●●○ medium
There is no confirmed −; independently verified + decide the position (B). No unreachable strike-through.= non-additive meter
Iluméxico (ILUMEXICO): Solar for off-grid rural and Indigenous households. In Mexico, about 2.6–3 million people (about 600,000 households) live far from the grid, spending scarce income on candles and kerosene — dark, smoky, and a hindrance to study and work. Iluméxico (founded 2009–10 by engineering students; CEO Manuel Wiechers) is a social enterprise delivering solar home systems to such households. About 60% of its customers are Indigenous, mostly in settlements of under 100 households. It designs appropriate technology for the base of the pyramid, reaches the last mile through the hub-and-spoke of “ILU Centros,” and since 2017 offers “Solar as a Service” (tiered fees of about $8–13 a month including maintenance and battery replacement). It has installed over 20,000 systems reaching about 90,000 people, electrified schools and clinics (in 2014, Mexico's first 100%-solar school in Chiapas), and about a quarter of its technicians are former customers. The letter is B; certainty is medium. Unconfirmed concerns are placed under “Watching.” (As of 2026-Q2; estimate based on public information.)
Main narrative
In Mexico, about 2.6–3 million people (about 600,000 households) live far from the grid, spending scarce income on candles and kerosene — dark, smoky, and a hindrance to study and work.
Iluméxico (founded 2009–10 by engineering students; CEO Manuel Wiechers) is a social enterprise delivering solar home systems to such households. About 60% of its customers are Indigenous, mostly in settlements of under 100 households. It designs appropriate technology for the base of the pyramid, reaches the last mile through the hub-and-spoke of “ILU Centros,” and since 2017 offers “Solar as a Service” (tiered fees of about $8–13 a month including maintenance and battery replacement). It has installed over 20,000 systems reaching about 90,000 people, electrified schools and clinics (in 2014, Mexico's first 100%-solar school in Chiapas), and about a quarter of its technicians are former customers.
One person’s story (N1)
+ before → after
In Indigenous settlements of fewer than 100 households in Chiapas or Guerrero, dusk used to bring only the faint light of candles and kerosene, and children couldn't study in the dark. With a solar home system, light comes on and children open their textbooks at night. The monthly fee is less than what was spent on candles and kerosene, and the savings go to food, school costs, and investment in the field.
Source nature: Solarplaza / Greentech Media / P3 trade media. Positive effects are not used to offset negatives.
Positive / negative effects
+ effects
- It is certified as a participating company in the UNDP-led Business Call to Action (BCtA). A comparative study by Santa Clara University's Miller Center (Miranda 2016; user interviews = NPS) found high satisfaction thanks to after-sales service and customer relationships, noting it may be more cost-effective than government programs. Greentech Media and Sustainable Brands have reported on it.P1 international body/academic / UNDP Business Call to Action / Santa Clara Univ. Miller Center
− effects (confirmed)
- No confirmed −.
- Independent quantitative verification of income/health/education effects; long-term uptime and fee collection after installation; effectiveness of local-government partnerships
A second look
Reach (about 90,000 people) is relatively small, and the scale of income/health/education effects is mainly company disclosure. Independent verification is limited to a small Santa Clara University survey (32 cases, satisfaction-focused), with no RCT-type outcome evaluation. For Solar as a Service, long-term uptime after installation and the sustainability of fee payment are points.
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