Adoption of energy-efficient televisions for expanded off-grid electricity service. (2017)

• Record Type: Journal Article
• Authors: Park, Won Young; Phadke, Amol A.
• Is Part Of: Development engineering. Volume 2(2017)
• Page Start: 107
• Page End: 113
• Publication Date: 2017
• Subjects: A ampere -- ABC automatic brightness control -- AC alternating current -- Ah ampere hour -- BOS balance of system -- CCFL cold cathode fluorescent lamp -- cd candela -- CRT cathode ray tube -- DC direct current -- LEAP Lighting and Energy Access Partnership -- IEC International Electrotechnical Commission -- in2 square inch -- kW h kilowatt-hour -- LCD liquid crystal display -- LED light-emitting diode -- LED-LCD LED backlit LCD -- Li lithium -- m2 square meter -- PV photovoltaic -- SHS solar home system -- USB universal serial bus -- V volt -- W watt -- Wp watt peak; DC television -- TV energy efficiency -- Electricity access -- Off-grid electricity service -- Cost-benefit analysis; Technical assistance -- Periodicals; Economic development -- Periodicals; Engineering -- Social aspects -- Periodicals; 338.9105
• DOI: 10.1016/j.deveng.2017.07.002
• Languages: English
• ISSNs: 2352-7285

Abstract

Abstract: Even though they dominate the global television (TV) market, light-emitting diode backlit liquid crystal display (LED-LCD) TVs have received little attention for use with off-grid household-scale renewable energy systems, primarily because of high up-front costs. However, technological advances and price declines mean that these TVs can now provide the same level of electricity service as standard LED-LCD TVs offer but at lower total energy cost. Moreover, LED-LCD TVs are inherently direct-current (DC)-powered devices and therefore well suited for use with off-grid solar home systems. We estimate that DC-powered energy-efficient LED-LCD TVs can decrease the retail purchase price of solar home systems by about 25% by allowing use of 50% smaller photovoltaics and battery capacities than would be needed for the same energy system to power a standard LED-LCD TV. We recommend that policies such as awards, bulk procurement, incentives, and energy labels be considered to facilitate the adoption of these energy-efficient TVs in off-grid settings. Highlights: Energy-efficient LED-LCD TVs can reduce the total cost of solar home systems. Energy-efficiency improvements in LED-LCD TVs means that they can now cost-effectively provide modern energy services. Energy-efficiency improvements in LED-LCD TVs offer the potential to catalyze off-grid market growth. Appropriate policy designs could capture economic and environmental benefits from market-ready display technologies.