…used and their cost. It also includes an evaluation of modern off-grid lighting products. The report concludes that there is significant opportunity for modern off-grid lighting products due to dissatisfaction…
…investment faces the same risk. Some operators are creating structured finance products to cut costs and address more potential investors: Pay-as-you-go solar companies retail solar home systems to power basic…
…their mitigation. Key barriers include insufficient recognition of off-grid lighting products as a complementary, interim option to grid-electricity access, high cost due to the business environment in Ethiopia, low priority…
…they can be found and their costs and benefits among the targeted consumers, who are primarily rural communities not connected to the electricity grid. “Good products alone cannot achieve the…
…comparable yields, but entailed a six-fold higher capital cost and significantly higher recurring battery replacement costs. Thanks to higher energy and optical efficiencies, the LED system provided approximately twice the…
…used and their cost. It also includes an evaluation of modern off-grid lighting products. The report finds that candles were the most commonly used type of lighting. 79% of the…
This Technical Note is Part III in a three-part series examining the proper maintenance and use of integrating sphere light measurement systems. This third Note focuses on low-cost equipment that…
Lithium-ion batteries are cost-effective, high capacity, and capable of long cycle life when properly used in off-grid products. They can, however, present a serious safety hazard if poorly manufactured or…
This Technical Note covers methods for measuring lumen maintenance of LED-based off-grid lighting products, focusing on low-cost methods to evaluate a product’s ability to provide long-term lighting service.
…by 50 small businesses, careful measurements of kerosene lighting use patterns and associated costs for 23 of these businesses, and a subsequent field trial in which 14 of the 23…
