Bing Klima, based at Kibbutz HaGoshrim, has developed an all-in-one green roofing system that can pay for itself. Solar panels sit above crops and generate energy to offset electricity bills or be sold to the electric grid operators. Customers are mainly in the USA and Spain.
https://nocamels.com/2023/10/all-in-one-kit-makes-urban-rooftops-into-energy-producing-gardens/