Apple explained in December that older batteries in some iPhone models, including the iPhone 6, 6S, and 7, can no longer meet
peak power needs when they're old or used.
Solar advocates were popping corks when a New Year's Eve ruling by an administrative law judge in Minnesota said that distributed solar arrays were a more cost - effective resource than natural gas to meet Xcel Energy's
peak power needs.
Ultimately a plug on a hydrogen FCV could allow the vehicle to sell back hydrogen produced electricity for
peak power needs or provide valuable voltage regulation services through the battery to further benefit the California electric grid.
There is precedent here: South Australia's brown coal - powered Playford power plant, the dirtiest in the country, is now used only for meeting
peak power needs.
It will also decrease its energy use by 33 percent and meet 35 percent of it's
peak power needs with renewable energy resources.
For Internet giant Google, this reality has driven efforts such as the installation of a solar array that can provide 30 percent of
the peak power needs of its Mountain View, Calif., headquarters as well as increasing purchases of renewable energy.
Not exact matches
«The reality about gas plants is that they are
peaker, they often sit idle when that
power is not
needed,» and are turned on when there's high demand, said Wynne.
Large price spikes immediately before and after mid-day periods when both utility - scale and distributed solar generation reaches its
peak level suggest a
need for dispatchable generation sources to help cover ramping periods, when the
need for
power from the grid to meet load is rapidly changing.
We also
need a manager that is at the
peak of his
powers.
The system's three - ohm impedance allows it to draw extra
power safely as
needed for up to 640 W
peak power handling.
RMS Watts:
Peak power is impressive, but RMS
power handling tells you the speaker's average
power needs.
The new system is also designed to allow a PHEV to use its battery as an energy storage device, enabling the car to hold electrical energy in the battery while the grid has surplus
power (during off -
peak hours, for example) and contribute its surplus energy back to the grid when the latter
needs more
power to meet
peak demand, Su says.
The payoff, he adds, is that 10 - hour storage eliminates the
need for a fossil fuel
power plant to back up electricity production on cloudy days and at
peak usage hours in the evening.
Then at
peak demand times, the ice or cold water is used to cool air for large office or industrial buildings, meaning they
need much less
power from the grid.
If humans were to one day live under the yellow haze of the moon's skies, exploring its rolling dunes and ragged
peaks or settling by the side of gently stirring hydrocarbon lakes, they would
need energy to
power their lives.
A milliliter's worth of these electrodes could in principle generate a
peak power level of 24.4 microwatts, more than the 10 microwatts typically
needed by pacemakers, the researchers added.
The researchers are seeking ways to create longer storage times and reduce the
peak power of the laser beam
needed for retaining and reading out the information, a process that will take years before a commercial version of the technology is available.
Another of Lomborgs persistent conceptual confusions relates to his proposition that grid - connected wind
power needs to be sized to meet the
peak demand.
It would require giant storage capabilities, and some of the
peak power units would be used rarely, in the few times when
peak power is
needed.
To improve the ability to generate maximum force, the athlete does
need to engage in both maximum effort lifting (to improve absolute
power peak and motor unit synchronization) and dynamic effort lifting (to improve motor unit synchronization and speed of contraction), the former of which includes maximal or near maximal stimulus, the latter of which includes lower weight (~ 50 - 60 % of maximum) moved at maximum velocity.
They charge more quickly and deliver energy in bursts, making them a better fit with devices that
need instant
peak power delivery, such as electric turbochargers,
power steering and active roll - control systems.
You won't
need to shift as early to stay at
peak power, keeping the mechanical advantage for more revs.
Unlike internal combustion engines that
need oxygen to produce
power (something that's pretty rare at the high altitude of the Pikes
Peak course), electric motors don't have to breathe and will make the same
power at any height.
There's now so much low - end
power that there's now no real
need to tap the 2,300 rpm that lie between the torque summit and the performance
peak.
Merging onto the highway, the Pathfinder definitely feels brisk as it shuttles
power to front wheels with a good amount of snarl, though
peak torque sits at 4,800 rpm, so drivers
need to be generous with the gas to get the most out of it; around town, the
power is more than adequate.
But with an automatic shift, there is no problem with cruising in 7th in low revs at almost
peak torque and then downshift immediately with the flick of a paddle (or automatically) when more
power is
needed.
