首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Sally Kemmerer has, so far, escaped Northern California’s rolling blackouts. But up on the roof for her Oakland home, workers
Sally Kemmerer has, so far, escaped Northern California’s rolling blackouts. But up on the roof for her Oakland home, workers
admin
2013-01-29
8
问题
Sally Kemmerer has, so far, escaped Northern California’s rolling blackouts.
But up on the roof for her Oakland home, workers are tapping into, perhaps, the most reliable power source, the sun. It could mean no more worries about blackouts or power rates.
Sally Kemmerer, homeowner says, "I hope that we’ll be able to zero out, you know, our electric bill. I mean that’s definitely our goal."
Turning the sun’s rays into electricity is, of course, nothing new.
But California’s power crisis has cast a new light on the technology.
Gary Gerber, a solar power contractor, says, "I might have been getting, say three phone calls a week a couple of months age. I’m getting six a day now, it’s completely crazy."
Alternative energy is even more attractive, thanks to a state rebate program. So far this month, California’s energy commission has received 200 project applications. That is more than the number of applications all last year.
Putting in a solar roof is still a relatively expensive proposition. This project cost around 45000 dollars. Even taking into account the state subsidy of 12000 dollars, that leaves a net cost to the homeowner of around 33000 dollars.
Sally says, "We were happy to find out that, eventually, the system should pay for itself, you know 20-years, maybe."
Aaron Wellendorf has had a p-v (or photovoltaic generator) for more than a year. Like most solar systems, his is not off the grid completely the utility still kicks in at night, or when there’s no sun. But when there is bright light, things change.
Wellendorf says, "I’m turning my meter backward with extra power that I’m generating." Backward?
That’s right! Wellendorf’s meter tracks how much power goes back into the utility grid. Last year all the paid for electricity was a service charge. That charge was around five dollars a month.
In fact, even after powering his super-efficient household appliances and his converted electric truck, Wellendorf generated a net surplus of more than 2000-kilowatt hours.
Unfortunately, state law doesn’t require the utility to pay him for that. Wellendorf says, "I don’t get it in money, I just get the satisfaction of helping out the power grid."
And, he gets the satisfaction of being energy self-sufficient.
What does "to zero out" mean?
选项
A、to lose a special item or treasure
B、to gain solar power
C、to pay for more reliable electrical power
D、to owe the electric utility company nothing
答案
D
解析
zero out使……变为零,这里使电费变为零,即不用供电公司的电。
转载请注明原文地址:https://jikaoti.com/ti/O4qYFFFM
0
考博英语
相关试题推荐
ThearrivalonourTVscreensof"ViceVersa",thestorywhereapompousfatherchangesplaceswithhisdowntroddenschoolboyso
Thegreatchariotofsociety,whichforsolonghadrundownthegentleslopeoftradition,nowfounditselfpoweredbyaninterna
AsDrSamuelJohnsonsaidinadifferenteraaboutladiespreaching,thesurprisingthingaboutcomputersisnotthattheythink
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualor
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualor
InNovember1970YukioMishima,togetherwithsomeofhisfanaticalfollowersfromtheultranationalisticShieldSocietywhichh
The______manuscriptsarestillabletotellalotabouttheauthorwhocharmedtheworldwithhisworksseveralhundredyearsag
Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontothewhole
Today’sworkerisnolongerwillingtoworkinanauthoritariananddehumanizingenvironment.Workerswantmeaningintheirwork
AtthemomenteverycultureinBritainhasasimilarphilosophyasfarassize______;ifyouwanttolookgoodandbedesirable
随机试题
在DreamweaverCS5中,关于图片超链接,下列说法不正确的是_______。
患儿,1岁。发热、咳嗽、流涕3天入院。入院后体温持续不退,达40℃,呕吐、谵妄,抽搐2次。体检:胸、腹部及四肢皮肤有瘀斑,前囟隆起,双肺呼吸音粗糙,可闻及少许干性哕音,腹软,脑脊液外观混浊。为明确病原菌,应首先进行的检查是
只在桁架节点上布置荷载时,则桁架杆件产生的力是()。
下列适用《政府采购法》的主体包括()。
有两个投资方案:甲方案的标准离差为4.86%,乙方案的标准离差为2.31%,可以断定乙方案的风险一定比甲方案的风险小。()
以下属于认知过程的有()。
学习长方形的面积计算公式后,再学习正方形的面积计算公式的学习类型是()。
21世纪高技术的核心是()。
完整的计算机软件指的是
Thirtyyearsago,anyoneblaminglonelinessforphysicalillnesswouldhavebeenlaughedat.Butasscientistsstudieddifferent
最新回复
(
0
)