Renewables Overtake Coal As World's Largest Source of Power Capacity (ft.com)
The world's largest source of power capacity is now renewables, as roughly half a million solar panels were installed every single day last year. In addition, two wind turbines were erected every hour in countries such as China, according to the International Energy Agency. Financial Times reports (Editor's note: may be paywalled; alternate source): Although coal and other fossil fuels remain the largest source of electricity generation, many conventional power utilities and energy groups have been confounded by the speed at which renewables have grown and the rapid drop in costs for the technologies. Average global generation costs for new onshore wind farms fell by an estimated 30 percent between 2010 and 2015 while those for big solar panel plants fell by an even steeper two-thirds, an IEA report published on Tuesday showed. The Paris-based agency thinks costs are likely to fall even further over the next five years, by 15 percent on average for wind and by a quarter for solar power. It said an unprecedented 153 gigawatts of green electricity was installed last year, mostly wind and solar projects, which has more than the total power capacity in Canada. It was also more than the amount of conventional fossil fuel or nuclear power added in 2015, leading renewables to surpass coal's cumulative share of global power capacity -- though not electricity generation. A power plant's capacity is the maximum amount of electricity it can potentially produce. The amount of energy a plant actually generates varies according to how long it produces power over a period of time. Coal power plants supplied close to 39 percent of the world's power in 2015, while renewables, including old hydropower dams, accounted for 23 percent, IEA data show. But the agency expects renewables' share of power generation to rise to 28 percent by 2021, when it predicts they will supply the equivalent of all the electricity generated today in the U.S. and E.U. combined.
So, is it time to go back to all the nay sayers who have over the past 10 years asserted this point was impossible, and say "I told you so"? Or will they just continue to assert that the numbers are all lies, and only coal can make electricity?
Learn to love Alaska
... they overtake coal for amount generated per unit time.
Renewables may have higher total peak, but coal plants have level output and can run 24/7, while sun is only about a third of the day and wind varies with the weather - at a power output proportional to the CUBE of the windspeed.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
That this still needs to be pointed out shows just how dangerous and naive the green left still is.
Dog is my co-pilot.
Yes, this is slashdot.
The article says more new renewables were installed last year than new coal.
This is a great outcome for renewables. Renewables are still mostly more costly than coal, but renewable costs are still reducing each year. I can't wait to see what happens when renewable costs are actually cheaper than coal.
Of course, in many situations renewables are overall cheaper than coal. For example, centralised coal plants require distribution networks which are expensive. For people not attached to a grid, solar pv plus local storage may be cheaper than coal today.
The big thing I've become interested in recently is off-river pumped hydro storage for overnight and peak loads. Because it's not tied to a river it can use any large local height differences to provide intermittent storage. And of course most dammable rivers are already dammed, but there are lots of hills and cliffs that could be used to provide off river pumped hydro.
Anything is possible when governments sabotage the competition and pour an unlimited amount of money into the "preferred" solution. Unfortunately, this has been mostly graft in every country.
but coal plants have level output and can run 24/7,
Are you actually asserting that demand is level 24 hours a day?
at a power output proportional to the CUBE of the windspeed.
is this relevant somehow?
Do we know how much of the produced renewable energy is from hydroelectric stations (water dams)? I would suspect that it's still more than 70%.
The article mentions mostly wind and solar power, perhaps they're the main growth factory.
By the way, do they count burning wood as renewable energy? Renewable and green should not be confused.
when you can't externalize the environmental costs.
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Its not saying renewables produce more power but that more renewable capacity was added this year than non-renewable capacity. But the bulk of capacity remains non-renewable.
It said right here:
""
But the agency expects renewablesâ(TM) share of power generation to rise to 28 per cent by 2021, when it predicts they will supply the equivalent of all the electricity generated today in the US and EU combined.
""
So by 2021, they hope it will be up to 28 percent of total capacity. Thus... no, renewables are not the majority of power generation and the title is wrong.
