Maven Capital Partners has led a £2.5 million funding round in Power Roll, a developer of ultra-low-cost and lightweight flexible film for energy generation and storage. The transaction comprised two investments from Maven managed regional funds including a £500,000 investment from the Finance Durham Fund, established by Durham County Council and overseen by Business Durham and a £250,000 investment from the North East Development Capital Fund, supported by the European Regional Development Fund. A further £1.75 million was invested by existing shareholders.