Help


[permalink] [id link]
+
Page "Pumped-storage hydroelectricity" ¶ 2
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

Low-cost and power
Low-cost power strips often come with only one MOV mounted between the live and neutral wires.

Low-cost and is
Low-cost high-volume-produced patio door safety glass is an inexpensive way to accomplish this goal.

Low-cost and used
Low-cost Ethernet networking was used for interconnection instead of any special-purpose network.

Low-cost and .
Low-cost time base correctors ( TBC ) specifically designed to work with the Toaster quickly came to market, most of which were designed as standard Amiga bus cards.
Low-cost production quality was typical for early black metal artists with low budgets, where recordings would often be done in their homes or basements.
Low-cost systems use a radar altimeter, barometric altimeter and clock to navigate a digital strip map.
Low-cost " home theater in a box " systems advertise their integration and simplicity.
Low-cost commercial vans and 4WDs in Australia continued with carburetors even into the 2000s, the last being the Mitsubishi Express van in 2003.
Low-cost processors now allow higher-speed, but more complex, serial communication standards such as USB and FireWire to replace RS-232.
Low-cost units may be disposable with no provision to replace batteries or bulbs, and are sometimes imprinted with advertising for promotional purposes.
Low-cost Mexican airline Volaris started service between OAK and the airline's two main locations: Guadalajara, and Toluca on July 16, 2009.
The north pier features a more minimalistic design with walk-boarding-gates instead of jet bridges to cater to high demand from no-frills Low-cost airlines.
Low-cost carrier Presidential Airways also began service from the Jetport in 1986, flying a route from Portland to Washington's Dulles International Airport.
Low-cost wide-angle lens add-ons are available for many cameras and some can even be fitted outside the camera housing for versatile use.
; Low-cost computer hardware: Leveraging the technology of personal computers, adding a microprocessor enabled complex control functions to be expressed in software rather than wiring.
; Low-cost, high-capacity memory: By 1995, a music workstation might have 16 to 64 megabytes of memory in a few chips, which had required a rack of cards in 1985.
Low-cost accelerometers replace the mercury tilt switch in precision applications.
** Low-cost infrastructure elements that can increase the speed and reliability of bus service in lanes shared with general traffic include Bus bulbs, boarding islands, and curb realignments.
Low-cost carrier business model practices vary widely.
Low-cost carriers are intended to be low-cost, so in many cases employees work multiple roles.
The organization and its founder, Muhammad Yunus, were jointly awarded the Nobel Peace Prize in 2006 ; the organization's Low-cost Housing Program won a World Habitat Award in 1998.
Low-cost passive RFID tags were designed to uniquely identify each item manufactured.
The program involved demolishing the rest of the makeshift houses left untouched by the fire, and the construction of the Shek Kip Mei Low-cost Housing Estate in their place.
* The May 1977 Dr. Dobb's Journal reprinted an article by Joseph Weisbecker of RCA Laboratories (" A Practical, Low-cost, Home / School Microprocessor System ") describing the design philosophies and economies that went into designing the VIP -- which was at the time called FRED (" Flexible Recreational and Educational Device ").
Low-cost airlines remain a commonly-referenced example of a contestable market ; entrants have the possibility of leasing aircraft and should be able to respond to high profits by quickly entering and exiting.

off-peak and electric
Net metering enables small systems to result in zero annual net cost to the consumer provided that the consumer is able to shift demand loads to a lower price time, such as by chilling water at a low cost time for later use in air conditioning, or by charging a battery electric vehicle during off-peak times, while the electricity generated at peak demand time can be sent to the grid rather than used locally ( see Vehicle-to-grid ).
A study conducted by the Pacific Northwest National Laboratory for the US Department of Energy in December 2006 found that the idle off-peak grid capacity in the US would be sufficient to power 84 % of all vehicles in the US if they all were immediately replaced with electric vehicles.
" Time of day " metering allows electric rates to be changed during a day, to record usage during peak high-cost periods and off-peak, lower-cost, periods.
* Zellweger off-peak, the brand-name of an electric switching device
For over 20 years, shifting the electric demand used to cool the building from on-peak to off-peak hours has saved the property over on electric utility bills.

