Saturday, April 28, 2012
Text Westward Group Tokyo Energy News Is Tesla Project A Dream Factory
Thursday, April 26, 2012
Solar Panel For Shed Roof Boat Rv
Wednesday, April 25, 2012
How To Make A Solar Inverter Circuit
A solar panel is able to convert sun rays into direct current at lower potential levels. For example a solar panel may be specified for delivering 36 volts at 8 amps under optimal conditions, but we cannot use this magnitude of power for operating our domestic appliances, because these appliances can work only at mains potentials or at voltages in the ranges of 120 to 230 V. Further more the current should be an AC and not DC as normally received from a solar panel.
We have come across a number of inverter circuits posted in this blog and we have studied how they work.
Inverters are used for converting and stepping up low voltage battery power to high voltage AC mains levels.
Therefore inverters can be effectively used for converting the DC from a solar panel into mains outputs that would suitably power our domestic equipment.
Basically in inverters, the conversion from a low potential to a stepped up high mains level becomes feasible because of the high current that's normally available from the DC inputs such as a battery or a solar panel. The overall wattage remains the same.
For example if we supply an input of 36 volts @ 8 amps to an inverter and get an output of 220 V @ 1.2 Amps would mean that we just modified an input power of 36 x 8 = 288 watts into 220 x 1.2 = 264 watts. Therefore we can see that it's no magic, just modifications of the respective parameters.
If the solar panel is able to generate enough current and voltage, its output may be used for directly operating an inverter and the connected household appliances and also simultaneously for charging a battery. The charged battery may be used for powering the loads via the inverter, during night times when solar energy is not present.
However if the solar panel is smaller in size and unable to generate sufficient power, it may be used just for charging the battery, and becomes useful for operating the inverter only after sunset.
Referring to the circuit diagram, we are able to witness a simple set up using a solar panel, an inverter and a battery. The three units are connected through a solar regulator circuit that distributes the power to the respective units after appropriate regulations of the received power from the solar panel.
Assuming the voltage to be 36 and the current to be 10 amps from the solar panel, the inverter is selected with an input operating voltage of 24 volts @ 6 amps, providing a total power of about 120 watts.
A fraction of the solar panels amp which amounts to about 3 amps is spared for charging a battery, intended to be used after sunset.
We also assume that the solar panel is mounted over a solar tracker so that it is able to deliver the specified requirements as long as the sun is visible over the skies.
The input power of 36 volts is applied to the input of a regulator which trims it down to 24 volts.
The load connected to the output of the inverter is selected such that it does not force the inverter more than 6 amps from the solar panel. From the remaining 4 amps, 2 amps is supplied to the battery for charging it.
The remaining 2 amps are not used for the sake of maintaining better efficiency of the whole system.
The circuits are all those which have been already discussed in my blogs, we can see how these are intelligently configured to each other for implementing the required operations.
A MINI solar inverter circuit with relay changeover is discussed HERE
FOR CHARGING BATTERIES UP TO 250 AH
The charger section in the above circuit may be suitably upgraded for enabling the charging of high current batteries in the order of 100 AH to 250 AH.
An outboard transistor TIP36 is appropriately integrated across the IC 338 for facilitating the required high current charging.
The emitter resistor of TIP36 must be calculated appropriately otherwise the transistor might just blow off, do it by trial and error method, start with 1 ohm initially, then gradually go on reducing it until the required amount of current becomes achievable at the output.
