Energy Efficiency: Heating

The global exchange for energy efficiency policies, data and impacts

Heating is the largest single end-use within buildings, currently accounting for 42 EJ (36%) of total buildings energy consumption. Since 2000, improved energy efficiency of space heating has avoided almost 7 EJ. On average, buildings by 2040 could be over 40% more efficient than they are today.


Heating energy consumption could decline despite an increase in building floor area


Under the Efficient World Scenario, energy consumption for heating could be reduced to under 39 EJ in 2040, despite a 60% increase in floor area across the globe.

The  IEA Efficient World Strategy highlights a range of policy measures that can enable greater space heating energy efficiency gains. The main policy tool to realise this increase in efficiency is the effective introduction of building codes, with requirements to be nearly zero emission buildings for most new buildings in developed economies (similar to the requirements in the new EU Energy Performance in Buildings Directive).  Emerging economies will need to have such standards by 2030 to deliver the EWS scenario outcomes. 

The greater challenge will be to improve heating energy efficiency in existing buildings.

Policy insights


The IEA Efficient World Strategy highlights a range of actions through which governments can enable greater energy efficiency gains for buildings technologies, including those for space heating.

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Explore the data


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	Residential	Non-residential	Residential (NPS)	Residential (EWS)	Non-residential (NPS)	Non-residential (EWS)
2017	23.7	16.5				
2020			24.5	24.4	16.9	16.5
2025			24.6	23.9	17.2	16.2
2030			24.8	23.3	17.7	15.8
2035			25.0	22.4	18.1	15.3
2040			25.1	21.6	18.4	14.8
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	Eurasia	OECD Europe	OECD Americas	World	Africa	OECD Pacific	Middle East	China	India	Other Asia	Latin America
2000	0.0279	0.0149	0.0106	0.0119	0.0077	0.0082	0.0045	0.0062	0.0059	0.0030	0.0023
2001	0.0272	0.0156	0.0098	0.0116	0.0077	0.0079	0.0049	0.0057	0.0059	0.0030	0.0022
2002	0.0257	0.0149	0.0097	0.0111	0.0076	0.0082	0.0046	0.0054	0.0057	0.0029	0.0022
2003	0.0261	0.0153	0.0098	0.0112	0.0076	0.0078	0.0045	0.0053	0.0057	0.0029	0.0022
2004	0.0252	0.0151	0.0094	0.0109	0.0076	0.0076	0.0046	0.0054	0.0056	0.0028	0.0022
2005	0.0234	0.0149	0.0090	0.0104	0.0075	0.0077	0.0048	0.0052	0.0054	0.0027	0.0022
2006	0.0236	0.0146	0.0082	0.0100	0.0075	0.0072	0.0051	0.0051	0.0051	0.0027	0.0022
2007	0.0233	0.0132	0.0085	0.0097	0.0075	0.0070	0.0052	0.0049	0.0050	0.0027	0.0023
2008	0.0230	0.0139	0.0085	0.0097	0.0073	0.0066	0.0045	0.0046	0.0051	0.0026	0.0022
2009	0.0211	0.0134	0.0083	0.0093	0.0072	0.0066	0.0044	0.0044	0.0054	0.0026	0.0021
2010	0.0210	0.0143	0.0081	0.0094	0.0068	0.0067	0.0042	0.0045	0.0050	0.0026	0.0022
2011	0.0215	0.0122	0.0081	0.0088	0.0069	0.0065	0.0041	0.0044	0.0046	0.0025	0.0022
2012	0.0206	0.0127	0.0073	0.0086	0.0069	0.0064	0.0038	0.0044	0.0046	0.0025	0.0022
2013	0.0196	0.0129	0.0082	0.0087	0.0069	0.0063	0.0038	0.0045	0.0045	0.0025	0.0022
2014	0.0198	0.0111	0.0085	0.0084	0.0069	0.0059	0.0038	0.0045	0.0044	0.0025	0.0023
2015	0.0194	0.0113	0.0080	0.0082	0.0068	0.0059	0.0039	0.0046	0.0043	0.0025	0.0023
2016	0.0191	0.0111	0.0079	0.0080	0.0067	0.0059	0.0040	0.0042	0.0041	0.0025	0.0022
2017	0.0188	0.0108	0.0078	0.0078	0.0066	0.0058	0.0039	0.0042	0.0040	0.0025	0.0022
2020	0.0174	0.0099	0.0072	0.0071	0.0063	0.0053	0.0036	0.0041	0.0035	0.0023	0.0021
2025	0.0156	0.0088	0.0064	0.0060	0.0056	0.0046	0.0033	0.0038	0.0028	0.0021	0.0020
2030	0.0140	0.0077	0.0057	0.0051	0.0049	0.0040	0.0031	0.0034	0.0023	0.0019	0.0018
            
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              "title": {
                "text": "Energy performance of space heating and water heating"
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	Residential	Non-residential
2000	22.88	13.65
2001	24.00	14.38
2002	25.38	15.87
2003	26.58	17.15
2004	27.09	18.45
2005	26.76	20.13
2006	27.22	22.04
2007	29.86	25.57
2008	30.70	28.16
2009	31.79	30.94
2010	31.34	31.49
2011	33.54	33.78
2012	32.01	32.79
2013	33.88	35.14
2014	37.12	36.89
2015	37.58	36.65
2016	39.66	36.94
2017	41.81	37.64
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Sales of heating technologies

	Renewables	District heating and cooling	Heat pumps	Conventional electric equipment	Fossil fuel equipment
2010	6.527	9.995	2.128	24.493	56.858
2011	6.992	10.661	2.064	24.234	56.048
2012	6.399	13.491	3.947	21.961	54.203
2013	7.044	11.721	2.657	23.162	55.416
2014	7.552	14.409	2.356	22.267	53.416
2015	7.892	14.015	2.326	24.546	51.222
2016	8.030	12.136	2.554	24.890	52.390
2017	8.017	10.849	2.545	25.984	52.606
2025	11.629	10.017	5.823	31.424	41.106
2030	13.463	10.326	7.563	34.858	33.790
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Note: excludes traditional use of biomass.

 

Tracking Clean Energy Progress on heating: Not on track

The IEA’s newly-enhanced Tracking Clean Energy Progress provides a comprehensive and rigorous assessment of a full range of energy technologies and sectors that are critical in a global clean-energy transition.

Sales of heat pumps and renewable heating equipment have continued to increase by around 5% per year since 2010, representing 10% of overall sales in 2017. Fossil-fuel equipment, however, still represents 50% of sales; less-efficient, conventional electric heating equipment represents another 25%. To meet the SDS target, the share of heat pumps, renewable heating and modern district heating needs to reach more than one-third of new sales by 2030.

Read more...

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