Transforming businesses,
economies and the market
The Energy Exchange acts as a market place where independent generators can sell their surplus energy to the industrial and commercial entities who need it.

At the Energy Exchange of Southern Africa, we are passionate about energy and the power that it has to transform businesses, economies and communities. Our team has a wealth of experience across project development, infrastructure, financial markets, investment and, most importantly, the energy sector.


Rekha is an investment professional with track record of
leadership experience of more than 20 years in the petrochemical and investment sector. She is currently the interim CEO at EXSA and investment executive at Remgro Limited with focus on manufacturing company boards, the Pembani-Remgro Infrastructure Fund and the strategic energy initiative across the Remgro group of companies.

Prior to her role at Remgro Limited, Rekha spent 20 years at Sasol, a global petrochemical company, in various roles, including leading the Group’s investment assurance function for its mega investments and divestments, leading the business track for its Green Hydrogen development in SA, integrated business and
portfolio optimisation across the fuel, chemical, power, coal and gas value chains, operations management and process engineering.

She has a degree in Chemical Engineering and a Masters in Business Administration.

Aishah holds a BusSci degree from the University of Cape Town, specialising in Finance and Accounting. She started her career in investment banking and advisory, focusing both on global markets / trading, research and corporate finance. She has extensive experience in valuations and financial modelling within the financial services, mining, industrial and renewable energy sectors, amongst others.

Aishah has been involved with the Energy Exchange since its inception in 2017, traversing the nascent industry for electricity trading. She has a strong understanding of energy tariff structures and methodologies in the South African market. She is also engaged across numerous stakeholders in the industry, including regulatory bodies, Eskom, Municipalities, generators, customers and project funders. She currently oversees the finance, analytics
and operations of the Energy Exchange business.

Vuyo is the Business Development and Stakeholder Lead at the Energy Exchange of Southern Africa. She has experience in asset management, servicing some of the largest asset consultants in South Africa and their associated institutional clients. She also has experience in corporate governance, shipping (logistics) and brand management. She heads engagements with the regulatory
stakeholders in the industry.

Prior to joining the firm, Vuyo worked at Investec Asset
Management, Barclays Wealth, Old Mutual Group, Maersk and Tiger Brands. She holds a MSc. degree in Finance from the University of London and has completed a Certificate in Securities from the Chartered Institute for Securities and Investment, UK. She graduated from the Durban University of Technology and further gained a Post graduate Diploma in Investment Analysis and Portfolio Management.

Viwe holds a BCom degree from the Nelson Mandela Metropolitan University specialising in Accounting. She started her career in the Auditing industry, where she completed her auditing articles at SNG Grant Thornton. She was involved in audits for various entities ranging from manufacturing, industrial, education, public entities, and financial services.

She then worked as a Financial Accountant at Mulilo (an IPP) in 2020, where her experience included financial aspects of project development, socio-economic development and community-based trusts. Then later working under the asset management division
which looked after various Solar PV plants currently operational. Viwe is currently a financial analyst at the Energy Exchange of Southern Africa and is involved in the operations, finance and analytics side of the business.


Our strategic shareholders, Remgro Ltd and RMB Holdings Ltd are aligned with the business and share our vision of transforming the energy market in South Africa to a greener and more efficient market. A market where buyers and sellers can come together; where technology creates enhancements and allows customers to better manage their energy risk.

Board of Directors

Pieter Uys is the chairman on both the Ubiquity and Energy Exchange boards. He is part of the executive management structure at Remgro Limited. He holds the position of Head of Strategic Investments within the company. Pieter Uys joined Remgro in April 2013 after serving as the CEO of Vodacom Group Limited for four years having joined the company over 20 years before that. He has a Masters degree in Electrical Engineering and a Masters in Business Administration.

Dario is an Investment Banking Director at RMB, with more than 20 years’ experience in the power and infrastructure sectors. He is a director on both the Ubiquity and Energy Exchange boards on behalf of RMB and plays an active role in driving the Energy Exchange strategy and business model.

Prior to his Investment Banking Director role, Dario headed up the RMB Infrastructure Sector Solutions team for 6 years, responsible for the bank’s power and infrastructure financing and advisory services across sub–Saharan African. Dario joined the RMB Infrastructure Sector Solutions team in 2006 as a Senior Transactor. He is a qualified Chartered Accountant and CFA Charterholder. During his career, Dario was responsible for leading several landmark project financings across Africa and Australia, spanning conventional power and renewable energy, as well as toll road concessions and PPPs. Dario gained international project finance experience in Australia at German investment bank, WestLB, and prior to that, as a member of the PwC Australia Project Finance Advisory team.

Philip is a Senior Investment Banker at RMB, with more than 9 years’ experience across multiple corporate and Real Asset sectors. He is a key part of RMB’s strategic focus on investing in the power and infrastructure sectors. He is an active shareholder representative for RMB for both Ubiquity Energy and Energy Exchange, primarily responsible for strategic planning and implementation and developing bankable financing structures for the businesses.

Philip has been with RMB’s Principal Investments division for more than 7 years and has significant deal experience and leads a number of investments across industries - including REIPPP Equity, Private Power, Agri infrastructure, consumer goods and manufacturing. Philip has also spear-headed multiple strategies for the division to invest into other jurisdictions such as the UK and India. Philip currently represents the Principal Investments Division in Cape Town where he is based full time. Prior to his role in Principal Investments, Philip completed his CA (SA) articles at Firstrand, rotating through various divisions including FNB, Ashburton Investments, RMB and FirstRand Group. He is a
qualified Chartered Accountant and CFA Charterholder.

Willem is an Investment Manager at Remgro Limited, initially joining the group in 2006 as Head of Tax, and was subsequently appointed in the Corporate Finance team.

Willem serves on numerous boards linked to infrastructure and energy, including Pembani Remgro Infrastructure Managers as well as being a member of the investment committee of the infrastructure fund. His focus includes the strategic energy initiative across the Remgro group of companies.

He is a director, on behalf of Remgro, on the Boards of the Energy Exchange of Southern Africa and Enerweb. Previous directorships include Grindrod Limited and Grindrod Shipping Limited.

Willem is a qualified Chartered Accountant and holds a post graduate degree in taxation.