51 Million

lives empowered


13 Million

school-aged children reached with solar lighting


$1.8 Billion

saved in energy-related expenses


21 Billion

productive hours created for working & studying


4 Million

tons of CO2 offset


81 GWh

generated from a renewable energy source

d.light’s Commitment to Social Impact

In order to meet our ambitious social impact goals, d.light adopts a data-driven approach to measuring the impact of our products. The d.light approach to estimating impact (including benefits to health, productivity and well-being) combines sales data, customer feedback and ongoing evaluation of our products in the field. This strategy provides a comprehensive understanding of how access to energy transforms our customers lives. The above graphic, current as of June 30, 2015, represents d.light's social impact and is calculated using d.light’s developing world sales and high-quality research from the United Nations and International Finance Corporation.

d.light’s Approach to Social Impact Measurement

d.light’s impact strategy is based on a theory of change across four areas of well-being: financial freedom, productivity gains, human health, and environmental health. This blueprint guides d.light’s assessment of the customer experience, from the first purchase of a solar lantern to the longer-term impact of a brighter future. To do this, d.light approaches impact measurement in three ways: modeling social impact metrics, monitoring customers, and evaluating customer data. This approach produces a deeper understanding of how solar energy affects households that previously relied on poor quality, expensive, and unhealthy alternatives, such as kerosene, candles and diesel.

Impact Publications

d.light is dedicated to advancing evidence and thought leadership on market-driven social impact. Here you will find impact research, thought pieces, and social impact best practices on the impact of solar energy access.


Thought Pieces