I've decided to stop wasting my time responding to AC trolls/sockpuppets... so if you want a response from me... login.
Renewables Overtake Coal As World's Largest Source of Power Capacity
Although coal and other fossil fuels remain the largest source of electricity generation
So, renewables are the largest source of power... except for the fact that coal and fossil fuels are the largest source of electricity generation? WTH? Is there a difference between power capacity and electricity generation?
Half a million panels installed per day infers half a million panels produced per day - where exactly is all this production happening?
DISPATCHABLE. Wind and solar are not dispatchable.
'Capacity Factor' is a way to measure power station facilities in a way that ignores negative externalities. For power sources that have a large impact on the environment it is a favourable measure to use. The higher the 'Capacity Factor', the greater the environmental damage.
My ism, it's full of beliefs.
The U.S. were once pioneers of wind power(4) in size not only in space but in wind turbines (you might think that the danes were the only pioneers?).
You need to take a look at the good old west. Water pumps powered by wind turbines. Offgrid farms getting their first electricity from wind turbines.
Wind power plants are indeed smaller production unit than a big coal or even a nuclear power plant, that needed to be manufactured as well as their parts (also done in the US). While manufacturing solar panels got outsourced like chip manufacturing.
Meaning! you can employ more people with wind power than with coal power, coal power and nuclear power destroys much more jobs that it generates!
It is different with wind turbines, they need good old american craftsmanship to build a solid turbine that sustains harsh conditions.
Some american wind power history:
1941
American visionary Palmer Putnam built a 1.25 Megawatt! turbine(1) in 1941.
Indeed after some time it threw a blade. But before that it produced more energy and ran longer than the german multi million dollar 1980s disaster called Growian.
Whiners fall down and never try again. Pioneers stand up shake the dust off, don't mind their bruises and climb that horse again, and again till they succeed.
1982-1988 ..
MOD-2 a 2.5 Megawatt turbine with 91m (~275 ft.) diameter rotor. (2) and so on
Pioneers can and will fail, but as Kennedy said, that you don't go to the moon because its easy, but because its hard! And generating power from wind is hard but in the recent 30 years we got quite a good understanding how to do it and how to size up the turbines!
Can you feel the changing wind right now? Do you got faith of the heart or fraid of the trump? (3)
This is what made america great, having faith of the heart and this is what can make america great again.
(1) https://en.wikipedia.org/wiki/...
(2) https://en.wikipedia.org/wiki/...
(3) https://www.youtube.com/watch?...
(4) https://www.youtube.com/watch?...
I saw the title of this submission, and it immediately set off my bullshit detector.
The thing you need to recognise is just how much energy we get from fossil fuels. It's insane. We use 2% of our natural gas production to produce ammonia, for example, but to do the same thing using renewables would take 30% of the world's entire renewable and nuclear power capacity. Then there's steel production. Then there's concrete production.
The only way this submission is accurate is if you define your terms in such a way that you are specifically trying to get a certain result.
So this is why China has so few birds.
Greg Raven
As long as there's any left, I'll take mine first.
How many carbon based power plants were taken off-line and replaced by renewable generation capacity last year?
After much research, I haven't found a single instance of that happening - ever.
Have renewables caused a moratorium on all new carbon based power plants? I don't think so. Asia (as of last year) was opening more than one coal power plant PER DAY:
http://climatechangedispatch.c...
Renewables have two mathematically inescapable problems:
1. Renewable's land requirements per kWh are far too high.
2. Renewable's storage requirements to meet base load demand simply do not exist - presumably because storage costs are also very high.
I ran the numbers on a very small 2kW self-installed system - it would take me over 10 years in a best case scenario to recoup the costs at current utility rates.
Until renewables become far cheaper, generate more kWh per square-foot, and solve the storage problem - they will never reduce or replace carbon based generation.
Cheap natural gas, made possible by tracking.
