That depends on the «capacity credit» of wind — how much of
the wind plant capacity can be relied on statistically to meet peak demand.
Not exact matches
The country's nuclear power
plants have been shuttered with only part of the
capacity replaced by
wind and solar.
More likely, there are still nuclear
plants running, and there may even be some natural gas
plants lingering in the system — not running at full
capacity, but they have the ability to power up quickly when there's not a lot of sun or
wind.
If and when
wind and solar
capacity double their outputs from current levels, base - load
plants, which have to run constantly to ensure grid stability, will start to suffer financially as well and risk becoming uneconomical.
This is expected to boost China's renewable energy
capacity because financing from polluters can support more
wind farms, hydroelectric dams and solar power
plants.
But every time I take a closer look at the balance sheet, it's a bloody challenge... For example, the value of operating
wind farm
plant & equipment is recorded at EUR 415 million (USD 549 million), but deal multiples clearly indicate 351 MW of operating
wind farm
capacity's worth significantly more!?
And yes central power will be another piece (nuclear is great for baseload power... it operates at 90 %
capacity factors even if the price of building a new
plant has risen by 130 % since 2000) Centralized
wind and solar will mature but then there's the transmission issue...
American nuclear power reactors operated that year around the clock at about 90 percent
capacity, whereas coal - fired
plants operated at about 73 percent, hydroelectric
plants at 29 percent, natural gas from 16 to 38 percent,
wind at 27 percent, solar at 19 percent, and geothermal at 75 percent.»
By the time that new nuclear power
plants can even begin to generate any «carbon free» electricity, we can build and deploy hundreds of gigawatts of
wind and solar generating
capacity — and that's with today's mainstream, already commercialized technology, let alone the innovations like thin - film solar that are just beginning to enter the market.
This is a valuable long - view chart from the Energy Information Administration showing how natural gas
plants and
wind turbines have been the dominant sources of new electricity generation
capacity in the United States in recent years.
Kansas is rated as the state with the 3rd best
wind power potential in the U.S. Kansas currently has 364 megawatts (MW) of utility - connected power, equivalent to about 1/2 of the generating
capacity of one of the proposed coal - fired
plants.
When all of these
wind farms are completed, Texas will have 53,000 megawatts of
wind generating
capacity — the equivalent of 53 coal - fired power
plants.
Shadow
capacity backs up
wind turbines with coal, nuclear, and gas - fired
plants.
But because nuclear
plants operate at a 90 % and higher
capacity factor while offshore
wind at 40 %, the electricity generated from the new
wind will be less than Pilgrim's.
Tobin claims that NGS will increase reliability and «secure the grid,» but does not recognize the potential of high
capacity factor concentrated solar thermal projects, like Arizona's Solana concentrated solar
plant, or the innovative potential of batteries,
wind - solar combinations and other means to generate electricity after the sun sets.
Wind generation capacity already is on par with coal - fired power output in Texas, due to a proliferation of wind projects at the same time coal plants are clos
Wind generation
capacity already is on par with coal - fired power output in Texas, due to a proliferation of
wind projects at the same time coal plants are clos
wind projects at the same time coal
plants are closing.
OPIC is rapidly increasing its focus on renewable energy in Africa: Its 2014 agreement to provide financing and insurance to support construction of the310 - megawatt Lake Turkana
wind power
plant in northern Kenya, is the largest renewable power
plant it has committed to date in Africa, and has a projected
capacity of almost triple the total
capacity of renewable energy projects OPIC committed in the prior three years.
Its clean energy portfolio, which accounts for over 18 % of the total equity
capacity at end - 2011, includes hydro - electric, solar,
wind and biomass
plants.
If we could manage to adjust all energy demand to variable solar and
wind resources, there would no need for energy storage, grid extensions, balancing
capacity or overbuilding renewable power
plants.
This much
wind capacity will produce about as much electricity as 30 nuclear
plants, and that will be a bit less than 5 % of the country's electricity.
Kris says:... renewable energy would ideally be used only when it's available... If we could manage to adjust all energy demand to variable solar and
wind resources, there would be no need for grid extensions, balancing
capacity or overbuilding renewable power
plants.
In China, a boom in
wind - power
plants thanks to government subsidies has resulted in a large amount of
wind capacity that is not always properly connected to the grid.
If we could manage to adjust all energy demand to variable solar and
wind resources, there would be no need for grid extensions, balancing
capacity or overbuilding renewable power
plants.
We wouldn't be able to close any current power
plants as were running at close to
capacity and can't count on
wind energy to be readily available, i.e. during peak power demands of low
wind energy seasons.
For a power grid based on 100 % solar and
wind power, with no energy storage and assuming interconnection at the national European level only, the balancing
capacity of fossil fuel power
plants needs to be just as large as peak electricity demand.
This is because the same
capacity nuclear
plant generates three times more power than a
wind turbine.
The average offshore
wind turbine in 2015 was 3.4 MW but grew to 4.7 MW during 2016, with
capacity factors exceeding those of natural gas
plants.
