green electricity 綠色能源PPT課件

1、Energy Star Smart-gridContentsA brief introductionEnergy efficiency Sustainable energy research1234第1頁(yè)/共20頁(yè)Introduction Sustainable energy (or green electricity ) is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet

2、 their needs. 可持續(xù)能源 是可持續(xù)的能源供應(yīng)，以滿足目前的需求，又不損害未來(lái)后代滿足他們的需求的能力。促進(jìn)可持續(xù)能源的技術(shù)，包括可再生能源，如水電，太陽(yáng)能，風(fēng)能，波浪能，地?zé)崮?，潮汐能，同時(shí)也包括設(shè)計(jì)為提高能源利用效率的技術(shù)。第2頁(yè)/共20頁(yè) Effectively, the provision of energy such that it meets the needs of the present without compromising the ability of future generations to meet their ownneeds. .Sustainabl

3、e Energy has two key components: renewable energy and energy efficiency. Renewable Energy and Efficiency Partnership (British) “實(shí)際上，提供能源滿足現(xiàn)在的需求，而又不損害未來(lái)后代滿足他們自己的需要的能力。. - 可持續(xù)能源有兩個(gè)主要組成部分：可再生能源和能源效率?！?- 可再生能源效率伙伴關(guān)系計(jì)劃（英國(guó)）第3頁(yè)/共20頁(yè) Energy which is replenishable（可補(bǔ)充的） within a human lifetime and causes no

4、long-term damage to the environment. Jamaica Sustainable Development Network “能源是在一個(gè)人的一生期間是可補(bǔ)充的，并不會(huì)造成長(zhǎng)期的對(duì)環(huán)境的破壞?！?- “牙買加可持續(xù)發(fā)展網(wǎng)絡(luò)”第4頁(yè)/共20頁(yè)Energy efficiency and renewable energy Renewable energy and energy efficiency are sometimes said to be the “twin pillars” of sustainable energy policy. Both resource

5、s must be developed in order to stabilize and reduce carbon dioxide emissions. Efficiency slows down energy demand growth so that rising clean energy supplies can make deep cuts in fossil fuel use. If energy use grows too fast, renewable energy development will chase a receding target. Likewise, unl

6、ess clean energy supplies come on line（投入運(yùn)行） rapidly, slowing demand growth will only begin to reduce total emissions; reducing the carbon content of energy sources is also needed. Any serious vision of a sustainable energy economy thus requires commitments to both renewables and efficiency. 第5頁(yè)/共20

7、頁(yè)Energy Star Energy Star is a company provides energy efficiency products for individuals or businesses. It is originated in the USA, but now it becomes an international standard energy efficiency provider. If you see the Energy Star label on a laptop or printer, that means the product is in the Ene

8、rgy Star program which is aiming at helping customers to save money and reduce green house gas. 第6頁(yè)/共20頁(yè)Smart-grid technology Smart grid refers to a class of technology people are using to bring utility （實(shí)用）electricity delivery systems into the 21st century, using computer-based remote control and a

9、utomation. These systems are made possible by two-way communication technology and computer processing that has been used for decades in other industries. 第7頁(yè)/共20頁(yè)Green Energy Green power is a subset（子集） of renewable energy and represents those renewable energy resources and technologies that provid

10、e the highest environmental benefit. TheU.S. Environmental Protection Agency defines green power as electricity produced from solar biogas（沼氣）geothermalhydroelectricitywindso on 第8頁(yè)/共20頁(yè)Solar The primary obstacle that is preventing the large scale implementation of solar powered energy generation is

11、 the inefficiency of current solar technology. At this rate, many experts believe that solar energy is not efficient enough to be economically sustainable given the cost to produce the panels （鑲嵌板）themselves.第9頁(yè)/共20頁(yè)MITs Solar House#1 built in 1939 used seasonal thermal energy storage(STES) for year

12、 round heating A solar trough array is an example of green energy 第10頁(yè)/共20頁(yè)Wind Wind energy research dates back several decades to the 1970s when NASA developed an analytical model to predict wind turbine（渦輪） power generation during high winds. Today, both Sandia National Laboratories and National R

13、enewable Energy Laboratoryhave programs dedicated to wind research. A wind farm is a group of wind turbines in the same location used to produce electric power. A large wind farm may consist of several hundred individual wind turbines, and cover an extended area of hundreds of square miles, but the

14、land between the turbines may be used for agricultural or other purposes. A wind farm may also be located offshore.第11頁(yè)/共20頁(yè)A 01 KiloWatt Micro Windmill for Domestic Usage5 Kilowatt Vertical axis windturbine by Green EcoSys & Electron Solar Energy第12頁(yè)/共20頁(yè)第13頁(yè)/共20頁(yè)Ethanol biofuels（乙醇生物燃料）（乙醇生物燃料

15、） The largest single use of ethanol is as a motor fuel and fuel additive. More than any other major country, Brazil relies on ethanol as a motor fuel. Gasoline sold in Brazil contains at least 25% anhydrous（無(wú)水的）ethanol. Hydrous ethanol (about 95% ethanol and 5% water) can be used as fuel in more tha

16、n 90% of new cars sold in the country. Brazilian ethanol is produced from sugar cane and noted for high carbon sequestration（隔離）. The US uses Gasohol (max 10% ethanol) and E85 (85% ethanol) ethanol/gasoline mixtures. 第14頁(yè)/共20頁(yè)Geothermal第15頁(yè)/共20頁(yè)Geothermal Geothermal energy is produced by tapping int

17、o the thermal energy created and stored within the earth. It is considered sustainable because that thermal energy is constantly replenished. However, the science of geothermal energy generation is still young and developing economic viability. Several entities, such as the National Renewable Energy Laboratory and Sandia National Laboratories are conducting research toward the goal of establishing a proven science around geothermal energy. 第16頁(yè)/共20頁(yè)Hydroelectricity Hydroelectricity is the term referring to electricity genera