Consulting & Advisory · Renewable Energy
Reneng is a consulting and advisory engineering firm bringing deep development experience to renewable energy projects. We guide owners, developers and investors from early feasibility through to delivery — and we are building to do more as South Africa's energy market liberalises.
Get in touchAs the sector liberalises, sound technical judgement is what separates a project that gets built from one that stalls. Reneng combines hands-on development know-how with rigorous, independent engineering — helping our clients make confident decisions and protecting their interests at every stage of a project.
What we do
Every sound energy strategy starts with efficiency — using less before generating more. We assess sites, test assumptions and pressure-test the numbers: feasibility studies, technical due diligence and strategy advice that tell you whether a project stacks up, before you commit capital.
We represent your interests on the project, not the contractor's. Independent oversight, review and technical assurance so that what gets delivered is what you were promised.
We help move projects forward — supporting development, planning and consenting, and route-to-market for renewable generation as the market evolves.
Where we add value
We work across the renewable energy value chain, bringing an owner's perspective and an engineer's discipline to every engagement.
Solar PV, battery energy storage and biogas, grid-connected and behind-the-meter.
Unconflicted advice — we answer to you, not to a contractor or supplier.
Real experience taking projects through development, not just reviewing them.
From feasibility and due diligence to delivery oversight and commissioning.
Grid connection realities and evolving routes to market in a liberalising sector.
Positioned to take on development and new services as South Africa's market matures.
Selected experience
Representative engagements our team has led and delivered:
Assessed project value for investors, negotiated sale and purchase agreements, and steered utility-scale transactions through to financial close — including a 500 MW grid-connected PV and battery storage portfolio. Secured grid capacity and environmental authorisation across a 1 GW+ solar, wind and battery pipeline.
Structured tender specifications and power purchase agreements for 300 MW of independent power, and developed commercial-scale municipal solar — including one of South Africa's first municipally owned grid-connected PV facilities.
Acted as owner's and lender's engineer on a 4.4 MWe grid-connected biogas plant under a FIDIC contract — overseeing construction, commissioning and performance testing, and delivering around $1.5 M in client savings through rigorous contract management. More recently, contracted to assist in construction oversight for the 5 MWe expansion of the Bronkhorstspruit Biogas Project.
Delivered electrification of 2,500 rural households through hybrid solar-battery mini-grids and smart metering as the EPC project manager.
Completed some 15 feasibility studies spanning industrial energy efficiency, commercial solar, small-scale hydro and waste-to-energy — including securing utility rebate funding for $2 M of municipal energy-efficiency infrastructure.
Who we are
Reneng was founded in 2012 by Gordon Kernick to bring independent, technically grounded advice to energy projects. It began with feasibility work spanning industrial energy efficiency, commercial solar, small-scale hydro and waste-to-energy — and grew as South Africa's energy landscape opened up.
We are based in Cape Town and work primarily in the South African market, drawing on project experience from across the continent — utility-scale solar and storage, rural electrification, and waste-to-energy. That breadth matters: it means we understand how projects actually get built, financed and connected, not just how they look on paper.
Let's talk
Have a project, a question, or an opportunity to explore? We'd be glad to hear from you.
