If many substantial legal problems in power supply and demand contracts can't be solved well, it will make industries face many legal risks.

如在供用电合同的签订和履行中不能妥善解决一些实质性的法律问题，将使供电企业面临一系列的法律风险。

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Article 6 Both power suppliers and users shall, under the principle of equality, volition and consensus through consultations, sign contracts on the supply and consumption of electric power.

第六条供电企业和用户应当根据平等自愿、协商一致的原则签订供用电合同。

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As a result of the price competition among coal-based power enterprises in 2003, the relations between supply and demand become intensive. The rate of contracts fulfillment turns to be in a low level.

本文通过系统地分析煤电企业因2003年电煤价格之争，而导致供求关系紧张，合同兑现率降低。

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These power-supply contracts commonly include fixed or indexed price structures.

FORBES: As Power Grid Gets Smart, New Yorkers Scramble to Stay Dumb

Rather than shifting or shedding load, the principal response strategy for customers receiving service under MHP rates has been to enter power-supply contracts with third-party ESCOs that limit their exposure to daily price fluctuations.

FORBES: As Power Grid Gets Smart, New Yorkers Scramble to Stay Dumb

Those high-cost contracts were seen as a way of assuring the state's power supply at reasonable rates, but after the crisis, when prices fell, they appeared much too costly.

FORBES: Magazine Article