The mechanism, from the book

The sun shines on every roof and the island imports its fuel.

Every idea in cluster 21 uses this mechanism.

A first step

Count the light fittings in one garment or food factory and one temple, with the permission of the manager and the trustees, and note the type and the hours each one burns. Work out what the bill would fall by with efficient lamps, then offer to fit them at cost and take a share of the saving for a year. The proof is one signed retrofit order.

Who pays first
A factory manager who runs lights through long shifts and wants a lower bill without spending capital, paid from the saving itself.
What leaves today
Inefficient lighting burns power made from imported fuel; every retrofit cuts a bill that ultimately leaves the island as foreign exchange.

The idea and the mechanism are from the book. The first step was written for this site as a suggestion; if you know a better one, say so.

The Starter Kit, printableOne click, no form, no name.

The test

Does it keep value that now leaves the island, or build the proof that lets somebody else do so?

The only test any idea on this site has to pass. The four rules that go with it are here.

In the book

WITH500BUSINESS IDEASTO STARTTOMORROW

Idea 424 of the 500 in the appendix of Why Not Sri Lanka? Every one can be started by one person, one family or one small firm.