The title is correct, but then we have to define "renewables". It includes solar, wind, geothermal, and hydroelectric.
With that in mind, know that wind and solar, the big newer, flashier energy sources in the media, are not the major sources of renewable energy. Hydroelectric (falling water) accounts for over 70% of renewable energy. Wind is at 15%. Solar is at 4%.
Percentage-wise, solar and wind have grown very quickly, but in the grand scheme of total energy production, wind and solar are still small potatoes.
Disclaimer: I'm not writing this post as a nay-sayer. I actually work in sustainability. I WANT more solar and wind power. I'm just trying to make sure that people don't accept hype-ish headlines as implying certain things. Within sustainability, we always have to manage the expectations of the hype. Everyone thinks we can "just put up some solar panels" and make free electricity for EV charging stations when FREE is never reality.
Good lord, editors! The summary contradicts the title. Please at least look at the post before approving, or else find someone else to edit.
Jeez, doesn't anybody pay attention to the details any more?!
I am glad there has been an increase in capacity, which is really potential capacity. However, I will be curious when they start basing the stats on delivered capacity. Numerous projects have not been producing their potential capacity. Several of the large solar have been at 20 - 30 percent of potential. Add in the push to start shutting down wind along migratory bird paths, we will see a reduction in delivered capacity.
Which I admit are significant. I love the idea of renewable energy. I have a Tesla Model 3 reserved, and I love the idea of generating my own electricity in a carbon free manner.
Politically, generating your own electricity without pushing external costs on others squares nicely with my Libertarian views.
Unfortunately, the finances matter. In the 3rd world, they matter even more.
Right now the external costs of carbon based generation are being borne by pretty much everyone. It's unfair, but that's the way it is. I don't have faith that government can equitably fix the external cost problem - so renewables have yet another hill to climb.
I'm an optimist here though - I think the engineers will get the cost of renewables down and fix the storage problem - I do not have the same optimism that governments can fix the carbon external cost problem - so it's up to the engineers to make renewables so cost efficient that the external costs of carbon become almost irrelevant. If renewables are productive enough, cheap enough, and reliable enough - they will win.
I'm hoping my kids see that in their lifetimes.
Capacity in solar and wind energy production is misleading since neither can produce as much power per unit of capacity as fossil fuel plants can. The US EIA, https://www.eia.gov/electricit... ,lists capacity factors for non-fossil fuel energy production. It also lists capacity factors for coal and fossil fuel energy production, https://www.eia.gov/electricit... .
The tables show that each unit of coal and fossil fuel energy capacity produces approximately twice as much energy over a year as the same amount of capacity of solar and wind. Until wind and solar have twice the capacity of coal, they have not overtaken coal in energy production. Even capacity factors overstate solar and wind energy production since neither wind nor solar can produce continuously power over a 24 hour day as coal and fossil fuel plants can.
There are solar panels which produce power (70%?) that were made in the 1970s. So you may pay upfront costs of 10 years worth of power but you get DECADES of power after that point. Then it's basically free. Just being simplistic that is a good deal if you have the money and it's a great loan situation too. We all know that utility rates will go up over the next 10 years.
Storage is the big problem and expense we need to be investing in solutions for. So maybe then we end up with 30 years upfront costs... then it becomes a bigger loan situation. Obviously this is impossible because we never had to factor in our energy costs into trying to afford the biggest most bloated house we can afford.
Democracy Now! - uncensored, anti-establishment news
Optima yellow top batteries have lasted me eight years so far with heavy discharge cycles and with ZERO maintenance. They are AGM lead acid. They are also only about $40 higher than a regular car battery. Not what I would call "incredibly expensive" especially, for my case, a doubling of life. If I got 3 years out of a regular Interstate deep cycle battery, I was doing good. Regular deep cycle battery don't really like deep cycling either, they just tolerate it more than a standard auto battery. Try again, hater.
