To the extent that the shale-gas success is repeated elsewhere, a vital source of energy will become available from an ever more diverse and numerous set of suppliers in increasingly free markets.

页岩气的成功开采比比皆是，这使得能源的主要来源，在日益增多的自由贸易市场中，变得更多样，选择也更多。

youdao

And nuclear is hardly the only energy source that hasn't stood up in the free market once you factor in the external costs.

考虑到外部的成本因素，所以核电到目前为止是唯一还没能在自由市场上自主建设的能源。

youdao

Solar energy is lauded as an inexhaustible fuel source that is pollution and often noise free. The technology is also versatile.

太阳能被称为是取之不尽的能源，没有污染，通常也没有噪声，而且用途广泛。

youdao

Wind is certainly not a competitive free market source of energy, or a charity we can continue to afford.

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Nukes may not be quite as clean as wind, solar or geothermal, but they provide a carbon-free and domestic source of energy that produces lots of jobs.

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Not everyone is convinced that wind-power is the most reliant route to clean, renewable carbon-free energy, and it is concerning that Britain is relying on a power source that must be backed up by more constant technologies such as nuclear, coal, or gas, because the wind blows inconsistently, as is its nature.

FORBES: Wind Power Efforts May Not Be Enough For U.K.