1·Electric vehicles are energy efficient, also making them cheaper to operate.
电动汽车是节能的，这也使它们的运营成本更低。
2·High Towers, a company that occupies several office buildings, is considering installing new energy efficient lightbulbs in its buildings.
高塔公司占据了几座办公大楼，该公司正考虑在大楼里安装新的节能灯泡。
3·Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient, but still carry great cost.
变化的建筑法规，不断发展的品味，加上保养这些美丽而老旧的指示牌所需的高昂成本，都让商家们更欢迎 LED 灯，虽然 LED 灯节省能源，但是成本依然很高。
4·Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient but still carry great cost.
不断变化的建筑规范、人们逐渐发展的品味，以及维护这些精美的旧标志牌的高昂成本，让企业欣然接受了发光二极管。它们节约能源，但成本仍然很高。
5·Then it can suggest a more energy efficient appliance.
然后就会推荐一款更节能的产品。
6·All of the lighting is derived from energy efficient LEDs.
所有照明均使用节能发光二极管。
7·Replace your old boiler with a new energy efficient condensing boiler.
用新能源高效冷凝式锅炉替代你的旧锅炉。
8·LCD is a very energy efficient way of creating color displays compared to CRT.
相比crt, LCD是个节能的彩屏。
9·Waste (methane emission) management and construction of energy efficient housing;
废料（甲烷排放）管理和节能房屋的建设；
10·It says the cheapest and fastest way to do that is by becoming more energy efficient.
该机构指出，控制矿物燃料需求的最廉价且最快捷的方法是采取措施，提高能源效率。
1·The two main strikes against it: its not energy efficient and has a relatively short lifespan.
两个主要的反对理由是：它不够节能，并且使用寿命短。
2·Finally, he said that energy efficient green IT systems are needed to reduce power consumption in all areas where climate modelling software is used.
最后，他说，在使用气候变化模型的地方，绿色节能的信息系统对于降低能源消耗是非常必要的。
3·A team of scientists looked at historical evidence to show that as lighting has become more energy efficient, it has also become cheaper.
一个科学家团队根据历史证据表明，随着照明灯变的越来越节能，其价格也越来越低廉。
4·The new, larger building would be more energy efficient, costing less per square foot to heat and cool than the old hall.
新的更大的市政厅将会更加节能，单位面积所需的采暖和制冷费用都比旧建筑少。
5·The world's most powerful supercomputer could be the size of a sugar cube and more energy efficient than you might ever imagine.
世界上最强大的超级计算机将超出你的想象，只有方糖大小并且更加节能。