Energy Efficiency: Lighting

The global exchange for energy efficiency policies, data and impacts

Lighting has been a major energy end-use in the past but today is responsible for only 7% of the electricity used within buildings, thanks to good policy and technology breakthroughs. While lighting efficiency has improved substantially, future opportunities for efficiency improvements are plentiful.


Lighting efficiency has made good progress, and can improve even more


Since 2000, the energy intensity improvements of lighting have delivering energy savings of over 600 PJ in OECD member countries alone.  This is increasingly due to the adoption and development of LED lamps.

There exists further potential for increased uptake of LED, and higher efficiency LED technology, more than doubling today’s average efficacy value. Under the Efficient World Scenario, globally a further 1,300 PJ of electricity could be saved annually by 2040.

	
	Residential	Non-residential	Residential (NPS)	Residential (EWS)	Non-residential (NPS)	Non-residential (EWS)
2017	2.3	4.3				
2020			2.2	2.1	4.7	4.5
2025			1.8	1.6	5.1	4.7
2030			1.8	1.6	5.7	5.0
2035			1.8	1.6	6.2	5.4
2040			1.9	1.6	6.7	5.7



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As part of the IEA Efficient World Strategy, minimum energy performance standards (MEPS) on the efficacy levels (lm/W) of products sold will improve the efficiency of lamps installed; however, regulators will also need to ensure the quality of lamps (lifetime, lumen and colour maintenance) are not overlooked when developing such regulations. Incentives and bulk procurement also have a role to develop markets in emerging economies (such as the Ujala programme in India).

Policy insights


The IEA Efficient World Strategy highlights a range of actions through which governments can enable greater energy efficiency gains for buildings technologies such as lighting.

Explore buildings policies

Explore the data


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Lighting energy use in OECD countries, with and without efficiency

	
	With efficiency	Without efficiency
2000	1.17404649	1.17404649
2001	1.187734642	1.202848368
2002	1.184039527	1.225195004
2003	1.17570592	1.250681063
2004	1.16161931	1.273845824
2005	1.159530076	1.300515766
2006	1.142929443	1.321797166
2007	1.112516226	1.340438535
2008	1.082263829	1.358455741
2009	1.062141507	1.373810328
2010	1.043183162	1.39038211
2011	1.035247162	1.403141063
2012	1.014832543	1.415764272
2013	0.995182932	1.428946617
2014	0.969590171	1.44527667
2015	0.92703147	1.458212717
2016	0.851015992	1.468779324

                
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	Residential	Non-residential	Residential (NPS)	Residential (EWS)	Non-residential (NPS)	Non-residential (EWS)
2017	2.3	4.3				
2020			2.2	2.1	4.7	4.5
2025			1.8	1.6	5.1	4.7
2030			1.8	1.6	5.7	5.0
2035			1.8	1.6	6.2	5.4
2040			1.9	1.6	6.7	5.7
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Show me

	Residential	Non-residential
2000	25.54	31.41
2001	26.15	31.92
2002	26.28	34.12
2003	30.88	38.92
2004	32.61	41.00
2005	40.06	49.43
2006	43.96	50.71
2007	45.37	51.84
2008	45.90	51.92
2009	52.77	56.45
2010	59.32	62.17
2011	65.68	68.96
2012	70.43	75.14
2013	73.01	78.02
2014	75.70	80.14
2015	77.17	81.29
2016	79.76	83.64
2017	80.45	84.44
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Show me

	LEDs	Linear fluorescents	Compact fluorescents	Halogens	Incandescants
2010	68	95	59	15	13
2011	72	96	59	15	13
2012	75	97	59	15	13
2013	79	98	59	15	13
2014	83	98	60	15	13
2015	86	99	60	15	13
2016	90	100	60	15	13
2017	96	101	60	15	13
2020	110	103	61	15	13
2025	130	106	62	15	13
2030	144	108	63	16	13
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	LEDs	Fluorescents	Others
2010	1.4605928	37.309126	61.2302812
2011	1.7220027	41.5009499	56.7770474
2012	4.1307861	49.5617957	46.3074182
2013	5.9550862	56.9273817	37.1175321
2014	10.3417414	58.8118854	30.8463732
2015	17.3676845	58.5344684	24.0978471
2016	30.668856	52.1146178	17.2165262
2017	33.3612537	50.7055484	15.9331979
2025	65.7302747	29.5607544	4.7089709
2030	80.2183897	17.297783	2.4838272
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Tracking Clean Energy Progress on lighting: 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.

2016 and 2017 were a critical turning point for energy-efficient lighting, with sales of light-emitting diodes (LEDs) reaching one-third of market sales, thanks to major reductions in costs, improved quality and greater options for lighting applications. Sales of LEDs are on track to meet the SDS target, although this will still require a 250% increase in LEDs’ share of sales by 2030.

Read more...

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