The Economics Of Energy Retrofitting In Bordeaux: Calculating Roi – A deep energy retrofit is a whole building analysis and construction process that achieves much greater energy cost savings – sometimes over 50% reduction – than simpler energy retrofits and fundamentally increases the value of the building. Deep energy upgrades create deep energy savings, but not always simultaneously – the measures can be implemented over several years.
Most retrofit approaches are considered “light” because they focus only on upgrading lighting equipment and adding new motors to heating and cooling systems. This excludes larger savings from deeper measures, such as new windows, which can reduce heating and cooling loads to the point where large equipment can be reduced in size and cost. Such interventions are usually not considered because of the high initial cost and higher perceived risk. Those implementing a deep energy retrofit consider all the major capital required in the building over the next few years and plan interventions in this business-as-usual scenario to create greater efficiencies and other benefits. Upgrades can happen all at once or be phased over several years, depending on the budget or funding mechanism. A deep energy upgrade can meet all business-as-usual goals in addition to many other benefits – much more than just an energy upgrade.
The Economics Of Energy Retrofitting In Bordeaux: Calculating Roi
Landlords, investors and occupiers build the case for deep energy retrofits differently, depending on their unique circumstances. Owner-occupiers of larger properties typically have more resources to undertake a comprehensive building analysis and therefore greater ability to reap benefits from efficiency investments compared to owners and occupiers of smaller properties.
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You’ve built the case for a deep energy upgrade, and now it’s time to seize the opportunity. You will need to think about funding for analysis costs and capital improvements. You’ll also need to know the key actions to make your process truly a deep energy upgrade and decide when to implement capital improvements based on your funding mechanism or budget.
A deep energy upgrade requires a multidisciplinary team with a “can-do” attitude, where disciplines can constructively collaborate with each other.
Landlords, investors and occupiers build the case for deep energy retrofits differently, depending on their unique circumstances. Owner-occupiers of larger properties typically have more resources to undertake a comprehensive building analysis and therefore a greater ability to reap benefits from efficiency investments compared to owners and occupiers of smaller properties. Occupiers also enjoy the direct benefits of a sustainable property, while the benefits for investors have been limited by traditional leases, holding periods and the inability to easily get tenants to pay for the benefits they receive.
However, if you consider all the types of value that deep energy retrofits can provide for each party, a deep energy upgrade can make sense for everyone. A key part of building the case for a deep energy retrofit is targeting a building and performing the analysis at the right time and under the right circumstances.
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Using deep power upgrade triggers can significantly improve both the economy and convenience of power upgrades. In some cases, deep energy retrofits may add little or no cost to business-as-usual operations and capital requirements. In other cases, when the organization has a lack of freely available capital, the owners will need to provide financing.
If you have decided not to do a deep energy upgrade, we recommend low-cost and no-cost re-commissioning (or re-commissioning) measures and a simple retrofit.
If you have built a strong case for deep energy retrofitting of a building, but now is not the right time to do the retrofit, then we recommend commissioning and planning a deep energy retrofit when a trigger is expected to occur. We do not recommend a simple retrofit for a building that has been scheduled for a deep energy retrofit analysis within 5 to 10 years (since most simple retrofits take that long to pay for themselves).
A critical step in planning a deep energy retrofit is determining the ideal situations for performing a whole building analysis. For example, if you already have a major end-of-life replacement planned for your building, you may be able to add energy improvements or adjust the planned improvement to make the building more efficient and create value for your organization at a minimal additional cost. cost. Also, as part of your portfolio planning, if you want one or more efficiency measures to be implemented in a portfolio of buildings, it may be best to select an archetypal building for a deep energy retrofit.
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Owners, investors and occupiers will naturally think about financing the upgrade differently depending on their unique circumstances. Below we list some modernization financing mechanisms, both time-tested and emerging. Energy efficiency financing issues are highly dynamic, with new policies and innovative business models emerging constantly.
A deep energy upgrade requires a multidisciplinary team with a “can-do” attitude, where disciplines can constructively collaborate with each other. Design professionals, in particular, should have experience in integrative design (which is much more than running a design meeting or two). A successful deep energy retrofit can produce a long-term strategy for phasing out energy use in a building to make it super-efficient, more desirable to occupants, and more valuable to the owner. We recommend downloading the Deep Energy Change Management Guide to specify the key actions required for a deep energy upgrade. We recommend the Identifying Design Opportunities Guide for a step-by-step approach to achieving integrative design for a deep energy retrofit. Here are some highlights of the deep energy upgrade process:
Often, owners or design teams target a somewhat arbitrary percentage of energy cost savings as part of the retrofit. Instead, imagine if you had no economic and non-technical constraints. Now estimate the lowest possible energy consumption. This is the “Technical Potential” of your building. Then start adding constraints to achieving this potential, as shown in the diagram below, to arrive at ‘Achievable Potential’. The process of adding constraints will allow you to minimize them and understand why you are unable to reach your technical potential.
Many retrofit practitioners will begin their design by immediately thinking about the mechanical and lighting equipment they need. We recommend this approach instead:
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Design teams can use energy modeling as a tool to inform design and predict energy consumption. Enables the analysis required for deep retrofitting: passive design analysis (such as daylighting), energy reductions from package measures and cooling/heating load reductions. In addition, design teams can modify and calibrate the energy model at the post-retrofit building to support verification of savings and ongoing savings.
In conjunction with energy modeling, design teams can use a life cycle cost model to calculate life cycle cost. Life cycle cost analyzes should (but often do not) include examining packages of efficiency measures against a business-as-usual scenario and estimating capital cost savings from equipment reduction. Find out more
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How To Finance The Retrofit Of Municipal Buildings
Received: December 2, 2020 / Revised: January 8, 2021 / Accepted: January 13, 2021 / Published: January 19, 2021
The world has failed to achieve minimum greenhouse gas emissions in the energy use of buildings because energy and emission optimization techniques have not been fully utilized. Thermal comfort is one of the most important issues for both residential and commercial buildings. Of the 40% of global energy consumed by buildings, a large part
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