Based on our modelling, the median bid for
wind plus storage is lower than the operating cost of all coal
plants currently in Colorado, while the median solar plus storage bid is lower than 74 % of operating coal
capacity.
Several details remain unknown, but the median bid for
wind plus storage appears to be lower than the operating cost of all coal
plants currently in Colorado, while the median solar plus storage bid could be lower than 74 % of operating coal
capacity.
That's because a working electricity system fueled mostly by
wind turbines requires additional massive costs that a fossil fuel system does not: huge excess
capacity (perhaps 300 - 400 %) to deal with conditions of light
wind; gigantic batteries to store power for conditions of no
wind at all, which can persist for days; extra transmission lines to bring electricity from windier areas to the rest of the country; and finally, an entire array of fossil fuel back - up
plants for those occasions when the
wind doesn't blow for a week and the batteries are dead.
A 310 MW gas power
plant running at 60 %
capacity factor would be roughly equal to 400 MW of solar plus 150 MW of
wind with 25 % and 40 %
capacity factors, respectively.
Tags: California,
capacity, coal, electricity, generating
capacity, natural gas, power
plants, solar, states, wholesale power,
wind
Recharge The
wind industry added a further 54GW of plant to the grid around the world last year, with turbines in more than 90 countries making up an installed generating capacity of 486.8 GW, according to figures from the Global Wind Energy Council's (GWEC) latest Global Wind Rep
wind industry added a further 54GW of
plant to the grid around the world last year, with turbines in more than 90 countries making up an installed generating
capacity of 486.8 GW, according to figures from the Global
Wind Energy Council's (GWEC) latest Global Wind Rep
Wind Energy Council's (GWEC) latest Global
Wind Rep
Wind Report.
The Guardian An upsurge in new
wind, solar and hydro
plants and
capacity saw renewable energy smash global records last year, according to a report on new supply.
Reve With a rapid growth in the renewable energy projects over the past few years, the total installed
capacity of the
wind power
plants across the world has witnessed a manifold increase.
The significance of these announcements are that these are some of the first announcements of power
plant - scale solar projects in China, where there has been at the end of 2007 an installed
capacity of only 0.08 GW of solar compared to nearly 6 GW of
wind.
Adding
wind and solar photovoltaic
capacity to the grid may require augmenting the amount of peak - load
plants, which can be done relatively cheaply by adding gas turbines, which can be fueled by sustainably - produced biofuels or natural gas.
Either you didn't understand the question or you are really believing that 48.8 GW of conventional power
plant capacity was on standby, ready to jump in in case the
wind and solar output suddenly would drop to 0 GW.
Wind and solar require expensive renewable energy
plant, far flung networks of lossy transmission
capacity, and equivalent levels of fossil fuel backup generation (usually operating very inefficiently).
Do you think 40 + GW of coal power
plant capacity sits around idling when solar and
wind do their thing?
That would bring total closures of coal and gas
plants over the coming four years to 49GW (around a third of total thermal
capacity)-- which just happens to match the amount of
wind and solar
capacity that UBS anticipates will be added over the same period.
To replace a 1500 MW coal
plant with
wind turbines means you will need way more than 1500 MW of installed
capacity of
wind generation to get an average of 1500 MW of power even if you had a perfect energy storage system.
Alabama Power, a Southern Company subsidiary and operator of all the listed
plants except Lowman, already gets 404 MW of power
capacity from
wind power imported from the plains on existing transmission lines, highlighting the feasibility of
wind power purchases.
[280] Ukrainian State Agency for Energy Efficiency and Conservation forecasts that combined installed
capacity of
wind and solar power
plants in Ukraine could increase by another 600 MW in 2012.
Rural landowners, consumer - owned utilities, school districts, colleges and native tribes are putting installations on the ground ranging from single turbines to
wind plants with hundreds of megawatts of
capacity.
By the first half of 2017, Scotland had 9,309 MW installed
capacity of renewable electricity - mainly comprised of 6,767 MW onshore
wind, 187MW offshore
wind, 1,632 MW hydro, 328MW solar and 196MW
plant biomass.
Building that four megawatts at a time — the
capacity of the largest
wind turbines currently made — would mean building 125,000 of these giant windmills across the country, along with hundreds of gigawatts of additional conventional
plants to serve as a backup reserve for the
wind farms.
Solar and
wind each provide 20 % of total electricity supply; nuclear
capacity is tripled, and the technology for coal
plant carbon capture and sequestration (CCS) is assumed to be available without constraint.
In Texas, the state government is coordinating a vast expansion of
wind power that could yield 23,000 megawatts of new generating
capacity, an amount equal to 23 coal - fired power
plants.
Although variable renewable energy sources were critical to European society for some 500 years before fossil fuels took over, there were no chemical batteries, no electric transmission lines, and no balancing
capacity of fossil fuel power
plants to deal with the variable energy output of
wind and water power.