Hartog Palmen uses energy very efficiently. The natural gas, which used to be burned in the boiler, now goes into a combined heat and power installation (CHP). This is a small power plant that can produce 0.9 megawatts of electricity. The greenhouse is heated with heat generated in the CHP. The electricity generated during this process is supplied to the utility company that supplies the Netherlands. Did you know that over 15% of all electricity needed in the Netherlands is generated by the horticultural sector?