noun
supply source; source of supply
Refers to the origin or source from which something is supplied, such as resources, energy, or materials.
この地域の水の給源は地下水です。
The supply source of water in this area is groundwater.
電力の給源を多様化する必要がある。
It is necessary to diversify the sources of electricity supply.
More common and general term for 'supply source'; 給源 is a slightly more technical or formal variant.
Compound of 給 (supply) and 源 (source).