The buildings sector contributes nearly 40% to global energy-related annual GHG emissions (IEA/UNEP, 2018). Final energy demand from buildings is predicted to increase 50% by 2050 compared with 2015 levels under business as usual scenarios due to rapid urbanisation and the doubling of the built surface area. Effective decarbonization of the buildings sector is therefore critical to meeting the Paris Agreement Goals and exceeding the current level of ambition in Nationally Determined Contributions (NDCs).
Only one-hundred and thirty-six (136) parties have referenced action required by the buildings and/or construction sector in their NDCs. Very few building sector actions included in these NDCs specify mitigation targets, and if fully implemented, currently cover only about 60% of building related GHG emissions (IEA/UNEP, 2018). Very few actions describe targets to move to carbon neutral or net-zero energy building performance, which is necessary for the sector to be on a below 2-degree pathway. Nor do they commonly communicate the potential co-benefits of proposed actions.
More work is needed to increase the coverage and ambition of building sector climate actions. The current scope and ambition of buildings sector commitments are therefore, insufficient to meet the Paris Agreement goals. It is also evident that there is no consistent format being used to describe buildings sector actions in NDCs. This means that it is difficult to assess the scope, ambition and potential effectiveness of Parties commitments. Developing a common format for describing and comparing buildings sector actions in NDCs is therefore necessary.
This guide is designed to address the urgent need for further extending the scope and ambition of building sector actions in NDCs, the opportunities for aligning with commitments made by non-party actors, and the renewed support for successively increasing ambition and implementing actions of NDCs. It provides a simple process for incorporating or updating ambitious and effective building sector actions in Nationally Determined Contributions. It focusses particularly on key actions that are necessary to address and overcome common challenges faced by countries in designing, financing and implementing ambitious and effective actions, and is intended to support the progressive updating of NDCs.
Building from existing policies and commitments, countries can extend the ambition of building sector actions by:
Increasing the scope of existing building energy regulations to include a greater proportion of building types, particularly housing, and to renovation projects;
Increasing energy performance standards for building envelopes, heating, cooling and ventilation systems, and appliances;
Integrate building sector actions with urban land-use planning to enable the decarbonisation opportunities of sustainable mobility choices, reducing urban heat-island effects, and providing scale for integration of distributed renewable energy supply.
This guide is structured around three stages for incorporating such ambitious and effective buildings sector GHG mitigation actions into NDCs: Mapping, Prioritizing and Implementing & Monitoring. Each section focuses on how to achieve ambitious and effective outcomes in the buildings sector. It also links with the evidence base on building sector actions, tools and resources offered by GlobalABC member organisations.
In response to feedback, high-income households can reduce their energy use to a larger degree than low-income households (17% vs 3% reduction). This and other insights were gained by two rapid reviews into research, both Australian and International, on digital services and...Read more
Australia's Chief Scientist Alan Finkel points out, in this interview, the need for Australia to develop better storage systems and reflects on the recent report from ACOLA. California Energy Commissioner Andrew McAllister, also warns Australia to pursue demand side...Read more
Research identifies that home design needs to considers both energy efficiency and heat stress resistance. Currently, NatHERS only focuses on energy efficiency. If the building codes are not modified, then house designs which only focus on NatHERS could adversely impact people's...Read more
This Global Status Report documents the status and trends of key indicators for energy use, emissions, technologies, policies, and investments to track the buildings and construction sector, globally and in key regions. Central findings of this report include:
Globally, 32% of total final energy consumption is attributed to the building sector. To reduce energy consumption, energy codes set minimum energy efficiency standards for the building sector. With effective implementation, building energy codes can support energy cost savings and complementary benefits associated with electricity reliability, air quality improvement, greenhouse gas emission reduction, increased comfort, and economic and social development. This policy brief seeks to support building code policymakers and implementers in designing effective building code programs.
This guidebook aims to be a practical resource for governments (ministries of energy, environment, housing, climate change, finance, planning and others), private sector investors and civil society organizations by illustrating how to create a Nationally Appropriate Mitigation Action (NAMA) for energy efficient buildings based on a country-led national strategy, possibly articulated as a Nationally Determined Contribution.
This Global Status Report by the Global Alliance for Buildings and Construction (GABC) reconfirms the significance of building energy consumption as a contributor to global greenhouse gas (GHG) emissions. It also shows that efforts to decarbonise the building sector through the implementation of comprehensive policy frameworks and the deployment of existing energy efficient technologies and building design approaches can deliver positive economic, social, health and environmental benefits.