Why cleaner industrial heat, and the business models that make it affordable, deserve a place at the centre of Africa’s manufacturing agenda.
Across Africa, the clean-energy conversation is still dominated by electricity. We talk about solar, grids and access, all of which matter. But in the factories producing our food, medicines, textiles and consumer goods, a large share of energy demand takes another form: heat.
Industrial boilers generate the steam that keeps production moving, yet many still depend on diesel or heavy fuel oil. That dependence is often framed mainly as a carbon problem. In our experience at Lean Energy, it is just as much a business problem. Imported fossil fuels expose manufacturers to price volatility, foreign-exchange pressure and rising operating costs. Rethinking industrial heat is not only essential to meeting climate commitments; it is also critical to building a more
competitive African industrial sector.
Decarbonisation works best when it solves a business problem
The common assumption is that sustainability requires manufacturers to absorb a large upfront cost today for an environmental benefit tomorrow. That framing slows progress. Factory leaders are accountable for production continuity, quality and cost. A cleaner solution that compromises any of the three will struggle to scale, however compelling its environmental credentials may be.
In our view, changing the energy source also requires rethinking the commercial model. Lean Energy uses a Build-Own-Operate model: we finance, engineer, install and operate the utility infrastructure, while the manufacturer pays for the steam or heat consumed. The client does not have to divert capital from its core business, and responsibility for equipment performance, maintenance and fuel supply sits with us.
This arrangement does more than remove an investment barrier. It aligns accountability with performance. If the boiler is inefficient, unreliable or poorly supplied, the service model fails.
Cleaner energy is no longer a separate corporate responsibility initiative; it becomes part of day-to- day operational discipline.
Responsible biomass goes beyond replacing fossil fuels
Biomass can replace imported fossil fuels with locally available agricultural residues such as coffee husks, maize cobs and sawdust. Done well, this keeps more energy spending within local economies and creates activity across collection, processing and transport. It can also turn material that might otherwise be discarded or burned inefficiently into productive industrial energy.
But biomass is not sustainable simply because it is renewable. Its credibility depends on traceable
sourcing, strong quality controls and practices that protect forests and food systems.
Turning climate ambition into everyday business practice
Lean Energy’s B Corp Certification provides an important accountability framework for this work. It does not suggest that the work is finished; rather, it requires us to ask harder questions about how we govern the company, treat workers, engage communities, serve customers and measure environmental performance as we grow.
For an industrial energy company, those questions are practical. Are savings delivered without compromising reliability? Is biomass sourced responsibly? Who participates in the economic value created? Can environmental performance be verified throughout a long-term contract? These are not questions that sit outside commercial performance. They determine whether the model is genuinely resilient.
Africa will not decarbonise its factories through one technology or one fuel. Different processes will require energy efficiency, electrification, solar thermal, geothermal, sustainable bioenergy and waste-heat recovery in different combinations. But one principle should cut across them: climate solutions will scale when they are built around the operating realities of industry and when the companies delivering them are accountable for the results.
The next phase of Africa’s energy transition will not happen only on the grid. It will also happen in boiler rooms, fuel yards and factory processes. That is where cleaner energy can demonstrate that purpose and performance reinforce each other, and where industrial decarbonisation can move from ambition to measurable industrial progress.
About Lean Energy Solutions
Lean Energy Solutions is a Certified B Corporation and renewable energy company operating in Kenya, Tanzania and Uganda. It develops, finances, owns and operates on-site industrial utility facilities, with a focus on renewable thermal energy, biomass boiler projects, biomass briquette manufacturing and industrial energy audits. Through its Build-Own-Operate model, Lean Energy helps manufacturers transition from fossil fuels while reducing upfront capital requirements and improving utility reliability. Learn more at leansolutions.co.ke
Article by: Dinesh Tembhekar, Founder and Managing Director, Lean Energy Solutions
