For greenhouse horticulture in the region of Oostland far-reaching changes are foreseen in three scenarios for 2030 when looking at energy use. The scenarios consist of pessimistic, moderate and optimistic development routes of greenhouse horticulture in the Oostland region. The changes have the most impact on energy supply sources, which will rely less on natural gas and more on sustainable sources and purchase of energy from third parties, and are a result of changes in energy demand and mutations of sector structure, sustainability efforts of the greenhouse enterprises with their partners and government policy. The changes have a positive effect on the reduction of CO2 emissions and the share of renewable energy. It has emerged that energy sustainability is related to the modernisation of greenhouses, that cooperation between companies, their partners and governments is essential and that expansion of energy-networks are of great importance. The glasshouse horticulture in Oostland distinguishes itself with its own characteristics in terms of sector structure, energy demand and energy supply from national greenhouse horticulture.