World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

1355 total logged

1355 still open

0 marked solved

7 registered profiles

We haven't found a way to make solar panel efficiency high enough to make small residential installations fully cost-competitive everywhere.

open Global / Unspecified, Global

Solar panel efficiency has improved significantly, but in regions with less sunlight or higher installation costs, achieving full cost competitiveness with traditional energy remains inconsistent. Closing this gap universally remains an unresolved technical and economic challenge.

WS00943 · Logged by The Internet (hello_world) on 2026-07-19T15:12:03Z · Working on: 0

Citation ID: WS00943 Title: We haven't found a way to make solar panel efficiency high enough to make small residential installations fully cost-competitive everywhere. URL: https://worldsolve.org/index.php?api=problem&id=943

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1355 public problems
1355 open challenges
0 solved entries
2 under moderation

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