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电网发展计划对电源和负荷发展计划依赖很大。调度和发电机组退役等方面日增的不确定性给电网公司造成了新投资方面的困难选择。电网公司需要发电商解决电网阻塞(通过机组再调度)、电网运行(提供无功电能)问题。电网公司必需的对发电和供电的经济独立性有时与他们在运行方面对当地发电商的依赖存在冲突。这种独立性困难选择要求电网公司在变为完全自立(高成本)和保持对发电公司的依赖(高风险)之间作出平衡选择。尽管由于所有的电力市场交易是通过电网完成的,电网公司因而在电力市场中处于关键的地位,但因其与用户的联系由其他参与方作媒介,产生了电网公司作用被低估的风险。电网公司面临着展示保证电网质量和供电供应系统可靠性实际上是他们的职责这一挑战。
Power grid development plans rely heavily on power and load development plans. Increasing uncertainty in dispatch and decommissioning of gensets has caused grid companies a difficult choice of new investment. Grid companies need generators to solve grid congestion (re-scheduling by the unit), grid operations (providing reactive energy). The economic independence that grid companies need to generate and supply power sometimes conflicts with their reliance on local generators in operations. This difficult choice of independence requires grid companies to make a balanced choice between becoming fully self-reliant (high cost) and remaining dependent (high risk) on generating companies. Although grid companies are therefore key players in the power market because all electricity market transactions are done through the grid, they are at risk of underestimating the role of grid companies because of their connection with users through other players. Grid companies face the challenge of demonstrating that grid quality and the reliability of their supply systems are actually their responsibility.