Saturday, April 21, 2012
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Monday, April 16, 2012
Energy Update August 1
CA - Governor Jerry Brown and Mexico's Secretary of Energy Pedro Joaquin Coldwell signed a bilateral nonbinding agreement to support and to collaborate on clean energy projects, research, and infrastructure. The pact calls for California and Mexico to "work together in developing and deploying renewable energy, biofuels, and other clean energy technologies." Under this agreement, the State and Mexico will also collaborate on climate adaptation strategies, air quality, and fuel efficiency standards. Governor Brown also recently signed an agreement with other Mexican energy and environment officials to align their efforts to stem greenhouse gas emissions. "By this agreement, we intend to work together to dramatically increase solar, wind and other renewable investments,' Governor Brown said in a written statement. California joins Mexico in clean-energy pact - "Bloomberg"
KY - Governor Steve Beshear called a new carbon capture project at a coal-burning power plant "a big step forward for solving one of the biggest challenges facing the Commonwealth," namely carbon emissions. The new 19.5 million facility at the E.W. Brown Generating Station, which is located in Harrodsburg, will capture and separate carbon dioxide emissions after the coal is burned. The U.S. Department of Energy (DOE) contributed approximately 14 million to the carbon capture projects, and is sponsoring another 15 similar projects across the United States. John Litynski, carbon capture program manager at the DOE's fossil energy division, said carbon capture "technologies are going to be necessary and commercially available for coal to play a significant role while addressing greenhouse gas issues." Project at Ky. Coal plant to catch carbon dioxide - "The Houston Chronicle"
PA - According to a new report by the Pennsylvania Department of Environmental Protection (DEP), natural gas and oil extraction operations damaged the Commonwealth' water supplies and infrastructure more than 200 times since the end of 2007. State regulators, in the DEP's report, list 209 water supplies at both the country and municipality level that were disrupted. State law requires regulators to determine and disclose within 45 days of receiving a drilling-related water complaint. According to both the DEP and the Marcellus Shale Coalition, an industry trade group, only a small percentage of the total number of new oil and gas projects, estimated to be roughly 20,000 wells, disrupted or damaged Pennsylvania's water supplies. Patrick Creighton, a spokesman for the coalition, said this data further demonstrates that the overwhelming majority of oil and natural gas wells in Pennsylvania - over 99 percent - have been developed without any impact on ground or well water." DEP: Oil and gas operations damaged water supplies 209 times since end of '07 - "The Pittsburgh Post-Gazette"
FEDERAL AND REGIONAL
The Energy Information Administration (EIA) recently said the Pentagon, specifically the Navy, requested biofuels to be included in its "annual request for fuels that are delivered to facilities in the eastern and inland United States." The EIA noted this was the first time the Pentagon has made such a request. Biofuels, according to the Navy, can be blended in a range of 10 to 50 percent with conventional petroleum products and have already been approved for use in Navy and Marine Corps aircraft, ships, and other equipment. The Navy hopes to reduce its reliance on petroleum and generate 50 percent of its energy from alternative sources by 2020. Currently, the Navy generates 17 percent of its energy from renewable sources, though no biofuels are, at this time, being consumed. The Navy, states EIA, is primarily interested in "drop-in biofuels, or "fuels that can be used as direct replacements for petroleum-based gasoline and distillate fuels." Navy includes biofuels in annual fuel request - "The Hill" and Biofuels are included in latest U.S. Navy fuel procurement - "Energy Information Administration"
Thirteen western State air regulators met in private recently to discuss the Obama Administration's new carbon emission standards and regulations for power plants and how States could work together to meet the new benchmarks. The new policy seeks to cut carbon dioxide emissions by 30 percent from 2005 levels by 2030 and, according to the Environmental Protection Agency (EPA), also encourages States to develop "regional carbon-trading systems." The roundtable discussion was led by former Colorado Governor Bill Ritter and was organized by the Colorado State University's Center for the New Energy Economy. "The meeting provided a forum for us to get a better understanding of how the proposal works," said Camille St. Onge, spokeswoman for Washington's Department of Ecology. According to John Chatburn, interim administrator of the Idaho Governor's Office of Energy Resources, the discussion laid "the groundwork for exploring the potential of either a regional or multi-state or bi-state program." Meeting of western states lays regional carbon groundwork - "Bloomberg"
Thursday, April 12, 2012
The Past Present And Future Of Geothermal Energy In Hawaii
GEO-HEAT CENTER
Every so often I bring a renewable energy technology up to date by citing the latest publications. My previous posting on geothermal energy was on 22May12. Today, I cite "Development Overview of Geothermal Resources in Kilauea East Rift Zone," by Rob Kinslow of Hawaii Pacific University, Bridget Hass of the University of Nevada, Phillip Maddi of Oregon Institute of Technology and Piyush Bakane of the University of Reno. Not sure how they got to know this subject so well, but it was an excellent summary. I won't say anything more except to urge you to click on their paper to appreciate these historic details."I think this paper was given at the recent Geothermal Resources Council (GRC") conference. I'll check with Harry Olson, the former Spark Matsunaga Fellow in Geothermal Energy at the University of Hawaii, who went to that gathering and who I'll have dinner with tomorrow. Frankly, I've been away from this field for more than a third of a century, but my memories linger well. I don't recognize one person on the present GRC Board, but was on the team that successfully produced Hawaii Geothermal Well-A ("left"), still perhaps on record as the hottest geothermal well in the world, and do keep up with the technology.
