SERC’s Lighting Lab recently finished testing efficient DC lighting products for use with off-grid solar home systems, as part of a competition administered by the Global Lighting and Energy Access Partnership (Global LEAP) Awards program. To highlight the awards program, SERC incorporated some of the winning products into a tabletop display illustrating the difference between a solar-powered system with inefficient lighting and one that uses state-of the-art LED lighting and super-efficient appliances. The display was then presented at the Fifth Clean Energy Ministerial (CEM5) conference in Seoul, South Korea, on May 12 and 13, where ministers, energy officials, and observers from more than 21 countries and the European Union were in attendance. This year’s slogan was “Act Together, Think Creative.”
Each system includes a 40 watt (W) solar panel, a charge controller, and a 70Ahr battery. In the “inefficient” system, these power a single 25 W incandescent bulb for five hours a day. In the “super-efficient” system, the same solar panel and battery can power two LED lights, each brighter than the 25 W incandescent, for five hours a day; one radio for five hours a day; one 13 W super-efficient flat panel television for over three hours a day; one 6 W super-efficient fan for four hours a day; and one cell phone charger.
Clearly, the use of high efficiency appliances can greatly enrich people’s lives.
This project was a collaboration between the US Department of Energy (US DOE), the Collaborative Labeling and Appliance Standard Program (CLASP), Lawrence Berkeley National Laboratory (LBNL) and SERC. Our team at SERC designed and built the portable display, while Carolyn McGregor of the US DOE, Matt Jordan of CLASP and Won Young Park of LBNL attended the CEM5 conference and manned the booth.