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Reports

40 result(s) found

The international implications of national and local coordination on building energy codes: Case studies in six cities

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English
Authors:
Meredydd Evans,
Sha Yu,
Aaron Staniszewski,
Luting Jin,
Artur Denysenko

Building energy efficiency is an important strategy for reducing greenhouse gas emissions globally. In fact, 55 countries have included building energy efficiency in their Nationally Determined Contributions (NDCs) under the Paris Agreement. This research uses building energy code implementation in six cities across different continents as case studies to assess what it may take for countries to implement the ambitions of their energy efficiency goals.

INTERNATIONAL REVIEW OF RESIDENTIAL BUILDING ENERGY EFFICIENCY RATING SCHEMES

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English
Authors:
Jacqui Bonnitcha,
Tom Davies

This project, “International Review of Residential Building Energy Efficiency Rating Schemes”, is the fifth project in a series of work conducted through the Building Energy Efficiency Task Group (BEET), under the International Partnership for Energy Efficiency Cooperation (IPEEC). This project report presents key governance and administrative considerations in the design of energy efficiency rating schemes, available information on the cost-effectiveness and market impact of rating schemes, barriers to uptake of schemes and lessons learned from the implementation of schemes.

The price of innovation: An analysis of the marginal cost of green buildings

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English
Authors:
Andrea Chegut,
Piet Eichholtz,
Nils Kok

Energy efficiency plays an important role in reducing the carbon externality from buildings, but economic analyses of more efficient, green building have thus far ignored input costs. This paper finds that the average marginal cost of green-labeled construction projects is smaller than the value premiums documented in the literature. However, design fees, representing just a fraction of development costs but paid largely up-front, are significantly higher for green construction projects. These projects also take longer to complete.

Overview of State Policies for Energy Efficiency in Buildings

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English
Authors:
Yu Wang

This paper introduces the major state-level regulations and policies for improving energy efficiency in buildings. The purpose of the review is to discuss the challenges and issues in policy implementation and the latest trend in adopting innovative instruments. The implementation of customer efficiency programs increasingly incorporates non-price instruments to encourage participation and deep savings. States pay attention to not only code adoption and update but also compliance and evaluation.

Cost optimal building performance requirements

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English
Authors:
Thomas Boermans,
Kjell Bettgenhäuser,
Andreas Hermelink,
Sven Schimschar and other Ecofys international staff

In the recast Energy Performance of Buildings Directive (EPBD) adopted in May 2010, a benchmarking mechanism for national energy performance requirements was introduced. The purpose of this is to determine cost-optimal levels to be used by Member States for comparing and setting these requirements. The previous EPBD (from 2002) set out a general framework to assess the energy performance of buildings and required Member States to define maximum values for energy delivered to meet the energy demand associated with the standardised use of the building.

Heterogeneous Price Premiums in Sustainable Real Estate? An Investigation of the Relation between Value and Price Premiums

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English
Authors:
Spenser Robinson,
Pat McAllister

Focusing on the voluntary LEED and ENERGY STAR environmental certification schemes in the United States, we investigate whether price premiums exist across all building value categories or are localized to specific value segments. We find that the largest value building segment does not demonstrate any price premiums, while the smallest value categories do. The concentrated supply of eco-labeled offices in large, high-quality buildings likely contributes to this phenomenon.

System dynamics modeling for urban energy consumption and CO2 emissions: A case study of Beijing, China

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English
Authors:
Y.Y. Feng,
S.Q. Chen,
L.X. Zhang

It is clear that city must be part of the solution if an urbanizing world is to grapple successfully with ecological challenges such as energy depletion and climate change. A system dynamics model was developed in this study using STELLA platform to model the energy consumption and CO2 emission trends for the City of Beijing over 2005–2030. Results show that the total energy demand in Beijing is predicted to reach 114.30 million tonnes coal equivalent (Mtce) by 2030, while that value in 2005 is 55.99 Mtce, which is 1.04 times higher than the level in 2005.

Energy consumption and efficiency in buildings: current status and future trends

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English
Authors:
A. Allouhi,
Y. El Fouih,
T. Kousksou,
A. Jamil,
Y. Zeraouli,
Y. Mourad

The building sector is considered as the biggest single contributor to world energy consumption and greenhouse gas emissions. Therefore, a good understanding of the nature and structure of energy use in buildings is crucial for establishing the adequate future energy and climate change policies. Availability of the updated data is becoming increasingly important in order to allow a rigorous analysis. In this paper, recent data on the world energy consumption in both residential and commercial buildings are reported.

From Brown to Green: SUSTAINABLE BUILDINGS IN LEGACY CITIES

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English
Authors:
ROBERT SIMON,
EUNKYU LEE

The research examines the installation of sustainable (green) property development, typified by Leadership in Energy and Environmental Design (LEED) certification in legacy cities in comparison to non-legacy cities. According to the Environmental Protection Agency (EPA), green buildings represent resource-efficient models for construction and operation that are designed to use fewer resources and generate less pollution.

A comprehensive analysis of building energy efficiency policies in China: status quo and development perspective

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English
Authors:
Jun Lia,
Bin Shui

This article is concerned with a comprehensive analysis of building energy efficiency policies in light of improvements in energy performance, living standards and climate change mitigation in China's built environment. In recent years, China has added about 1.7 billion square meters of new floor space in both urban and rural areas on an annual basis. In 2010, the total area of existing buildings in China was approximately 48.6 billion square meters, nearly twice the total of existing buildings areas in the European Union.

