How to become a green energy engineer?
I want a job that means something. Not just getting through it to get a paycheck. So this is why I chose to work with renewable energy. I’m just not sure what steps to take to get where I want to go. I can’t find any college around here (Columbus, Ohio) that can give me the courses needed. Maybe I’m not using the correct terminology to search for the classes. But I need any intelligent person to help me please!
Register here https://www.coursera.org/ and here https://www.edx.org/ and try find course about green engineering.
What specific training or degrees are emplyers looking for when it come to LEED/ Alternative/Renewable Energy?
I am looking for specific details of how to pursue and crosstrain into Alternative/Renewable energy fields of solar, wind, geothermal, and hydorenergy.
I have been in Stationary Engineering for 16 years so, I am looking to be able to install, repair, and be hands on. I also want to be able to design and then install.
What kind of job would you like to do? There are a lot of different people working in alternative energy. It’s like saying you want to work with food–do you mean a farmer? A chef? A grocery store manager?
With alternative energy, you could be an investor who funds the technology, an engineer who designs new technologies, an advertising agent who markets the technologies, a lawyer who works for those companies, the guy working under the sun who physically installs them, etc. Etc. Etc.
What is your background now, and in what capacity do you want to work in alternative energy?
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Suddenly Switching from gasoline based automobiles to electric powered. How would it affect our economy>?
I was chosen to pick a topic for debate for an English class, and I decided on whether or not switching to electricity based automobiles would be a smart thing to do if we had the option. I have to include such factors as economy, jobs that could be lost with the loss of oil companies, impact on the environment, etc. Any online sources would be greatly appreciated.
Also definitely gonna give a best answer to someone who answers, so please help!
The electric car was among the earliest automobiles — small electric vehicles predate the Otto cycle upon which Diesel (diesel engine) and Benz (gasoline engine) based the automobile. Between 1832 and 1839 (the exact year is uncertain), Scottish businessman Robert Anderson invented the first crude electric carriage. Professor Sibrandus Stratingh of Groningen, the Netherlands, designed the small-scale electric car, built by his assistant Christopher Becker in 1835.
Practical and more successful electric road vehicles were invented by both American Thomas Davenport and Scotsmen Robert Davidson around 1842. Both inventors were the first to use non-rechargeable electric cells.
What advantages do EVs offer? EVs produce zero emissions at the point of use. An electric motor is 400% to 600% more efficient than an internal combus tion engine. An EV, per mile, uses one-half the fossil-fuel resources an ICE consumes. An EV produces only 5% to 10% of the emissions of an ICE per mile traveled. All of the EV’s emissions occur at a (oil- or coal-fueled) power plant, which runs 400% to 500% more efficiently than an ICE and scrubs its own exhaust. EVs can use electricity from anywhere including sustainable energy resources (wind and sun). EVs are simple, silent, and affordable to operate.
Zero-Emission or Emission-Elsewhere? It is a major step for an automobile to no longer emit exhaust gases. In fact, it is nearly inconceivable. That’s why consumers will love zero-emission vehicles. They may not be driving a solar-powered car, but they will be helping the sun to once more shine through clear skies.
In the literal sense, of course, the EV is the “emission-elsewhere” car. The electricity to power the car has to be generated somewhere. And, though some energy is available from sustainable energy sources like wind, solar, and water power, the bulk comes from coal- and oil-fueled power plants. Isn’t this just transplanting the problem somewhere else?
The answer is both yes and no. Yes, the pollution is transferred to another region. However, this matter has been scrutinized extensively by the U.S. Depart ment of Energy and several California agencies charged with air-quality manage ment. The bulleted list above reflects their findings.
EVs are very efficient. They have to be. A pound of battery has 1/100 of the energy of a pound of gasoline. On average, a 30 mpg ICE car uses only 5% to 10% of the energy of its fuel, whereas the EV converts 70% to 80% of the battery’s pack into propulsion, for the same mile.
