suorakulutettavat
Suorakulutettavat, also known as direct-use energy, refers to energy sources that are utilized in their natural state without undergoing significant transformation into a secondary energy form like electricity. Common examples include wood, natural gas, and geothermal heat. These sources are often employed for heating, cooking, and industrial processes. The advantage of direct use lies in its efficiency, as it bypasses energy losses that occur during conversion processes. For instance, burning wood for direct heating is generally more energy-efficient than converting wood into electricity and then using that electricity to generate heat. However, the widespread adoption of some direct-use sources can be limited by availability, transportation, and environmental considerations. For example, while natural gas is a widely used direct-use fuel, its extraction and combustion have environmental impacts. Geothermal heat offers a renewable direct-use option in regions with accessible geothermal resources, providing heat for buildings and agricultural purposes.