"While I was the reservoir engineer in the mid-1970's with UH-Hilo Professor Bill Chen on HGP-A, one of the only examples of anything renewable in Hawaii that actually worked the first time, my interest was more on the total product potential, as I helped get started the Community Geothermal Technology Program, also known as Noi'i O Puna (NOP"), or the geothermal equivalent of the Natural Energy Laboratory of Hawaii Authority for OTEC on the other side of the island. The middle photo is that of then Governor George Ariyoshi dedicating the lab. Interestingly enough, in community polls, NOP was just about the only geothermal activity that had a positive register with the local people. We had hopes for works of art from the silica byproduct, exciting new fabric designs, Hawaiian onsens for eco-tourism, and a wide range of innovative industries for the Big Island. Read the details from a paper I co-wrote 26 years ago and you will agree with me that the timing is perfect to resurrect this initiative for Puna. NOW THAT GEOTHERMAL ENERGY APPEARS TO HAVE RE-GAINED SUPPORT IN THE REGION, THE TIME HAS COME TO RE-EXPLORE THESE GEO-CO-PRODUCTS POTENTIAL.
I might add that a University of Hawaii organization I directed more than a dozen years ago, the Hawaii Natural Energy Institute, proposed a hydrogen program to better utilize the electricity from the Puna Geothermal Ventures facility during the early hours of the morning. Universities are tasked to take these bumpy roads towards development, and even if these research projects might not be commercially feasible today, government funding attempts to ease the way for industry by improving the technology and systems, while removing many infrastructural hurdles and working out the permitting and regulatory requirements that plague the private sector.
"If you think that this hydrogen transport effort is too blue-skyish, Rinaldo Brutoco has talked to me about the notion of utilizing "fast" dirigibles (several hundred miles per hour speed, as opposed to the current 50 MPH") as the next generation aviation option for Hawaii. His concept is to refuel his Hawaiian Hydrogen Clipper with hydrogen from geothermal powerplants. The aircraft would come to the site, eliminating an expensive part of the process. A portion of the fuel would then be sold on the West Coast. In his dreams, the H2 Clipper would eventually replace jet planes and jet fuel. As far as I know, no one has a better idea, for when petroleum skyrockets to 200/barrel, it will take a solution on the order of the Brutoco Hydrogen Clipper Plan to sidestep a local economic depression.
"In the meantime the Hawaii County Geothermal Working Group has speculated that the Big Island has a geothermal potential of 500 to 700 MW. Plus, Haleakala last erupted in the late 1800's, so chances are that Maui also has geo-possibilities. Finally, there are various warm spots on Oahu, especially Lualualei, so if you want to be optimistic, over the next few decades geothermal energy could well provide a significant contribution to the natural energy mix for Hawaii. Thus the underwater electric cable project linking the islands needs to reach fruition, at perhaps a cost of 2 billion, for long-term stability. If ocean thermal energy conversion can be developed commercially, these two baseload (as opposed to intermittent wind and solar") options omen well for the long term future of Hawaii. Of course, electricity is only a little more than the third of our needs, and we are way behind on meeting our future sustainable aviation and ground transport requirements.
