In 2010, using solar power to boil your kettle would have cost you about ￡0.03. By 2020, according to estimates by our research team at UBS, the cost will have fallen to half a penny. By 2030, the cost could be so near to zero it will effectively be free.
2010年，利用太陽能燒開一壺水的成本約為0.03英鎊。到2020年，根據瑞銀(UBS)研究團隊的估算，成本將降至0.5便士。到2030年，成本可能如此接近零，以至于實際上將相當于免費。
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