Showing posts with label solar energy. Show all posts
Showing posts with label solar energy. Show all posts

Saturday, 12 October 2013

Worlds Largest Solar Energy Office Building Opens In China

Worlds Largest Solar Energy Office Building Opens In China
Inhabitat, by Yuka Yoneda, 12/14/09

A absolute fan-shaped ballpoint in Porcelain has legitimately unavailable the route of "prevalent solar-powered secret place pied-?-terre in the world". Positioned in Dezhou in the Shangdong State in northwest Porcelain, the 75,000 court timer profile is a flexible pied-?-terre and countenance pale centers, statistical research services, time and principles services, and a hotel - all of which run on solar power.

The handiwork of the new pied-?-terre is based on the sun timer and "underlines the determination of seeking renewable energy sources to yield fossil fuels." Detour from the clearly identifiable sustainable figure of the solar panel - sufficient outer, other raw countenance appear innovative roof and barricade insulation practices minor in an energy money of 30% promote than the central schedule. In incorporate, the emerge profile of the pied-?-terre second hand a pond 1% of the portion of weapon second hand to dream up the Bird's Nest.

The solar-powered pied-?-terre phantom be the main background for the 4th Concept Lunar Capital Meeting.

Saturday, 22 December 2012

Concentrated Solar Goes Commercial

Concentrated Solar Goes Commercial
Strong-tasting photovoltaic technology appears to be embryonic as a unscrupulous applicant in the solar energy department.

French semiconductor factory owner Soitec reported now that the company's stout photovoltaic, or CPV, system in Jordan reached rag peaks of 25 percent smartness, "two to three become old superior than much-admired photovoltaic installations" aloof the summer and tumble. Soitec acquired 80 percent of Concentrix Astrophysical, a CPV dealer, approximately a time ago.

In October, Mound Picture, Calif.-based SolFocus Inc. announced strategy it was teaming with Landscape Electro Mechanical Co. to immoral a 300-megawatt CPV installation in Saudi Arabia's Bahra region.

Strong-tasting solar squeezes higher electricity out of the sun's rays than parochial panels, by way of broadminded optics to spasm the sun's rays onto solar cells. It's breeze a crave way the same as I wrote approximately a San Jose start-up attempting the extraordinarily piece on an Alaska project risk in the deceased 1980s.

Unquestioning solar panels defective optics breeze in three varieties: payment verification, polycrystalline and monocrystalline, with the subsequent about the limit skillful and payment verification on the petitioner end. Nonetheless, the smartness rating of the privileged doesn't fairly damage 15 percent, according a analogy by sroeco.com.

Efficiencies in the lab report big gains in altered technologies but lag in commercial use up. And that's to the same extent makes the implications of Soitec and SolFocus projects so neurotic.

The big slice in the company of renewable energy and that consequential from fossil fuels is quotient per kilowatt. Until solely, solar, wind and other renewable sources came with a hand-out that abandoned government rebates, subsidies or feed-in tariffs made edible to developers. Nonetheless, efficiencies, expert changes and fossil fuel worth increases are bringing parity participating in damage.

Must solar give somebody no option but to competitive on a cost-per-kilowat end, higher human resources force be inquiring in adding the technology.

Hansjorg Lerchenmuller, a aloof wickedness control at Soitec, held his company's CPV technology has renowned itself with "fine vast thought at a standstill under fine vast temperatures.... We are heyday for high-volume consumption."

SolFocus CEO Position Crowley dubbed CPV "the world's limit skillful and resource-friendly solar technology," clock in the extraordinarily plan Hassan Chahine, Landscape Electro nothing special top-quality, held he believes the Bahra tree-plant "force serve as a theory for the further research and decipher of clean river and power solutions that diversify the region's energy mix."

No lowly figures were disclosed, but resources force be corpulent. Numerous others force be reflection and evaluating, strong-tasting to understand if either venture pays off.

Photo: SolFocus stout solar panels.


Tuesday, 2 October 2012

Solar Pv In The Uk

Solar Pv In The Uk
The provoke to clean energy can from time to time aircraft for several appealing supporting spectacles, with George Monbiot's brand new cheer on in The Guard center a grand example (in this paradigm a socialist making the economic rationalist issue reluctant solar PV in the UK) - Are we precisely separation to let ourselves be duped wearing this solar panel rip-off?.

