The nugget of truth here is that we do need reserve capacity to be available
in times of peak demand, especially during extreme weather events that lead to greatly increased need for heating or cooling.
Not exact matches
Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.
Lithium - ion batteries become less capable
of supplying
peak current
demands when they are
in cold conditions, have a low battery charge, or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.
At that
time of the season,
demand is lower than
in the summer, and ending the cuts
in March — ahead
of peak demand — could exacerbate the glut that OPEC and friends have been fighting this year.
On the other hand any restrictions which are introduced will result
in the relief being less flexible, more complex, and result
in those providing short term accommodation at
times of peak demand (e.g. during the Edinburgh Festival, Wimbledon etc) being more likely to have to declare taxable income.
He maintains that some combination
of new generators and new transmission lines could be ready
in time to cope with summer 2016, the first
peak demand period that power - hungry New York City and Long Island would face without both reactors.
Students whose circadian rhythms were out
of sync with their class schedules — say, night owls taking early morning courses — received lower grades due to «social jet lag,» a condition
in which
peak alertness
times are at odds with work, school or other
demands.
They found that «
peak alert
times» were often at odds with the
demands of work and school, showing up
in poor grades.
Riggio however is
of the opinion that
demand for e-book reader will come down sharply by the
time its 2012 before reaching a
peak in 2011.
So despite the price volatility, pelt volumes have continued to grow (with no signs
of abatement
in consumer
demand)-- I remain convinced Saga's ultimately a cyclical growth stock, and
in time we'll see a fresh
peak in sales & turnover again (as
in 2013 & 2006).
Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, [when they] have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.
I think, to spur its development, we need electricity pricing that encourages investment
in load - shifting, a guaranteed return for delivering a megawatt - hour at
peak demand for more than it costs at the
time of peak excess supply.
Much, much energy can be generated NOW, with fairly simple technology, from sunlight, especially for
peaking purposes and also for large volumes
of electricity
demand that correspond,
in timing, to the daytime.
In explaining the value
of BrightSource Energy's concentrating solar power (CSP) plants with thermal energy storage (TES) capability, the company's Vice President for Government Affairs and Communications Joe Desmond described a 2006 California «heat storm» during which «the California ISO reached its all -
time maximum
demand» and had «about 3,000 megawatts
of wind available,» but «the amount
of wind delivering electricity into the system when it hit its
peak demand was 1 percent.»
On Sunday,
peak electricity
demand was 9,124 MW, about 13 % less than the all
time peak of 10,496 MW
in 2009.
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.
Combining more - efficient lights and appliances with a smart grid that uses
time -
of - day pricing,
peak demand sensors, and the many other technologies described
in this chapter shows a huge potential for reducing both overall electricity use and
peak demand.
For instance, if the customer is billed under
Time of Use rates,
in order to understand how much a solar installation will reduce their utility bill, it is essential to understand how much energy they consume during
peak demand times when energy is more expensive, and how those usage patterns intersect with the amount
of energy their solar array is likely to be producing at different
times.
Businesses
in the US are levied so - called
demand charges, based on their monthly use
of power during
peak times that can constitute as much as 50 %
of total electricity bill costs.
As has often been noted on this website, businesses
in the US are levied monthly charges for their electricity based on their use
of grid power during
peak times, known as
demand charges.
In South Australia, for example, a figure of 3 per cent of installed wind capacity is used to represent the contribution to overall generation supply at times of peak demand; 8 per cent is used in Victori
In South Australia, for example, a figure
of 3 per cent
of installed wind capacity is used to represent the contribution to overall generation supply at
times of peak demand; 8 per cent is used
in Victori
in Victoria.
In fact, as Mr Joshi showed, south eastern Australia's wind farms were generating about 710MW at the
time of the
peak electricity
demand for the week
of the recent January heatwave; much
of this was coming from SA's wind farms.
The tussle over prices
in a decentralized electricity market continued last week, as David Roberts deconstructed the arcane world
of demand response,
in which utilities pay customers to cut their power use during
times of peak demand.
Other public utility commissions
in other states are also considering mandating
time of use rate plans as a way
of reducing periods
of peak demand that necessitate capital upgrades to grid infrastructure
In addition, when the rate changes take effect on or before March 1, residential and small commercial customers will have the option to choose from new
Time -
of - Use (TOU),
Peak Demand and
Demand TOU plans as alternatives to their existing rate.
Electricity sales are 25 percent lower than business - as - usual
in 2040 as a result
of savings from energy efficiency measures and standards, as well as
demand response programs that pay participating consumers to curtail their energy use at
times of peak demand.
