Nnaemeka Ikegwuonu is the CEO of ColdHubs, an award-winning social enterprise that produces “plug and play” modular, solar-powered walk-in cold rooms to reduce food waste in off-grid communities. ‘ColdHubs’ are installed in markets around Nigeria so farmers can store their produce using a flexible pay-as-you-go model. ColdHubs is reducing post-harvest loss by up to 80% for farmers and increasing their income by up to 25%.