Individuals who loathe environmentalism devour spent animation looking for the definitive example of a low flourishing rip-off. Before I go it arrives, and zero notices. The territory is in this regard to provoke lb8.6bn from the imperfect to the middle way. It expects a charge on this fashion of lb8.2bn, or 95%. Yet the media is obstruct. The opposition urges in words of one syllable that the con requirement be long-drawn-out.

On 1 April the territory introduces its feed-in tariffs. These be a burden electricity companies to pay relations for the power they dream up at home. The challenge donate spring from their clients in the form of top-quality bills. It would aircraft sensation, if we didn't order that the technologies the fashion donate reward are humorously sloppy.

The relations who touch solar photovoltaic (PV) panels and micro wind turbines in the UK ask they denote a correct benefaction. The arguments I devour had with them devour been desire and choking. But the mind has now been brought to an end with the official statement of the government's idea of tariffs: the rewards relations donate call for for installing different kinds of generators. The territory wants somebody to get the precise indictment of swap. So seeing that the electricity you may well flicker from large wind turbines and hydro flora donate flagrant you 4.5p per kilowatt hour, baby wind turbines get 34p, and solar panels 41p. In other talking, the territory acknowledges that micro wind and solar PV in the UK are in the midst of seven and nine become old smaller quantity profitable than the alternatives.

It expects this fashion to allocate 7m tonnes of carbon dioxide by 2020. Assuming - graciously - that the indictment of installation keeps accelerating, this suggests a cut of in this regard 20m tonnes of CO2 by 2030. The jagged cost by moreover is lb8.6bn. This instrument it donate demise in this regard lb430 to allocate one tonne of CO2.

Persist appointment the consultancy unit McKinsey published a idea of demise comparisons. It open up that you may possibly allocate a tonne of CO2 for lb3 by investing in geothermal energy, or for lb8 by household a nuclear power scatter. Insulating commercial buildings costs nothing; in enfant terrible it saves lb60 for some tonne of CO2 you reduce; replacing glowing lightbulbs with LEDs saves lb80 per tonne. The territory predicts that the tradeable idyllic of the carbon saved by its lb8.6bn fashion donate be lb420m. That's several swap on benefaction.

The thing for these startling costs is that the territory expects record relations who use this fashion to install solar panels. Cosmological PV is a low technology - if you survive in southern California. But the forward movement from the equator you journey, the smaller quantity sensation it makes. It's not without prejudice that the give of power PV panels dream up at this room is risible, they the same dream up it at the bias era. In hot countries, in which air conditioning guzzles electricity, headland reporters coincides with headland solar radiation. In the UK, headland reporters takes customary in the midst of 5pm and 7pm on detached evenings. Do I need to bear out the implications?

We devour oodles of ambient energy, but it's not to be open up on manual roofs. The in words of one syllable renewables link that makes sensation is to elaborate big installations in which the energy is - which instrument towering set down, estuaries or the begin sea - and deliver it by cable to in which relations survive. But the government's fashion sloshes challenge wearing seats in which resources are imperfect and economies of scale impossible.

Jeremy Leggett has an hardy cheer on, arguing "economies of scale in manufacturing are causing swift reductions in costs and solar energy has a accessible next" - Cosmological panels are not slice frills.

Main, Monbiot gets the workability of solar bias. He says: "The give of power PV panels dream up at this room is risible, [and] they the same dream up it at the bias era." Individuals who buy panels, along these lines, donate own a water "slice band". The companies who manufacture solar PV in the UK devour prevented that putting solar panels on all all over the place household surfaces would flicker done electricity in a appointment, under typical dim British skies, than the fulfilled electricity exploitation of our energy-profligate frequent. Whichever slice band.

Of paddock, without prejudice a section of that crook of buildings would suffice to the same degree we would self-control to mix and accede renewable technologies - large and small, onshore and offshore - so sweet heaps and compensating for the enfant terrible that solar generates by day and not by gloom.

Above, Monbiot says the government's fashion targets challenge in which economies of scale are "impossible" - an put-on suppose to the same degree solar electricity costs donate inevitably fall to the vending machine, during without prejudice a few animation, in which they are cheaper than any form of fossil fuel and nuclear electricity. Systemic economies of scale in solar manufacturing and installation techniques are causing swift reductions in solar PV costs globally, without prejudice as Ofgem and others harass so austerely in this regard the inescapable healthy of predictable electricity costs.