Urban Form Compaction and Energy Use Intensity in New Social Housing Neighborhoods in the UAE

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English
Authors:
Khaled Galal Ahmed,
S. M. Hossein Alipour

With increasing global awareness of sustainable development, federal and local authorities in the UAE have developed agendas for energy efficiency in all development sectors, especially for buildings and urban development. With the belief that urban form is integral to urban sustainability, several recently developed single-family social housing neighborhoods in the UAE have shifted from conventional sprawling urban forms to more compact ones. Unfortunately, the impact of this shift on operational and cooling energy use intensities (EUIs) is unknown.

Solar home systems and solar lanterns in rural areas of the Global South: What impact?

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English
Authors:
Xavier Lemaire

Assessing the extent of evidence available relating to the impact of solar energy for households (HHs) in developing countries, surveys are reviewed focusing on the impact of pico‐photovoltaic (e.g., solar lanterns) or solar home systems (SHS) on rural HHs and directly related economic activities of their occupiers. Ninety‐eight documents have been analyzed. Areas of enquiry have included the impact of small individual solar photovoltaic systems on different facets of the life of HHs' occupiers: their education, health, finance, livelihoods, and social relations.

ENERGY PRODUCTIVITY PLAYBOOK Roadmaps for an Energy Productive Future

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English
Authors:
Global Alliance for Energy Productivity

This document is a tool designed to help organizations and policymakers around the world craft their own Roadmaps—published documents that detail the economic, jobs, environmental and security benefits of doubling energy productivity—that clearly articulate a target date for doubling energy productivity and detail achievable policy recommendations necessary to achieving the goal. Clean energy markets around the world are undergoing a revolution as countries, companies and citizens seek paths to a prosperous economic future that also protect the environment.

Improving the economics of building energy code change: A review of the inputs and assumptions of economic models

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English
Authors:
Stephen Berry,
Kathryn Davidson

Building energy code change in Australia, and many other developed nations, is subject to standardised economic tests, with a net present value calculation at the heart of the economic analysis. Although many nations have introduced minimum energy efficiency standards for residential and commercial buildings, increases in stringency have been hindered by limitations to the range of private and societal impacts typically incorporated in regulatory impact assessments.

Assessment of Energy Efficiency Achievable from Improved Compliance with U.S. Building Energy Codes: 2013 – 2030

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English
Authors:
Sarah Stellberg

This report presents the results of a state-by-state analysis of the potential energy and cost savings from improving compliance with building energy codes to 100 percent from current levels. The report also examines 45 statewide compliance evaluation studies, providing a summary of evaluation methods and key findings. Evidence in most states indicates that staggering rates of non-compliance, as high as 100 percent in some jurisdictions, have eroded the gains from energy code development and adoption.

Developing a methodology for the ex-post assessment of Building Energy Efficiency Special Planning in Beijing during the 12th Five-Year Plan” period

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English
Authors:
Yuming Liu,
Tingting Liu,
Binyu Wang,
Minghui Xu

In order to carry out an ex-post assessment of the completed Building Energy Efficiency Special Planning, a comprehensive ex-post assessment methodology is established. The methodology sets out the ex-post assessment criteria from three dimensions and 27 indexes, and apply the Fuzzy Synthetic Evaluation Method to build the ex-post assessment model. Applying the methodology, this research assesses the effectiveness of the Building Energy Efficiency Special Planning in Beijing during the “12th Five-Year Plan” period.

Energy efficiency as a means to expand energy access: A Uganda roadmap

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English
Authors:
Stephane de la Rue du Can,
David Pudleiner,
Katrina Pielli

While energy efficiency can contribute significantly towards improving access to modern energy services, energy sector investments in many developing countries have largely focused on increasing energy access by increasing supply. This is because the links between energy efficiency and energy access, is often overlooked. This oversight of energy efficiency is frequently a missed opportunity, as efficiency is often a very cost-effective energy resource.

Improving building energy efficiency in India: State-level analysis of building energy efficiency policies

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English
Authors:
Sha Yu,
Qing Tan,
Meredydd Evans,
Page Kyle,
Linh Vu,
Pralit L. Patel

India is expected to add 40 billion m2 of new buildings till 2050. Buildings are responsible for one third of India's total energy consumption today and building energy use is expected to continue growing driven by rapid income and population growth. The implementation of the Energy Conservation Building Code (ECBC) is one of the measures to improve building energy efficiency.

The Macroeconomic and Other Benefits of Energy Efficiency

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English
Authors:
Eva Alexandri,
Piet Boonekamp,
Unnada Chewpreecha,
Antonio De Rose,
Roel Drost,
Laurent Estourgie,
Cyrus Farhangi,
Daniël Funcke,
Sanna Markkanen,
Guido Moret,
Hector Pollitt,
Caroline Rodenburg,
Felix Suerkemper,
Sacha Tensen,
Perrine Theillard,
Johannes Thema,
Paul Vethman,
Florin Vondung,
Monique Voogt

This report sets out the positive and negative impacts of improvements in energy efficiency in buildings that could come about through a recast of the Energy Performance Buildings Directive (EPBD). Successive studies have shown that energy efficiency offers many of the most cost-effective options for meeting global emission targets. In many cases, energy efficiency measures have been shown to be ‘negative cost’, meaning that it would be economically advantageous to implement them.

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