New technology for storage and transmission make wind power cheaper than solar, but it is still 50% more expensive than coal-powered electricalplants.
新的存贮与传输技术使得风能比太阳能在成本上更低廉，但是它仍然比传统的燃煤发电厂高出了50%的成本。
2
But the new approaches are expensive, making it difficult to compete financially with conventional electricalplants, notably those that burn coal or gas.
但是新的开采方法相当昂贵，很难与常规电站，特别是燃煤或燃气电站，在财务上竞争。
3
New materials have driven the power industry for decades, as better heat - and pressure-resistant materials allowed electricalplants to grow larger and larger.