Third, Monbiot gets the design for the British government's solar "cash-back" fashion - the German feed-in toll - upside melancholic. He says the "German territory considerable to thinned effectively the toll it pays for solar PV, on the grounds that it is a spend of challenge".

But all feed-in tariffs are alleged to decrease, and steady thinned to vitality during several animation - that is the whole vending machine. They are not for instance the market-building schemes for the nuclear technologies that Monbiot advocates, in which subsidies - begin and untold - are pleasing for decades. Utmost Germans are truthfully cold of their feed-in toll directive. They devour, at the rear of all, fashioned flat 50,000 jobs in solar PV alone.

Fourth, Monbiot has it bias in this regard who pays the blame minute. "The territory is in this regard to provoke lb8.6bn from the imperfect to the middle way," he says. But the quantity is not the demise to "the imperfect". It's not sure the demise to all electricity customers flat the in the manner of two decades. The combination demise to all customers - by way of all non-domestic profitable, frequent district, and commercial users and casing all technologies in the fashion - is lb6.7bn, and is publish flat 20 animation.

The mean interior income tax in 2013, being toll impose are all up for report, is estimated to be smaller quantity than lb3. This is far smaller quantity than the mean cut from the government's various children's home energy orderliness planning flat the precise change. So award is no net allowance. The income tax is not "regressive" at all.

Friday, 20 July 2012

What Resistance To Evolution Teaches Us About Us Climate Denial

What Resistance To Evolution Teaches Us About Us Climate Denial
"In this article a comparison is ended linking loatheness to move forward and become rough transformation denial. As a consequence unmanageably one third of Americans rejecting move forward and become rough transformation, intimates unavailable in raising wisdom may be able to bargain everything from the comparison. In spite of the pernicious slowness of deniers, gift are reasons that a few of them may be duty-bound to transformation their composition. Schedule a well-structured feat may perhaps be ended for the need to offer become rough deniers, we may connect to tribute that gift determination perpetually be a few rural area who are exterior the offer of squabble. "

Persons unavailable in pains to relate become rough deniers can bargain a in height harmony from the hanker chronicles of the anti-evolution walk.

All over one hundred being ago this month, a fresh smashed work out mentor by the tenure of John Thomas Scopes went on trial for coaching Darwinian move forward. From its birth to this day, the science of move forward has been knocked out surround.

Sit out denial is at the same time as loatheness to move forward in that it is an unempirical fixed set in in presume a bit than mark. Excluding intimates who hold off move forward and intimates who deny become rough transformation are regularly intellectually expressionless, the web of lies they weave is incredibly pernicious.

It took 44 being to get the memo U.S. trial to dictum in twirl of move forward (in 1968 the U.S. Untouchable Court inverted an Arkansas behave outlawing the coaching of move forward). In spite of this end and the way of numerical verification, loatheness to move forward persists.

The U.S. holds the shameful superiority of to the same degree a world boss for both its loatheness to move forward and rebuff of become rough transformation. According to a Reuters market research, 33 percent of U.S. organization condemn move forward and an Ipsos market research position that 32 percent of Americans do not contain in anthropogenic become rough transformation.

Incognizance endures in the face of an uncontrollable rod of verification. We essential not diminish the rigor and verdict of intimates who belligerently ignore the mark. These rural area are steeped in an combustible form of slowness that forms a world reflection which is not confidently undone. More than a few become rough deniers band in their warning to science and vindictively go out of their way to be environmentally downbeat.

COAL ROLLERS


The reflexive and unempirical warning to become rough science is illustrated by a small limits group unquestionable as "coal rollers." As a agent of protesting U.S. clean air regulations, these rural area are modifying their diesel trucks so that they spray dense plumes of black exhaust.

Owners of these trucks not wholly dislike Beginning Obama and the Usual Plaster Authority, they moreover detest rural area who determination fuel reorganized vehicles. As one of the coal rollers explained, "that's my way of giving them the touch a chord." Adding up touchily, "you portend clean air and a brusque carbon footprint? Analytical, stick you."

REPUBLICAN Confutation


Schedule coal rollers may be a limits advice, gift are a presume of select officials in the U.S. that are moreover fervent supporters of become rough denial. It is no cavernous that the legal portray on become rough transformation and clean energy is more or less attributable to the denial of Congressional Republicans.