So, is it time to go back to all the nay sayers who have over the past 10 years asserted this point was impossible, and say "I told you so"? Or will they just continue to assert that the numbers are all lies, and only coal can make electricity?
OTEC!
Maybe when renewables actually PRODUCE as much power as coal, that might be a better day to beat your chest.
OTEC can do Base-Load Power!
Never say never.
So many issues with your last paragraph. "...it's cost prohibitive to build NG..." Really? It's affordable to build a coal fired plant, but unaffordable to build a natural gas plant? I realize that coal is the cheapest fuel input, but only a fool would claim that natural gas is "cost prohibitive". They are both thermal electrical generators, the basic technology is the same. And lots of thermal electrical generators already use natural gas.
"They're now scrambling to build thousands of KM of power lines." No, not really. Those lines are already built. How do you think that "small towns and cities" are powered now? Some do have small generating facilities nearby, but most bulk import power from major generating facilities like Genesee.
It is true that there is a big power line building program under way, one that is controversial to the landowners affected. However this is mostly about future plans for industrial development northeast of Edmonton. The rest of the justification for this is that renewables are causing the sources and destinations for electricity to separate, more than in the past. This requires more electrical infrastructure to take the electricity to market. For instance the best wind generating areas in Alberta are in the extreme southwest, in the Foothills area. The closest major market for that power is Calgary. Lines have to be constructed to connect the two. Lines probably already exist but they won't have enough capacity for the wind generating potential found there.
Regarding "solar or wind is also prohibitive", um well. While true in the past, this is increasingly untrue. Costs are tumbling very quickly, and Sunny Alberta is called that for a reason, you know? It's not just because we have a lot of optimists here.
While I appreciate your colourful description of Grande Cache in the winter, I am a lifelong Albertan. We know what winter is about and we are equipped for it. It's nice to talk about the mental and physical stresses of winter in a "hey, don't you hate shovelling snow" sort of way. However when you link it to the NDP government you reveal a partisan agenda that has nothing to do with renewable energy or Seasonal Affective Disorder.
Here would be the appropriate analogy: "OMG, Russia is so cold in the winter! Wouldn't winter driving in Moscow be so much better if Vladimir Putin wasn't in power?"
See how that doesn't make any sense?
It strikes me that at approximately every 120 degrees around the earth we have a huge desert. The American SW, Australia and northern Africa. Wouldn't it be great if we could put a metric shitton of photovoltaics in those three locations and tie it all together with a HVDC distribution system? Think of all the people we could employ to keep them wiped clean! And the sun would always be shining on one or two of the locations.
It's not that alternatives are so great - they are inferior in every way. It's that coal is far inferior, thermodynamically and thus economically, to natural gas. This is what has all but killed coal. Alternatives are worse that nat gas but we still have nat gas so we use its greater efficiency.
Alternatives can NEVER drop-in replace fossil. Instead a change/reduction in lifestyle is always be required to switch because the thermodynamics requires getting less for the same economic and energy inputs.
Everything is renewable! Coal gets replaced, more coal gets created over time. Same with oil. Even same with Nuclear.
Wind energy is often said to be renewable; however the windmills take energy out of the wind causing it to slow down thus moving heat and cold and particulates slower - this has more than zero effect on the environment.
False propaganda to push an agenda
Take a look at the second graph to get a good dose of reality over ideology:
http://www.theenergycollective...
All it took was a very quick google image search.
If you spend anywhere near the amount of time you write about this stuff on actually learning about it we wouldn't need to have these discussions where I try hard to not write as if I am looking down on an idiot.
You may not be stupid but you appear to pretend to be very frequently - the above line is missing an "only", which should be obvious but you are bound to jump on it as if it was not.
Consider that wind and solar are currently ONLY occupying the niche above base load almost everywhere other than in people's dreams.
Your charging at windmills is pointless - the "green" stuff you hate so much is just another collection of useful tools to add to the energy mix.