if these seem rather sandy, dusk brings one last surprise... ..as ijoin the night team for operation mirror cleaner seen anything quite like this! wow! 0h, cool! it's a bit like a giant carwash. and i'm about to get very wet, if i don't more out of the way. this is a lot of water, but left unwashed, reflectivity could drop by more than 20%, so a fleet of these beasts do nightly rounds, scrubbing into the early hours. so, as loud and as exciting as this is, it is actually doing very important work, keeping these solar panels sparkling clean, so they can generate as much electricity as possible. as the sun rises over the atlas mountains, this 3,000 hectare site is ready to power up once again. i'm back in marrakech, visiting its famous markets. it's clear that morocco�*s plentiful sun isn'tjust a major power source, it's vital for the huge variety of crops grown here. he chatters but morocco must fight for its food security. it's a country that's looking to technology to ensure that future generations can continue to grow and enjoy produce like this. i'm travelling an hour north of marrakech to mor