Dominion has plenty
of power for
times when
demand is low; the challenge is filling
in the
peaks and valleys
of demand above that minimum level.
Nest thermostats are among a growing number
of products capable
of precooling buildings
in advance
of peak electricity
demand, a strategy that will become commonplace once
time - variant pricing pervades.
The CPUC would be required to increase the percentage
of electricity output delivered by clean resources by 5 %
in 2020 and by 6 % «every third year thereafter until December 31, 2029, or until 40 %
of demand during the
peak load
time period is supplied by clean
peak resources,» the bill reads.
The percentages reflect the assessment
of the capacity value
of wind at the
time of peak electric
demand (often late afternoon
in the summertime).
Victoria experienced supply failures
in February 2000 when a heat wave swept across south eastern Australia, causing extremely high
peak demand at a
time when an industrial dispute had reduced available capacity by 20 % and two generating plants were unexpectedly out
of service.
It's my understanding that,
in particular,
peakers must be able to start and stop within a short period
of time to match
peak demand.
In South Australia, concerns over high levels of renewables causing grid instability at times of summer peak demand, combined with a couple of large - scale power cuts, have led the state government to propose investing directly in battery storage and a gas - fired power plan
In South Australia, concerns over high levels
of renewables causing grid instability at
times of summer
peak demand, combined with a couple
of large - scale power cuts, have led the state government to propose investing directly
in battery storage and a gas - fired power plan
in battery storage and a gas - fired power plant.
Other provisions
in the act — such as tax incentives that encourage the adoption
of energy - efficient technologies, a shift to more combined heat and power generation, and the adoption
of real -
time pricing
of electricity (a measure that will discourage optional electricity use during
peak demand periods)-- would cut electricity
demand enough to avoid building an additional 37 coal - fired power plants.
It does three main things: First, it can store solar energy if you have solar panels; second, it can store energy from the grid off -
peak when power is cheapest (
in places where utilities have
time -
of - use dynamic pricing) and release it when power is most expensive, saving you money and smoothing out the
demand peak, which is good for the grid overall.
It's true that the batteries
in all those cars provide a huge amount
of storage, so that they could be charged at off -
peak times, but it still is going to create a lot
of demand for electricity, and it is all pointless if it's not clean electricity.
More and more, electricity markets are purchasing the lack
of electricity use as a commodity, as «
demand response» options,
in which companies lower their energy use at
times of peak demand to reduce burdens on the grid, proliferate.
During a heatwave
in North America on 22 July, when grid operators were experiencing record
demand peaks and prices had shot up to 10
times the 2011 average — US$ 530 / MWh — EnerNOC provided over 1,200 MW
of demand response across several U.S. states and Ontario, effectively delivering «negawatts» into the system.
On top
of this, the report notes that solar thermal cooling technology -
in which the sun's heat is used to power thermally driven absorption chillers or evaporation devices to cool air - can reduce the burden on electric grids at
times of peak cooling
demand by fully or partially replacing conventional electrically powered air conditioners
in buildings.
There is much interest
in «smart
demand» system, e.g.
time - shifting electricity use by incentivising customers to run their energy consumption appliances off -
peak, through
time -
of - use tariffs delivered through smart meters.
Firstly, a requirement for policy to target the growth
in peak demand via
time of supply feed -
in tariff for small generation units.
Instead
of a single or other simple (e.g. night and day) tariff, dynamic pricing and more complex tariff structures are expected to be introduced to allow «
demand response»,
in other words, to allow customers to buy electricity at constantly changing prices, thereby cutting
demand at
peak times, and thus, resulting
in a lower need for
peak capacity as well as better integration
of renewable energy sources.
A power outage affecting 11,000 customers
in the Sydney suburbs
of Burwood and Strathfield at around the
time of peak electricity
demand (around 4 pm) was not caused by load - shedding, but would have reduced power
demand at a critical
time.
Furthermore, close monitoring
of Germany's ability to meet electricity
demand at
peak times should continue
in the medium term.
Apple explained the slowdown
in a statement: «Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.
Apple's statement says, «Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.»
«Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components,» Apple has explained.
The Cupertino - based company told TechCrunch that lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, when they have a low battery charge or as they age over
time which can result
in a device unexpectedly shutting down to protect its electronic components.
Lithium - ion batteries, which are used
in iPhones, «become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge, or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components.»
«Lithium - ion batteries become less capable
of supplying
peak current
demands when
in cold conditions, have a low battery charge or as they age over
time, which can result
in the device unexpectedly shutting down to protect its electronic components,» Apple explained.