Sentences with phrase «when electricity demand»

It is in winter when electricity demand is highest in Victoria, for home and water heating; winds tend to be strongest and most consistant in winter, so wind power would be well suited to at least partly take the place of gas in that state.

The milder temperatures also mean that spring (and fall) are when electricity demand is generally lowest.

Wind power has many defects, one of which is that it is windiest in the spring and fall, when demand for electricity is at its low ebb, and least windy in the summer and winter, when electricity demand peaks.

When water becomes scarce, or when water temperatures become too warm for cooling, power plants must reduce their electricity production — often at times when electricity demand is highest.

Each of these 84 instances was for ICE's off - peak product for power delivered during the periods of time when electricity demand is lowest (including a block of eight hours overnight as well as all day Sunday).

From a temporal perspective, OSW is typically strongest during daylight hours (when electricity demand peaks), while onshore wind tends to be strongest at night (when demand is lower)(Hartman 2014).

The fee might depend on how much electricity you buy during peak hours when electricity demand is the highest.

It also fluctuated daily, from 0 % on summer days, when electricity demand was high, to 94 % on winter days, when demand was lower.

«This is almost a mirror image of wind production patterns: wind is highest in the spring and fall, when electricity needs are lowest, and lowest in summer when electricity demand peaks,» the report notes.

So - called dispatchable solar farms would in theory allow utilities to avoid spending billions of dollars building fossil fuel power plants that are fired up only a few times a year when electricity demand spikes, like on a hot day.

Wave energy has many important advantages over other energy sources, including the increase it gains in power over winter, when electricity demand peaks; low environmental costs; and the ability of satellites to predict waves two days in advance.

California's wind resources and generator output tends to peak during the summer at a time when electricity demand in the state is also relatively high.

But when electricity demand rose throughout the 1980s at nearly the same rate it had in the 1970s, anti-nuclear groups stood by and watched as coal plants were built instead.

The obvious next step is to modestly expand the electrical storage capacity of the gas - electric hybrids so that owners can plug in their hybrids to recharge the batteries during the nighttime hours when electricity demand drops.

WHEN electricity demand peaked at the height of this week's heatwave in southern Australia, the total power output from the fleet of wind farms across Victoria and South Australia was almost zero.

During the summer when electricity demand in California is 50 percent higher than in the winter, less curtailments are needed.

At the same time, old, inefficient «peaker» units — so - called because they run no more than 77 hours a year when electricity demand in the state is at its highest — will be shut down or replaced by newer natural gas — fired turbines.

How it works: Electric trains loaded with rocks or dirt travel up a slope when electricity demand is low.

How it works: Electric vehicles can double as batteries plugged into the grid, saving up power at night when electricity demand is low.

Arias says Torresol can either run the plant until the battery is exhausted, or it can modulate the power of the turbine during darkness so it is at its maximum between 11 and 11.30 pm, when electricity demand — and price — peaks, «so we are able to reach the next day without stopping the turbine».

Load shifting — The battery can provide economic benefit to its owner and the grid by charging during low rate periods when demand for electricity is lower and discharging during more expensive rate periods when electricity demand is higher.

However, they can deliver power during the peak usage daylight hours, when electricity demands are typically highest at offices and factories.

Not exact matches

When demand for electricity is again high, the system is reversed: The weight of the water forces the air back to the surface, where it collects the stored heat and drives an expander, reproducing approximately 70 per cent of the input electricity and releasing the air back into the environment.

The units at NRG's Oswego Steam Station, where the company said 82 people work, operate only on the coldest or hottest days of the year, when there is a peak demand for electricity.

The switches could be programmed to shut off when power demands on the grid (and hence electricity prices) peaked.

Given the right financial incentives, though, many households may accept smart grid strategies that let utilities reduce power consumption in homes at peak periods of demand, when wholesale electricity prices are highest, some analysts conclude.

Simply controlling where and when electric cars charge could go a long way to easing any spikes in electricity demand

When generators fail, as they did last winter in Texas, controllers lean on «demand - response customers» — large electricity users, like factories, that are paid to be on call, ready to use a little less or even shut everything off at a moment's notice.