Electric car operating costs can be directly compared to the equivalent operating costs of a gasoline-powered vehicle. A litre of gasoline contains about 8.9 kW·h of energy. To calculate the cost of the electrical equivalent of a liter of gasoline, multiply the utility cost per kW·h by 8.9. Because automotive internal combustion engines are only about 20% efficient, then at most 20% of the total energy in that liter of gasoline is ever put to use.
Also Check http://en.wikipedia.org/wiki/Electric_car
What is the most sustainable way to purchase soft drinks?
My family really enjoys soda pop, vitamin water, etc., but I see all of these plastic bottles and aluminum cans, and even though I take them to recycling, I know that a lot of energy and water are expended in making and recycling those containers. Any advice on how we can still enjoy soft drinks in a more sustainable way?
You can purchase from local company by supporting them
you can purchase value pack which mean instead of 24 pack, you can buy a 2L bottle instead in order to reduce waste.
Make sure you recycle all empty bottles and cans
make sure you purchase those ones that can be recycled.
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how much of the earth do we need to cover with solar cells to meet current energy demands?
If the world’s current power demand is 14TWH and the Sun produces 120000TW/Y or around 14TW/h. how much area of the earth would we need to cover in solar panels to reach current energy demands?
Hey Brian, interesting question, and one that gets to the heart of many renewable energy myths today. Your explanation might have a couple apples vs oranges. The sun produces much more power than 120,000 terawatts, or terawatts per year, but I’m not sure if TW/Y represents either of those. Total electrical energy use on our globe is about 15 terawatts continuously, or 132,000 TW hours each year. Since solar panels are about 12 to 14 % efficient today, it would take an area of 192 square miles to produce that much power. Problem is, you would need it to work 24/7, and most places on our globe are dark at night. Accomodating for night time, and twilight hours in the morning and evening when the panels would be operating below peak power, the number jumps to about 890 square miles, or about 39,000,000 acres. That sounds huge, but consider that Rhode Island takes up over 1500 square miles, and is one of the smallest states in the US, really that scenario is feasible. The fact is we are never going to do that. The cost, the enourmous demand for silicone, wiring, grids, and so on make it totally impractical. There is also the fact that Rhode Island is pretty cloudy.
Now enter the Germans, they have a fantastic plan to mine solar power from the Sahara Desert. It doesn’t involve solar panels, instead they are going to use solar thermal collectors that will heat oil to several hundred degrees, which will be circulated back into huge insulated tanks, then the hot oil will be used to boil water into steam ,which will turn a steam turbine. This idea has several advantages. First, since we can use both the light of the sun, and its resultant heat as opposed to a silicone panel, which uses only the incoming photons, the efficiency jumps to about 60%. Second, since oil does not boil until around 550 degrees, we can use the stored hot oil well into the night until it cools substantially. Now we have access to solar power at night. And the concentrators and oil(which gets continuously recycled each day) cost much less per unit power than any panel in production today. Since the efficiency is much higher, they will only need 30 to 40 square miles to power all of Europe. If you want to check it out, google, “North African Solar Project,” and read some of the resulting websites. If the system works as well as they plan, it will run most of Western Europe, and then we will probably have one in our desert southwest a few years later. This concentrator will not offset any wildlife, beyond a few scorpions and rattlesnakes living in the far out areas of the desert, and since they will be using sea water to boil into steam, the byproduct of the electrical production will be fresh water. That fresh water will be used for irrigation to farm small quantities of sunlight intensive farm stock in what is now a completely dry desert. Adding small amounts of plant life to the northwest corner of the desert where none exists now will not alter the climate, but does offer another opportunity for carbon to be converted to oxygen, reducing the CO2 content of the atmosphere slightly. There will be jobs there, installation, technicians, maintenance and operations, and as long as the sun shines in the desert, we won’t run out of fuel.