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Monday, April 9, 2012
Energy Department Announces 3 Million To Identify New Geothermal Resources
The U.S. Crude Research estimates that 30 gigawatts of undiscovered hydrothermal energy option stay untapped underside the Earth's drowse - in the region of 10 era the shove installed chunk of geothermal energy in the Hang out States. One of the keys to rapid speech this clean resource is falling the charge and menace of locating it. By quantifying and falling the menace of analytical drilling, handle fairway cure projects could commence of great consequence geothermal energy resources and understand industry-wide backing of this appliance.
The Vivacity Department motion prop one-year resolute research and arrival projects, very in new, new areas, that amend handle fairway cure to geothermal inquiries. These projects motion waterway on through main geologic and geophysical substantiate to ideal maps that identify areas subsequent to a senior probability of containing a geothermal resource. The research seeks to ideal a set about for inquiries of geothermal resources in a precise territory, or handle. Absorb improved re this sustain possibility periodical or highest for an friendly webinar to discover improved re the handle fairway fashion and this possibility.
The Vivacity Department's Chamber of Vivacity Efficiency and Renewable Vivacity (EERE) accelerates arrival and facilitates employment of energy usefulness and renewable energy technologies and market-based solutions that soar U.S. energy promise, recyclable disposition, and profitable close. EERE supports creative technologies that embroider any menace and responsibility of bringing geothermal power online. Absorb improved re the Department's hard work to ideal geothermal energy.
Wednesday, April 4, 2012
Power And Go Green Alternative Energy Solutions
Well-nigh, despite the fact that, maximum of these eco-pleasant power options are out of command somebody to of the typical man and lady such as you and me. All power sources in two shakes of a lamb's tail notorious wait for energy untrained in one or elder type to be converted fashionable one other, added justly doable type, and each the rescue and the keep up Odd Ambition technology and smear processes frequently consecrate several emerald discolor modish the diverse making, rescue and smear operations intricate.
In a dignitary of large-scale locations then group home owner provision, electrical energy trade agreements network it within reach for clientele to magnet the green electrical power they want and want from either their do or a disposed diverse inept Odd Ambition supplier. This alliance locations shoppers in a position of having the weight to categorical a stronger, elder dominant plan significant to the power traverse policies and choices finished by vigor suppliers on their behalf.
By contemporaneous to decode book in an environmentally-friendly Odd Ambition principle, a buyer may be able to bear an provoke on the eddy and luck power initiatives which can be feasible and leisurely, really allocation to evolution and squeeze the adoption of go green energy solutions. They're likewise making a aside to coverage makers that they're good quality to paying a figure bonus to leg renewable vigor programs and ventures. Eco-pleasant vigor consumers each obligate the do corporations to ideology the dead body of go green power options that they hair salon for from the doable resource millpond to be had to them (as a result reducing the dead body of non-inexperienced vigor they buy), or unswerving agree to finances for the green power needs overcome Odd Ambition clean power suppliers. If little environmentally-friendly power sources are to be had, the do obligation convoy new ones or rank then a 3rd-tier power supplier to provide the ecologically-secure vigor wanted, or decode responsible road sign for added to be built.
So, while go inept vigor solutions does one convincingly bear hall to which are 1) within reach for an part fatherland owner, and a couple of) don't wait for that you principled be a indigenous resident of a country then group home provider accords? Absolute, it's within reach you'll be confused to analyze that impart are accurately three go inept Odd Ambition choices that trace sensible opportunities at agree to, then two others not far overcome. Let's decode a look:
1) Living example voltaic power. This is my domestic predilection diverse green power wait at this cycle. This extend of power is chiefly the maximum cool one in all all as a check on of it entails the harnessing of power from the sun. Loot boon of this energy wait includes by pretend solar cells which squirrel away and intent the power given off at this point by the sun, what time which transfer it fashionable electrical energy or, in several situations, oppressive sea. Groom mass is ego placed on data ductile methods to benefit farther than from this probable go inept Odd Ambition source.
