d.light is a social enterprise delivering solar light and power to low-income households without electricity. Its origin lies in an experience of co-founder Sam Goldman, who, as a Peace Corps volunteer in Benin, West Africa, saw a neighbor's boy suffer severe burns in a kerosene-lamp accident. With Ned Tozun, whom he met at Stanford's business school, he founded the company in 2007 from the question, “In an age when we can launch satellites, why do so many people lack even basic electricity?” It first sold solar LED lanterns in India, building warranties and after-sales service to win trust in a market wary of quality. It later expanded from lanterns to home systems, TVs, and smartphones, processing millions of payments a month on its pay-as-you-go platform Atlas. It has sold over 35 million units and is said to have reached about 180 million people in 72 countries. By replacing kerosene, the company estimates it has avoided about 38 million tonnes of CO2-equivalent emissions since 2007.
●●○ medium
There is no confirmed −; independently verified + decide the position (B). No unreachable strike-through.= non-additive meter
d.light design, Inc.: From a Stanford classroom to solar reaching 180 million lives. The letter is B; certainty is medium. Unconfirmed concerns are placed under “Watching.” (As of 2026-Q2; estimate based on public information.)
Main narrative
One person’s story (N1)
+ before → after
d.light's origin is one boy. As a Peace Corps volunteer in Benin, Sam Goldman saw the 12-year-old next door burned from head to foot in a kerosene-lamp accident. That event turned him and Ned Tozun toward a business for “safe light to replace kerosene.” According to Stanford researchers, studies suggest that roughly 30 minutes to an hour of solar lighting has a direct positive effect on children's school performance.
Source nature: Stanford Doerr School of Sustainability / Smart Villages / P2 independent media & university. Positive effects are not used to offset negatives.
Positive / negative effects
+ effects
- Acumen analyzed d.light as a case, crediting how it built trust in a quality-wary market with a two-year warranty and local support. Co-founder Tozun was named to TIME100 Climate 2024, and the company was a finalist for the Earthshot Prize 2024.P1 independent recognition (TIME / Earthshot / Acumen) / TIME
− effects (confirmed)
- No confirmed −.
- Self-reported reach and CO2-reduction figures
- PAYG debt and device-shutoff risk
- A goal of delivering clean, affordable power to one billion people by 2030.
A second look
The core + is improved learning, work, and health from light and power, and the replacement of kerosene (people and nature), backed by Acumen's case study, TIME100 Climate (2024), and being an Earthshot Prize finalist (2024). Reach numbers and CO2 reductions rest mainly on self-reported figures; note the gap from independently verified values. How PAYG credit affects households that struggle to pay is a point to watch.
Sources
How to read this assessment
- Reachable upper bound (ceiling): a confirmed − sets the ceiling, and independently verified + decide the position within it. + do not cancel out −.
- The weight of evidence is not symmetric: only confirmed − are counted; the volume of disputes or allegations goes under “Watching.” + are counted from independent evidence, while an organization’s own PR is treated as “reference.”
- Size is not value: scale is not used in the assessment. Matters that stay within money or competition—investors, shareholders, sanctions, trade secrets—are also excluded.
- The letter (assessment) and certainty (how reliable the information is) are separate axes.
This is a translation; the Japanese version is authoritative. The assessments here are generated automatically by AI based on published criteria. The operator does not alter individual results. Because they are AI-generated they may contain errors, and they are opinion and commentary, not statements of fact. Where evidence is insufficient, the entry is marked “On hold.” Requests for correction are accepted via the form.
Terms: Narrative Value = an assessment (A–G) of the distance between the story an organization tells and its reality / Ceiling meter = a visualization of the reachable upper bound / Watching = unconfirmed matters not counted / Protected stakeholders = people, animals, nature, and future generations. | Generated by: AI | As of: 2026-Q2 | Back to top