How it works: When demand is low, electricity is used to freeze or chill water that is stored in tanks on rooftops or inside buildings.

When demand is high, the salt's heat turns water into steam to drive a turbine, making electricity.

To keep the grid humming, electricity has to be tucked away for times when demand exceeds supply.

How it works: When demand is low, electricity is sent to a motor that accelerates a cylinder spinning in a case, which is vacuum - sealed to reduce friction.

The way to make renewables more reliable is to store the excess electricity generated during times of plenty (when there are high winds, for instance, or strong sun) and release it later to match the actual demand.

That leaves two ways of meeting electricity demand when the wind drops.

During the day, when demand for electricity is higher, power will be generated by both the wind turbines and water flowing from the upper reservoir to the lower.

When demand for electricity dies down at night, power generated by the wind turbines will be used to pump water from the lower reservoir back to the upper reservoir, replenishing it.

And the power grid could be modernized to use cheaper, greener fuels such as sunlight or wind even on days when the sun doesn't shine bright enough or the wind doesn't blow hard enough to meet electricity demand.

Excess electricity from the wind farms can be stored in the batteries and fed into the system later, when wind is low and demand is high.

For example, on a hot summer evening when electricity is in high demand for air - conditioning, the system could drop the amount of power going to an individual car from 3.3 kilowatts to just 1.2 kW or even less, explains Paul Pebbles, GM's global manager of Electric Vehicle and Smart Grid Services.

As electricity use spikes across the country in the summertime when more people use air conditioning, electric power companies turn to more coal and natural gas power plants to help meet the demand, reducing renewables» share of total U.S. power generation, Comstock said.

The infant solar power companies, however, must gain their foothold by taking business away from the incumbent and politically powerful coal, natural gas and nuclear power providers, at a time when overall growth in U.S. electricity demand is still slowed by an underperforming economy.

Peakers are power plants usually using natural gas, that generally run only when there's a high demand or peak demand for electricity.

The recommendations, in addition to flying less and wasting 25 percent less food, include: carpooling or telecommuting once a week (75 million metric tons of CO2 equivalent (CO2e) saved by 2020, if adopted by all Americans); maintaining your car or truck, such as keeping tires properly inflated (45 million metric tons of CO2e); cutting the time spent idling in a vehicle in half (40 million metric tons of CO2e); better insulation at home (85 million metric tons of CO2e); programmable thermostats set higher (80 million metric tons of CO2e); reducing electricity demand from appliances that are «off,» so - called phantom demand (70 million metric tons CO2e); using hot water more efficiently, such as washing clothes in colder water (65 million metric tons of CO2e); buying EnergyStar appliances when old ones wear out (55 million metric tons CO2e); replacing incandescent lightbulbs with compact fluorescents (30 million metric tons CO2e); eating chicken instead of beef two days a week (105 million metric tons of CO2e); increased recycling of paper, plastics and metals (105 million metric tons of CO2e); «responsible» consumption, such as buying less bottled water (60 million metric tons CO2e).

When there's a demand for electricity, the water is released to flow down the hill, turning turbines to run a generator.

They are popular during the peak electricity demand hours of between 4 pm and 8 pm (when carbon emissions due to generation on UK National Grid are highest), but watching is particularly popular in the late hours before bedtime.

It looks at where and when electricity will be generated by wind, solar and other plants, and at the demand from large users such as supermarkets.

Examples include the on - demand coolant pump, the map - controlled oil pump and the Electric Power Steering system, which only consumes electricity when steering assistance is actually required.

The purpose of the HV battery is to use electricity when the gas engine is not efficient — when power demand is very low (less than 15hp).

When full acceleration is demanded, the electric motor in the front driveline becomes a generator that sends engine - generated electricity to the rear - axle motor.

Although it will not be available on the US models at the time of launch, the Brake Energy Regeneration feature ensures that the output coming from the engine is converted primarily into drive power, with electricity being generated for the on - board network only when the engine's drive power is not in demand; for example, when the car is rolling freely in overrun (engine braking) or during application of the brakes.