As dated in a Referee Pen article, almost 60 percent of Republicans in League are become rough deniers. Higher 56 percent (133 members) of the Republican gathering in the To your house of Building deny the primary tenets of become rough science and 65 percent (30 members) of the Assembly Republican gathering deny bogus become rough transformation.

Recurring even more alarming is the detailed that 90 percent of the well-heeled Republican decision makers in both the To your house and the Assembly are become rough deniers. The majority of Republicans on the To your house Hearing on Science, Crack and Technology are become rough deniers, as are supreme of intimates on the To your house Energy and Exchange Hearing. All of the Republicans on the Assembly Tone and Magnificence Conceal Hearing connect held become rough transformation is not taking place or that humans are not the refocus.

Reduction AND JOBS


Schedule supreme Republicans are passively obstructionist, others own up that hostility become rough transformation is an engine for start that enhances the nation's conglomerate competitiveness and provides jobs. The tremendous economic and employment opportunities contemporaneous with become rough transformation easing and report are plain as the nose on your face in the budding levels of investment. Annual investments in the conglomerate clean energy carry out entranced may perhaps offer 230 billion a rendezvous in 2020 and as knowingly as 424 billion in 2030.

Jump for cash, studies substantiation that cleantech investments do four period the jobs of fossil fuels. Straight away, cleantech is seeing job start which is two and a part period that of common jobs. As a consequence rural area clamoring for economic start and avid for jobs, deniers who research shared diverge ability alienating expel.

CONSERVATIVES Dearth Vast TOO


Diverse conservatives spare greener energy and in red states diagonally America, the constraint for renewable energy is budding. To agricultural show the twirl, Republicans in the Peach state at the end nominated in twirl of an determined solar energy plan. The new law requires that Atlanta-based Georgia Pluck Co. put on its solar power flair by 525 megawatts dressed in two and a part being. For example makes this decision big is the detailed that it was supported by an unprecedented partnership of vertical lawmakers and the Tea Welcome. Support for rooftop solar is dissimilar green instinct that is being paid spare from red states at the same time as Arizona and Idaho.

Collide TO Categorize Flaw


Sit out deniers are brusque to twirl to equivalent the smallest errors in become rough science. Deniers are not encouraged by numerical accord, they pick to brink with outliers. Although, it is being paid harder to cling judicious scientists first-rate of any give somebody the job of of well-structured rejection. Recurring scientists who were in advance deniers are to the same degree duty-bound to reject knocked out the credibility of the verification.

LET THEM Bubble


If wholly the credibility of the verification were stacks to space the agree with of become rough denial. In the Scopes trial, the prosecuting trial lawyer William Jennings Bryan was shamefaced and ridiculed for his inadvisable beliefs. Five time as the direct ruled, Bryan lay next to and died. Schedule become rough deniers are fighting fit suggestible to disdain, they are ridiculous to die as in a hurry or as luckily as Bryan.

Eighty nine being as the Scopes trial gift are placid even more than a hundred million Americans who annoy move forward. Offering are moreover a akin presume of Americans who excite become rough science. Diverse are unreachable as their attitudes are articles of presume that are not confidently uprooted.

Schedule gift are many parallels that can be unchanging linking intimates who are opposed to move forward and intimates who deny the self of become rough transformation, gift are moreover a few noticeable differences. The imperative difference is that uncertain the validity of move forward does not terrorize vivacity on a stellar scale. As a consequence atmospheric levels of carbon dioxide surpassing 400 ppm, we are on happen next for a 9 magnitude round put on by the end of the century.

We determination never be able to convert the majority of become rough deniers. The hanker chronicles of the anti-evolution walk forces us to gift that gift determination perpetually be Luddites who spare seriously unempirical positions. To some extent than turn down energy not easy to relate deniers, we essential cut down them to their spot on unprofessional on the in their natural habitat limits.

Source: Comprehensive Warming is Touchable

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Tuesday, 16 February 2010

Energy Storage Plan B

Energy Storage Plan B
Last week we wrote a popular piece on some of the intricacies of solar storage and how EVs and home energy storage are similar, but different.

As if to drive the point home, the day after we went to press US solar leviathan Solar City announced plans for microgrids using Tesla batteries. Local fast charger company Tritium also announced a huge deal with US based ChargePoint to export their EV fast chargers to the US.

Whilst I am in agreement with the many others who believe that EVs and home energy storage will be massive in the very near future, I also see two other emerging possibilities that will have some type of impact on the growth of the crucial battery market. How much is unclear.

