Algae can really "low cost" to replace conventional sources of energy right?

藻类植物真能”低成本”的取代传统能源吗 ?。

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Nevertheless, to the extent that conventional sources of energy production are declining, the high marginal cost of new sources of energy will slowly drive up the average cost.

无论如何，鉴于传统方式的能源产品正逐渐减少，新能源的高成本将缓慢抬高能源的平均成本。

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The fuel cells can convert almost any hydrocarbon fuel into electricity without combustion, and the greenhouse gas production is half of that from conventional energy sources.

这种燃料电池能把几乎所有碳氢化合物燃料转化为电力而不需要燃烧过程，因而温室气体的产生也就只有通常电厂的一半。

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On the one hand, with its near-zero emissions, it stacks up favorably against conventional, polluting sources of energy.

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The primary argument against taking advantage of our affordable conventional energy sources is the emissions from conventional power plants.

FORBES: Obama Unites Global Warming Alarmists, Skeptics In Presidential Debates

At the nexus of these life-improving advancements and routine behavior, however, stand conventional energy sources, especially oil.

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