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er he questons that follow
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Read the passage and an5
auenes mater? Look ar am yo dlecnonic dericee fromm laptops pm
n an your wareh。 Thoee dlectronice are BKHin8 more
smartphones to Kindles or iPads e
waycfmdent evureaune kes emergy than ther ueed to But 9 do Peohie at
edy md wanteircapebihtesto increase The batenr rhoWY mheh eneri7you cn
aoreimaghenvolume and weight is the defining factorin his hole hd
men there are electnic emrs_TFwe can make bateries with double the "enersy
ansity oftoday's and drive the pice below 8200 per kilowatt-hour (Versu5 8300 to 8900
todiydependtmg on Qpe and wetghO。we could have aa car with a 800.mile range_ eve
wi me aircondidoner or heater nmmed up。 ttat would sel for 825.000 to $30000. The
Depatment of Enensys gosl is to get batedee to 8150 per lowatrhonr by the year
200
Tinalyrthemeare Ne Yuitiyrscale batees which are very imporlant forrenewable
werey Wind and solr power are going to become more common。 Wind js alheady the
second heqpest fom ornew emeret。 aher ahale es and it wil beeome the cheapew
iin a decade Right now YuGli comparies get about 4 ereent or their power from
rerewatblesourees oter tan "ivdro 一and ttat 4 parcentis roughiy al fom wind We
rmey eea day when renewables make up 0.60.70 perventorthe tol supply orenery
KUio compenes wil eed batedee to wahilze the How orremewsble cnersy into the
*gTGL and alo require a beter dletiial conrol ystem to 。do the swiching People
Tey heve hewe aeres tther homes inaead orgenemors
4 or this would create s huge market But the cfeects woutd be more protomd
Tere are mountaimous places even in he DS。 ke weem Alaskan thet wi newer be
でemmeed to the decrdc grid There arent enough peopls,and the dasnees are teo
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“eroy or cheaper Once you have "storeg ae
fe syeteme you can put a Hitle Ysolar
