Thermal screens along with a Combined Heat and Power (CHP) system are used to provide the glasshouses with heat, power and CO2. The CHP process involves burning gas in onsite engines designed to produce electricity. Within the combustion process, heat and flue gases are produced as ‘waste products’, and the electricity is sold onto the national grid. The heat is then stored in large buffer tanks, allowing the hot water to be used as required. The flue gases are cleaned using a catalytic converter and the CO2 can be pumped into the glasshouse for improved plant growth and fruit quality.
The CHP provides enough electricity for 17,000 homes and heats the 75 acres of glasshouse throughout the year. We introduced this system to minimise waste and since its introduction, efficiency has improved, resulting in a reduction in energy costs.We’re using a combination of attention to detail, constant monitoring and innovative techniques to ensure we’re continually improving our energy efficiency.