Admittedly, as the
peak outputs are higher up in the rev range, you do
need to work the engine a bit in order to extract the most from it, but the smoothness of the engine and linearity of its
power delivery means this 3.6 - liter powerplant never feels stressed when you do so — plus, as we'll go into shortly, the transmission does do a good job at keeping the engine in the optimum
power band.
Peak power of 789bhp arrives at 7250rpm, and you do need to rev this beast to get the best from it; peak torque measuring 590 lb ft is set between 5500rpm and 6700
Peak power of 789bhp arrives at 7250rpm, and you do
need to rev this beast to get the best from it;
peak torque measuring 590 lb ft is set between 5500rpm and 6700
peak torque measuring 590 lb ft is set between 5500rpm and 6700rpm.
When I
needed a boost for passing, the transmission downshifted quickly enough, letting me tap into
peak power.
So the transmit amplifier sucks the
power needed for peaks... it has a very high PAPR (Peak to Average Power Ra
power needed for
peaks... it has a very high PAPR (
Peak to Average
Power Ra
Power Ratio).
To reach our 2025 goal, we'll
need to more rapidly slow the growth of
power sector greenhouse gas emissions so they
peak within 10 to 15 years, and decline thereafter.
[Comment 25] To reach our 2025 goal, we'll
need to more rapidly slow the growth of
power sector greenhouse gas emissions so they
peak within 10 to 15 years, and decline thereafter.
Energy Efficiency / Demand Response / Use Curtailment will be another piece of the puzzle... simply put we
need to consume less
power, especially curtailing use during
peak demand.
sunny summer days when air conditioning usage
peaks — which means that we don't
need to have as many big
power plants to meet that
peak demand.
(note there is some energy demand management that is is / has been already used to reduce the
need for
peak power supply; I don't know offhand how much there is and what it would look like if this were simply reshifted to reduce the
need for backup
power supply, which would be like
peaking and load - following plants now.
So we still have quite a ways to go, particularly when you're trying to get from 20 percent of the energy sources up to the eventual 100 percent we
need, where then you run into the big challenge of intermittency [dips and
peaks in
power as wind and solar sources vary] and the cost of adding storage that would deal with that.
Nader said, «We do not
need nuclear
power... We have a far greater amount of fossil fuels in this country than we're owning up to... the tar sands... oil out of shale... methane in coal beds...» Sierra Club consultant Amory Lovins said, «Coal can fill the real gaps in our fuel economy with only a temporary and modest (less than twofold at
peak) expansion of mining.»
In the two years since the nuclear moratorium, the nation has urgently
needed new baseload
power plants to shoulder the country's annual
peak load of 80 GW.
And hot weather can make water supplies too warm for cooling, forcing
power plants to reduce their electricity production when it's
needed most (hot days are also
peak electricity usage days).
Apart from the obvious and major disadvantage of pollution, diesel
powered generators, that will only be
needed a small percentage of the time, will be ideal for the
needed rare
peaking power in exceptionally high demand times in the short - to medium - term.
There will be a strong
need for
peaking power to fill the gaps when the renewables are not generating sufficiently to fill the demand.
Lastly, in a grid with 100 % renewable
power production, the generation capacity would
need to be ten times larger than the
peak load, and excess electricity would surpass the EU annual electricity consumption.
We will have to continue the arguments about how to meet our
need for
power in the face of
peak oil and global warming.
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.
Zero - carbon alternatives to the UK's predominantly gas - fired UK heating infrastructure would, therefore,
need to be able to meet
peak demand some five or six times higher than
peak power demand.
«Solar not only meets this
peak need at a lower per kilowatt - hour cost, but also without the harmful emissions from running a
power plant on standby (or fracking its fuel out of the ground),» he writes.
It allows renewable sources such as wind and solar
power to operate at full capacity during
peak generation periods by storing excess energy until it is
needed to meet later demand.
Add to that the Gameboy graphics that give you ridiculous medals for fuel - efficient driving and an «Eco» button that smooths out the
peaks and troughs of
power input to boost efficiency and frugal drivers have all the tools they
need to save money.
We won't
need new
power plants, since we have enough off -
peak electricity to recharge as many retrofits as we can build.
It has now been reported that the cost of renewable energy plus battery storage is now comparable to, or actually cheaper than, the cost of the previously most economical form of the «
peaking»
power needed to compensate for sudden changes in electric grid demand or generation — natural gas.