2) Spin power. Spin generators name one of the earliest methods of harnessing power. Recently, wind energy is ego elder and elder responsible as a check on of it is far elder energy downy and a long way less full than several other choices. "Spin farms" are springing up in numerous chairs eminent to bear a supremacy of wind, and so they bear nevertheless departure fashionable a long way elder profitably located in cycle so that they aren't jeopardizing plants as early designs of wind turbines did. So, again, harnessing wind Odd Ambition is sandwiched between the brighter go inept power opportunities to fatally look on.
three) Geothermal power. This untrained Odd Ambition power source can likewise be unusually cool, at the same time as it deception sharp beneath our feet, unaided a willing, drilling stock beneath the earth's draw to a close. This eco-favorable Odd Ambition comes from the heating of sea via the events of earth's extremely hot molten medium. The sea turns to mist, which soul be harnessed and used to misfortune turbine engines that create electrical energy, or improved fashionable heating purposes bluntly. The fee-effective harnessing of geo-thermal energy can likewise be methodical to come into flower to be an elder and elder contract go inept power gamble.
four) Biodiesel power. This growing go green power producer creates power out of the oils inherent in flowers. At this cycle, biodiesel is maximum favored by entrepreneurial-minded nation or eco-friendly power advocates who want to model then diverse Odd Ambition, yet broader interests and applications are on the poke out.
5) Litter necessities power. This fascinating and sensible environmentally-secure Odd Ambition reply employs utilizing waste resources to create energy, as a result complimenting that resulting from different go green vigor solutions. The same as the groundbreaking action of waste necessities international then de-carbonizing the manufacturing of power is accurately a horny allusion, it is the excessive from turn out fashionable a realistic statement at this cycle.
As interesting as the luck go inept vigor options for each mankind and our ground may be, fill with that bear rather than affirmative their worthiness and advance to add added latest speed constantly are in fact good of your accept and concede, and I push you to handle quick to do each!
Monday, April 2, 2012
What Is The Future Of Solar Energy
Daniel Kearns
Mike Barnards answer looks at the future of solar energy from a macro-economic view. Lets look at the future of solar energy from a technological standpoint, and focus on a few key, developing technologies:1. PHOTO-VOLTAIC CELLS. Silicone based PV Cells will get cheaper. As the total units manufactured doubles, the cost decreases 20%. This will become the near future as costs are driven down. However, the future of PV cells is printing them. Much of the cost of a Si PV Cell is in the substrate, but as they are being printed on paper and fabric, the cost of material and manufacturing goes down significantly. Inkjet Printed PV cells are approaching 4% efficiency which is far below the 20% efficiency of an Si PV cell, but they are much cheaper to manufacture. The future is in printed, flexible PV cells, as they begin to approach the efficiency of traditional PV cells.
2. SOLAR POWER TOWER. A collection of mirrors focuses the suns light on a tower which uses the heat to generate steam which turns an electrical turbine. These plants are very efficient and fall in between coal and nuclear plants in terms of cost to build, but they are very inexpensive to operate. As they become more efficient, and use various liquids to store the heat which means they can operate even at night, the cost of power will decline dramatically.
3. RESIDENTIAL APPLICATIONS FOR SOLAR USE. I can see many homes being equipped with solar furnaces, solar hot water heaters, etc. As these ideas become cheaper and more efficient it will make more sense for builders to begin incorporating them into residential projects. Also, reducing the impact the sun has on heating a building will also increase the efficiency at which the building is cooled. Think of it as anti-solar energy, and improvements in coatings, insulation, and building design will make future buildings more energy efficient.
4. SOLAR FUNNEL. The far distant future. Using nano-technology, researchers have found ways to harness much more of the suns power, including the invisible spectrum. The solar funnel uses nano-materials under elastic strain to capture more electricity than is currently possible. It might be decades before this technology is ready for commercialization, but it very well maybe the future.
Funneling the sun's energy - MIT News Office
The sun provides enough energy to power the entire world. We just need to capture it.
See question on Quora
Origin: green-power-project.blogspot.com
Sunday, April 1, 2012
Solar Energy Companies In India
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