Because energy and heating oil are so expensive, my farm has been looking for an alternative way of producing energy and heat. We have planted 1.3 hectares of Miscanthus, also known as elephant grass, and this is now replacing 8,000 to 10,000 litres of heating oil. This represents a quarter of our farm’s annual heating oil consumption. We harvest the Miscanthus in the spring with a maize chopper and store it in a shed. Burning the chips delivers enough heat in the greenhouse to ensure optimum lettuce production.