Adrian Letts will join the energy company in the New Year as it prepares to expand overseas.
He has helped grow Tesco’s e-commerce business while improving customer experience and increasing profitability – the supermarket saw its highest growth in seven years earlier this year.
Mr Letts co-founded digital and on-demand TV service Blinkbox in 2006 prior to joining Tesco.
OVO Energy serves more than 850,000 retail energy customers in the UK.
Founder and CEO Stephen Fitzpatrick said: “[Adrian] is one of Europe’s stand-out talents in the digital economy and is joining OVO at a time of profound change in the energy sector across the world. His experience running a global digital business at a leading retailer, combined with his entrepreneurial mindset will be key in helping shape our strategy and lead our international expansion to Europe and beyond.”