未来几个月，科罗拉多州博尔德市将测试一种新型的家用太阳能热系统，该系统可以提供热量、热水和电力。

A new type of solar thermal system for homes that can provide heat, hot water, and electricity is being tested in Boulder, Colo., over the next few months.

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电力负荷与供热负荷紧密相关，热电联产有利于节能和改善环境质量。

There has been a close connection between power load and heating load. Heat electricity cogeneration can achieve energy saving and improve environmental quality.

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目前在欧洲，许多国家又开始重新以树木作为能源，他们利用先进的木头燃烧技术向社区供热、制冷以及电力。

Now in Europe, many countries are turning back to trees, and to advanced wood combustion technologies to supply heat, cooling and power to their communities.

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