EN
Back to the archive

The encyclopedia · Engineering & Operations · Operational decision · 2014–2022

Kenya's last-mile grid plan mined 35,000 existing transformers

Instead of building new plants and lines, Kenya Power connected homes within 600 metres of transformers, pushing national electricity access from 53% past 70%.

Kenya Power (KPLC)

The solution

In 2014 only about half of Kenyan households had electricity even though the country already had an extensive grid. Connections were expensive, and the standard remedy — more generation and long transmission lines — meant years of capital chasing relatively small household loads.

Kenya Power and the African Development Bank flipped the problem: instead of building supply, they mined the grid. With 35,000 transformers already in place, the project extended low-voltage lines to homes within 600 metres of them, pre-financed connections and meters, and cut the connection fee to about KSh 32,480.

Phase 1 (about $131 million, approved 2014) aimed to reach 1.2 million people; IDEV's impact evaluation found it effective in raising access to electricity. Phase 2 (2016–2022, a $134.64 million loan) added about 18,000 km of low-voltage line, connected 322,279 households and small businesses, and lifted national access from 53% to more than 70%.

The Bank's completion report praised the flexible design — resources moved between transformers as demand surfaced — and rated the project highly satisfactory. Later phases extended the model to more counties.

Why it worked

  • Existing transformers were sunk infrastructure; low-voltage extension is far cheaper than new generation or transmission.
  • Pre-financing removed the upfront barrier that kept poor households off the grid.
  • Repayment through monthly bills spread the cost over years without new collection machinery.
  • Flexible design let funds follow actual demand instead of a fixed plan.
What it achievedMine sunk transformers before building new linesclever

What can be applied

Before adding supply, count the demand your existing assets already touch: the cheapest connection is the one the grid can deliver with a few hundred metres of low-voltage wire.

Aftermath

Phase 2 closed in 2022 with access above 70% and at least 1.6 million people newly connected; the completion report rated the project highly satisfactory and highlighted its flexible use of selected transformers. Phase 3 (approved 2023) and a sixth phase funded in 2025 kept extending connections, while IDEV cautioned that reliability and the productive use of power needed attention for benefits to last.

Sources

spotted an error? The archive wants to know.

Related cases