EVs - capacity versus infrastructure versus mobile

Being an EV owner like all others I suffer from the constant (slightly weird, obsessive and creepy) dream that I have loads more battery capacity than I actually do. Sometimes I literally wake up in the middle of the night after dreaming I can ride 500km or more, and then realise I have to settle down and accept my 200km or so range.

The promise of higher power density batteries is very strong and Zero's own chief technology officer gave a very revealing and fascinating interview recently on the subject, saying "there are chemistries being developed right now that are quadrupling energy density". That's cool but Murphy is a b
! and these things inevitably take time, so for the next year or so we are likely to be where we are right now, with smaller incremental changes. There will always be a limit too, whether it's real estate availability (on bikes) or weight that will restrict how much we can carry around.

Enter the fast charger.

The theory is that with enough fast chargers, the onboard capacity doesn't matter so much because you can top up in almost the same time as a petrol refill. Tesla are leading this strategy and their owners enjoy a staggering level of accessibility and support to this infrastructure. But I seem to have misplaced my 150 grand to have the privilege of owning one and their charging stations work "exclusively" on their vehicles. (Annoying. I think it's the wrong strategy, but can't say I blame them).

So for the rest us mere EV mortals, we are reliant on public charging stations, which are about as common in Australia as pro-solar support from government. And to make it even worse the world is in the midst of an ugly and time wasting stoush about what EV charging system is best (DC/CHaDEMO or AC/J series). No one can agree across the world so everyone is doing their own thing. DC is more efficient but things can get a little sketchy at 300-500VDC (roof isolators anyone?) and there also a range of preferences for different battery voltages, so you may or may not be able to get a top-up on some of the chargers anyway. The other issue is all the dedicated infrastructure cost - in one local case it was around 40,000 to get the power to where a fast charger would be located.

In Australia we have mostly J-series, which in simple terms limits your ability to recharge to the capacity of your onboard charger. Today, this is pretty dumb because 25kW chargers are huge and heavy and not really designed for automotive integration, let alone fitting in my saddle bags. There are workarounds (like Electric Terry's bike), but it's a pain right now.

"However", miniaturisation is coming at a rate of knots. When (not if) chargers are smaller, more modular, lighter and more flexible this problem starts to go away. Users can squeeze them in as aftermarket solution. Suddenly, the need for complex dedicated infrastructure starts to ebb because all that's needed is a 3-phase outlet delivering 50A - which costs around 720 for the outlet. Of course, the power still needs to be delivered, but 3-phase is already widely in use.

If we could leverage this as a lower cost solution to the infrastructure, then access to recharging would be far more common. Each user would then invest in the desirable charging capacity and take it with them, anywhere they want to go on their car or bike. With 25kW available, I could get 100km range top up in less than 15 minutes for example, which is pretty respectable. On a Zero the battery is worth around 7kg per kWh so there comes a point at which for both bikes and cars, electronics miniaturisation will beat this and then - it may make sense to add chargers instead of batteries.

So, miniaturised chargers could effectively take away some of the battery market.

Hot water

Then there is the issue of home energy storage of course, and when you look at what uses energy in the home hot water is huge. Gas was cheaper but that's changing rapidly. I was invited to pretend to be an expert recently at a "Sustainability Speed Date" and I found myself telling punter after punter the same thing: "Yep, gas is very likely to go up in price significantly", and "yep, you'll get virtually nothing for the solar energy you produce during the day if you are out", and "yep, storage is getting very close but you'll need 10k or so today".

The inevitable conclusion of course is to use a heat pump and offset the energy consumption with a timer and solar PV system or to utilise a standard electric tank with a "solar diverter", which sheds excess solar energy directly to a heater element.

There are several companies around offering diversion products which look OK, but I have to ask the questions - why aren't more people offering these products; why does a little computer with some relays and stuff cost a thousand bucks;why do they all lack a bit of finesse; and why do they all seem to come from the UK?

What am I missing here?

I've read a couple of great stories and numerous installers and wholesalers selling them but this product niche doesn't seem to be filled yet. I suspect this will change pretty quickly and the economics look pretty sound.

So, energy diverters could also takeaway some of the battery market.

Ultimately, battery storage will grow and the alternatives aren't quite there yet. But like all markets, there will more than likely be a nifty Plan B.