Fujisawa Sustainable Smart Town
Panasonic-led Fujisawa SST turned a 19-hectare former factory site southwest of Tokyo into a district planned for up to 1,000 households (about 566 built and roughly 2,000 residents by the mid-2020s), where each home has solar panels and battery storage tied to a shared area energy-management system. A decade in, the operator reports it has hit its original environmental targets, though the figures are self-reported, not independently audited.
📊 Impact
Fujisawa SST / Panasonic report a 70% cut in CO2 emissions versus a 1990 baseline and a 30% cut in household water use versus a 2006 equipment-standard baseline, plus a renewable-energy self-consumption rate above 30% — all self-reported by the operator, with no independent audit located.
🎓 Lesson
A privately financed 'sustainable town' can hit ambitious targets on paper — but when the developer that built it is also the only party measuring the results, the numbers are closer to a company report than an independent evaluation.
📖 Terms in this entry: Lighthouse project · Microgrid · Smart grid
Sources
This overview was generated with AI from the public sources listed above and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
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📎 Cite this project
1001 Smart Cities (2026). “Fujisawa Sustainable Smart Town” — Fujisawa, Japan. The Smart City Atlas. https://1001smartcities.org/projects/fujisawa-sst/ (last verified 2026-08-02). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.