benefits
of high performance buildings. This may help obtain favorable terms with a lending institution.
STEP 1: Gather the information a lender or appraiser will need to analyze your property.
STEP 2: Provide contact information for development or retrofit professionals involved with the property.
STEP 3: Ask questions at the time of your loan application.
STEP 4: Review the completed appraisal closely – and objectively.
STEP 5: Ask follow-up questions regarding the appraisal report.
Commercial mortgages currently do not fully account for energy factors in underwriting, valuation and asset management, particularly as it relates to the impact of energy costs on net operating income. As a consequence, energy efficiency is not properly valued and energy risks are not properly assessed and mitigated. Commercial mortgages are a large lever and could be a significant channel for scaling energy efficiency investments.