By quickly storing and delivering charge, batteries could accommodate fluctuations in supply and demand, and help to incorporate variable sources of power such as wind and solar.

通过快速的存储和高效率的充电模式，电池可以很快的调节供应和需求之间的平衡，同时又可以吸收其他多变的能源，例如风能和太阳能。

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One of the main sources of acrimony is Tajikistan’s long-planned construction of a dam and hydroelectric power-plant, which will provide a much-needed supply of steady electricity.

矛盾的源头主要是塔吉克斯坦计划建设一个大坝以及水力发电站用以稳定提供大量的电力。

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The European Union has committed itself to getting 20% of its electricity supply from renewable energy sources, mainly wind power, by 2020.

欧盟已经做出承诺，到2030年，20%的电力供应要来自于可再生能源，主要是风能。

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That would force power companies to take more of their supply from green energy sources, like wave and tidal power.

BBC: Pelamis consists of four 40 metre steel tubes

Now Germany will have to find new sources to supply 23% of its power needs, which is the load its nuclear reactors carried in 2010.

FORBES: The Future of Atomkraft

The new plant, to be constructed by France's Alstom and ready for commercial use by the winter of 2008 to 2009, will provide enough electricity for 1 million homes annually and will top up the amount of power that Centrica can supply from its own sources to 71%.

FORBES: Gardner's Centrica To Build Big Power Station