Pathways to Low-Carbon Development for the Philippines by Asian Development Bank;

Author:Asian Development Bank;
Language: eng
Format: epub
Publisher: Asian Development Bank Institute
Published: 2017-08-15T00:00:00+00:00

4.4.1 Efficient Lighting

Under this option, magnetic ballast fluorescent lamps and incandescent lamps will be phased out gradually from the market and will be replaced with more efficient compact fluorescent lamps (CFL) and light-emitting diode (LED) lamps. Light bulb energy use will improve from 65 lumens per watt in 2011–2014 to 85–215 lumens per watt in 2015–2050.

The per-unit energy consumption of lighting units starts at 20.5 kilowatt-hours (kWh) per year in 2010. For the reference scenario, the per-unit energy consumption of lighting units will be reduced to 17.0 kWh per year by 2030 and to 8.4 kWh per year by 2050. Compared with the base consumption in 2010, per-unit consumption can be reduced by 46% in 2030 and by up to 71.5% in 2050 (Figure 4.5). More efficient lighting units can potentially reduce GHG emissions by 27.4 MtCO2e from 2020 to 2050. The estimated abatement cost for efficient lighting is $4.7 per tCO2e.

Figure 4.5: Annual per Unit Energy

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