Construction on the fourth phase of what is claimed to be biggest concentrated solar power (CSP) project in the world has started.

The 700MW project is part of the Mohammed bin Rashid Al Maktoum Solar Park, which is said to feature the world’s tallest solar tower measuring 260 metres and the world’s largest thermal energy storage capacity.

It will provide clean electricity to more than 270,000 households in Dubai, cutting emissions by 1.4 million tonnes a year.

The Solar Park, implemented by the Dubai Electricity and Water Authority (DEWA), has a planned capacity of 1GW by 2020 and 5GW by 2030, with a total investment of around AED50 billion (£9.7bn).