Woman led · Maai Mahiu, Kenya

Sawdust, engineered into clean industrial heat.

A woman led Kenyan biomass energy provider. From Maai Mahiu, we supply non-carbonized sawdust briquettes and six more biomass fuels to manufacturers, schools, hotels and institutions.

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Woman led since 2022 Jobs for women and youth

Verified by customers Passed an independent quality test at a customer’s boiler, EPZ.

Our fuels

Seven biomass fuels, each its own product line.

Compare our fuels

“Quality is not what we claim—it’s what our customers verify.” Our briquettes in a customer’s boiler during an independent quality test, EPZ.

Quality · Tested and made to spec

Tested in a customer’s boiler, made for yours.

Utheri Energy Solutions Limited turns sawmill residue into reliable fuel for Kenyan industry, replacing firewood and charcoal with local biomass heat.

Made to your specification Super Logs are pressed to each client’s consumption needs.
Tested before dispatch Every batch is moisture-tested and inspected by hand.

Fires the equipment you already run

Boilers
Industrial furnaces
Kilns
Gasifiers

See the fuel specifications

How it works

How we make it: from sawmill residue to process heat.

Our briquettes are pressed from sawdust only, sun-dried and moisture-tested so every batch burns consistently.

1 Recover Sawdust from sawmills along Kenya’s western corridor, plus farm and forest residues.

2 Dry and test Sun-dried on open beds and in solar tunnels, turned by hand and moisture-tested.

3 Compress Pressed into dense Super Logs that store, move and feed easily.

4 Deliver Bagged and trucked to boilers, kilns and furnaces across Kenya.

See the full process

Who we are

A woman led company in Maai Mahiu, producing since 2022.

Our business is built on a circular-economy model that turns waste into value: recovering underutilized biomass and converting it into productive energy.

Esther Njeri Founded Utheri in 2022 Co-Founder & CEO

Our mission

Find the next productive use for residues that would be burned in the open, dumped or left to rot, and turn them into steady, local heat.

Sun-drying beds, Maai Mahiu

Milestones

6/7

Utheri founded in Maai Mahiu 2022
Africa Climate Investment Summit 2025
KCIC women climate leaders 2026
Climate-smart enterprise programme 2026
EVI-SICEE exchange visit 2026
Kenya Impact Finance Forum 2026
Scaling up, with partners Next

Investor overview

100+
tonnes / month Briquettes produced: 1,200+
tonnes / year Briquettes produced, annualised: 7
biomass fuels Product lines supplied: 2022
operating since Producing in Maai Mahiu

People

The people behind Utheri: real people, real impact.

Every drying bed filled with sawdust represents work for women and youth in our community: collection, drying, pressing and delivery across the value chain.

How we measure impact