Unlike oil, coal and gas, the supplies of which are finite and subject to geopolitical tensions, renewable energy systems can be built and used wherever there is sufficient water, wind, and sun.
不像石油，煤和天然气，其供应是有限的并受到地缘政治紧张局势的影响，可再生能源系统可以被建造和被使用，只要有足够的水，风和太阳光。