We’ve been powering our home for 11 years now on wind and solar power. I’ve learned many things during that time. One item is that there are two things in large supply in solar power, the sun, and missinformation. Lots of people have been posting interesting “facts” here about solar and wind power, having never laid a hand on a panel or wind turbine. Wind turbines do not kill as many birds each year as living room windows do, powering homes with solar panels does not require massive amounts of space, silicone panels do not need massive amounts of toxic chemicals to manufacture them, and people do not get cancer from spinning wind turbines. These are just a few of my favorites, there are many more. If you want to learn more about this technology, check out some sources below. Take care Brian, Rudydoo
Why do people wrongly believe that corn ethanol has a negative energy yield?
When every new study indicates otherwise. And ethanol plants are using renewable sources for power to save money.
Impressive statistics, Matthew. Didn’t realize wind power can be converted to ethanol.
Several new studies, including a gigantic one released this year from the US Department of Energy, show the corn to ethanol process to have a significantly larger positive net energy yield than previously shown. These improvements were largely due to greater efficiency modifications and technological advancements at ethanol plants. In some cases, specific ethanol plants have an almost infinitely positive net energy yield due to groundbreaking technologies used to power the plant such as wind turbine technology.
This study published in january 2009 shows the net energy yield of corn to ethanol to be +50% to 80%:
Here are the latest numbers from the Dept. Of Energy, published in May 2009. Go to page 16 of the 20 page summary. In the conclusions section the US DOE concludes that the entire corn to ethanol process yields at least 34% more energy that it takes to make the numbers could be as high as 67% due to rising corn yields secondary to farming improvements and ethanol plant technology improvements. The DOE concludes that corn ethanol is “energy efficient and becoming more energy efficient as time goes on”. They study also concludes that only 17% of the energy used to make ethanol actually comes from fossil fuels:
Lastly, some ethanol plants are producing ethanol and using virtually zero fossil fuels at all. Many are converting to wind power to generate the electricity for their plants. This makes sense for several reasons. First, wind and corn go hand in hand. The areas in the midwest that grow corn tend to be very windy in general. Secondly, the plants see this as a way to save huge amounts of money on energy costs. Thirdly, using wind turbines makes the net energy yield of producing ethanol even more hugely positive. Cornplus ethanol in Winnebago, Minnesota is one such plant that is producing ethanol from almost entirely renewable sources. Here are 2 links to read about it:
And here is one more study that shows corn ethanol yields 67% more energy than it takes to produce:
Now, I want to hear arguments from people that dispute these facts. All 3 studies mentioned above have been published in 2009. Can you provide a newer more current study that shows differently? If you want to argue that the yield is negative please back it up with FACTS and DATA and provide LINKS, as I have done. Otherwise your argument has no weight. If you are going to argue against the net energy yield of ethanol back up your argument with facts, not just your false beliefs. Then again, I guess ignorance is bliss.
Chui, please see my link which addresses the issue you mentioned. We have thousands and thousands of miles of unused land in the US to plant corn and other crops.
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are you serious about saving the environment?
are you serious about saving the environment? or just looking for an excellent and open career opportunity with nowhere to go but up, start working now to get your renewable energy training certificate.
And where does one get the certificate? =D
What course or certificate do I need to install solar panels on houses?
I am looking at installing solar panels and other associated energy efficient products in the community in Perth. I am trying to find out what the course is that I need to be able to set up grid connect solar panels. I am aware that an electrician will have to do the connection to the grid, but have herd that there is a 3 month course in Brisbane. Just wondering if there is the same thing in Perth.
I’m not really sure about a course that you need to install solar panels on houses. I’m doing certificate II in electrotechnology and I know that there is also a certificate IV in electrotechnology where you learn about renewable energy so i searched Google for a TAFE in Perth that offers this sort of course and found this: http://psc.central.tafe.wa.edu.au/Search/List.aspx?Keyword=renewable%20energy&CourseNumber=&CourseType=&DeliveryLocation=&InternationalProduct=&Status=&StudyMode=&AccreditationWeeks=&MOUP=&MOUC=&ASCO=&ANZSIC=&ReviewDate=&searchBy=adv¤tlyThisSemester=&availableNextSemester=&courseNationalNumber=
I hope this helps! (I’m actually thinking of installing solar panels when I’m older too)
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