off-peak and power
They can reverse flow and operate as a pump to fill a high reservoir during off-peak electrical hours, and then revert to a turbine for power generation during peak electrical demand.
In the USA it has been estimated there is already nearly sufficient existing power plant and transmission infrastructure, assuming that most charging would occur overnight, using the most efficient off-peak base load sources.
Often underground power stations form part of pumped storage hydroelectricity schemes, whose basic function is to level load: they use cheap or surplus off-peak power to pump water from a lower lake to an upper lake, then, during peak periods ( when electricity prices are often high ), the power station generates power from the water held in the upper lake.
With an advance forecast of demand and pricing flexibility, buyers will self-sort based on their price sensitivity ( using more power in off-peak hours or going to the theater mid-week ), their demand sensitivity ( must have the higher cost early morning flight or must go to the Saturday night opera ) or their time of purchase ( usually paying a premium for booking late ).
The time of off-peak charging is usually seven hours between midnight and 7. 00am GMT, and this is designed to power storage heaters and immersion heaters.
Vehicle-to-grid systems could be installed at workplace parking lots and garages and at park and rides and could help drivers charge their batteries at home at night when off-peak power prices are cheaper, and receive bill crediting for selling excess electricity back to the grid during high-demand hours.
Storage heaters usually provide two power circuits, one for on-peak and one for off-peak electricity, and two power switches, which are switched off during the summer when heat is not required.
In some countries, the current design of the electrical generating system may result in a surplus of electricity from base load power stations during off-peak periods, and storage heaters may then be able to make use of this surplus to increase the net efficiency of the system as a whole.
During periods of off-peak power use, surplus energy generated at Hyatt is used to lift water from Thermalito's lower reservoir ( the Thermalito Afterbay ) to the forebay, which releases water back into the afterbay to generate up to 114 MW of power at times of high demand.
In many locations, mills operate during off-peak hours when utilities have surplus power generating capacity.

off-peak and is
This is often referred to as " off-peak " cooling.
Superimposed on these mode-specific regimes is the Travelcard system, which provides zonal tickets with validities from one day to one year, and off-peak variants.
As of January 2010, The top 4 ISPs in Iraq's capital city of Baghdad are: MASARAT telecom, offering speeds up to 40 megabits and it is the fastest internt in Iraq " Earthlink which provides a download speed of up to 5. 0 megabits per second ( Mb / s ) in off-peak times and a download / upload speed of 1024 / 128 kilobits per second ( Kb / s ) at peak utilization ; ( Rose Telecom ) provides speeds up to 4 / 0. 7 Mbit / s in off-peak times and 512 / 128 kbit / s at peak ; / s in off-peak times ; and ATS-Iraq, which targets the home and single user demographic.
The water level can fall by tens of feet per hour and during off-peak times water is pumped back into the lake for the next peak period.
The current off-peak service pattern is:
The normal off-peak service is four trains an hour to and from Finchley Central, but through trains are provided during peak hours, and when the line is disrupted by engineering works.
). The typical off-peak service is four trains an hour northbound to London Victoria ( via Herne Hill and Brixton ) and four trains an hour southbound to Orpington ( via Bromley South ).
The promise is the economical use of off-peak electricity at night to chill water for the air conditioning use during the day.
Three years after it opened, the TTC renovated its southwestern terminus at Kennedy Station, because the looped turnaround track, originally designed for uni-directional streetcars under the earlier plan and not needed for the bi-directional ICTS trains, was causing derailments ; it was replaced with a single terminal track and the station was thus quasi-Spanish solution, with one side for boarding and another side for alighting, though the boarding side is also used for alighting during off-peak hours.
The typical off-peak service from the station is:
There is an Off-Peak Discount Pass ( in Dutch: Dal Voordeel ) for € 50 per year, allowing a 40 percent discount on journeys starting in off-peak hours.
There is also an Off-Peak Free Pass ( in Dutch: Dal Vrij ) for € 1140 per year, allowing free journeys which each start in the off-peak hours ( compare the OV-Jaarabonnement ).
These prices are higher than those of the Southern stopping services on the same route ( between £ 13. 20 and £ 13. 70 for a standard class, adult single fare, depending on whether the time of travel is peak / off-peak and whether the route is restricted to Southern trains only, or any non-Gatwick Express train ).
The typical off-peak train service per hour is:
The typical off-peak tram service per hour is:
The typical off-peak National Rail service from the station is:
The typical off-peak service from the station is:
Instead, station staff inspect tickets at peak times, while at off-peak times there is often no ticket checking.
The basic Monday to Saturday off-peak service is as follows:
As of December 2010 the typical off-peak service from the station is:
The typical off-peak service frequency for c2c is:

0.187 seconds.