Method and apparatus for storing and using energy to reduce the end-user cost of energy
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-011/00
F03D-009/00
F03D-009/02
F25D-003/00
B60K-016/00
F03G-006/00
F02C-006/00
F02C-006/16
H02P-009/00
출원번호
US-0973276
(2004-10-27)
발명자
/ 주소
Enis,Ben M.
Lieberman,Paul
출원인 / 주소
Enis,Ben M.
Lieberman,Paul
인용정보
피인용 횟수 :
58인용 특허 :
18
초록▼
The invention relates to an energy storing method and apparatus for use by end-users of energy, such as commercial property owners and operators. The system differs from past systems, insofar as it is not intended to be used by and in connection with energy suppliers, such as large utility and power
The invention relates to an energy storing method and apparatus for use by end-users of energy, such as commercial property owners and operators. The system differs from past systems, insofar as it is not intended to be used by and in connection with energy suppliers, such as large utility and power supply plants and grids. The system preferably relates to the manner in which an end-user of energy can implement energy and costs savings, by using energy storage and time-shifting methods, to control and regulate the consumption of energy in a manner that achieves a cost savings over a period of time. One aspect of the method relates to accurately forecasting and predicting the energy demands and peaks that might occur on a daily basis, by recording and analyzing the prior day's history, as well as the overall energy demand histories, using short and long term forecasts, and then setting up a variable energy storage/use plan or schedule that helps to reduce the peak demands by time-shifting the energy that is used, i.e., reducing consumption during high demand/high cost periods, and using the energy stored during low demand/low cost periods during the high demand/high cost periods.
대표청구항▼
What is claimed is: 1. A method of reducing the end-user cost of energy at a predetermined location, comprising: providing an energy storage system comprising at least one tank and compressor capable of storing energy in the form of compressed air energy; locating said system at an end-user site, w
What is claimed is: 1. A method of reducing the end-user cost of energy at a predetermined location, comprising: providing an energy storage system comprising at least one tank and compressor capable of storing energy in the form of compressed air energy; locating said system at an end-user site, wherein said end-user is a consumer of energy rather than a supplier; forecasting how much energy will be used at said site during a second period of time, during which the energy cost is at a relatively high second rate; determining the nature and extent of the peak power surges and/or spikes that are expected to occur at said site during said second period of time; storing in said tank a predetermined amount of compressed air energy from an energy source during a first period of time, during which the energy cost is at a relatively low first rate, wherein said first period of time is prior to said second period of time; and using the compressed air energy from said tank in a manner that helps offset the amount of energy used at said site during said second period of time, and offset the peak power surges and/or spikes occurring at said site during said second period of time, such that the surges and/or spikes are substantially reduced or eliminated. 2. The method of claim 1, wherein the energy source is a power grid connected to the system that can be accessed to supply energy into storage. 3. The method of claim 1, wherein said site is a commercial property, and wherein the storage system is used to lower the overall cost of energy at said commercial property. 4. The method of claim 1, wherein the energy storage system comprises at least one device taken from the group consisting of: a. a solar thermal collector; b. thermal inertia mass; c. thin walled tubing with anti-freeze distributed inside the tank; d. fossil fuel burner; e circulation device for using hot air from the compressor. 5. The method of claim 1, wherein the method comprises developing an energy usage schedule for the second period of time to determine how the energy from storage should be used during said second period of time. 6. The method of claim 5, wherein the method comprises determining the amount of a demand charge that may be applied at said site based on the spikes and/or surges that may occur during said second period of time, and developing the energy usage schedule to reduce and/or offset the spikes and/or surges. 7. The method of claim 1, wherein the energy storage system comprises at least one turbo-expander and generator to release the compressed air energy and generate electricity during said second period of time. 8. The method of claim 7, wherein the energy storage system is adapted to use cold air from the turbo-expander for cooling and/or refrigeration purposes at said site. 9. The method of claim 1, wherein the energy storage system comprises an indicator for measuring the energy consumption rate at said site to determine how much energy in storage should be released at any given moment in time to off-set the peak power spikes and/or surges that can occur at said site. 10. The method of claim 9, wherein the indicator is a consumption meter that can determine how much energy in storage should be released at any given moment in time. 11. A method of reducing the end-user cost of energy at a predetermined location, comprising: providing an energy storage system comprising at least one tank and compressor capable of storing energy in the form of compressed air energy; locating said system at an end-user site, wherein said end-user is a consumer of energy rather than a supplier; determining the nature and extent of the peak power surges and/or spikes that are expected to occur at said site during a second period of time, during which demand charges are assessed based on the level of said peak power surges and/or spikes; storing in said tank a predetermined amount of compressed air energy from an energy source during a first period of time, during which the energy cost is lower than during said second period of time, wherein said first period of time is prior to said second period of time; and using the compressed air energy from said tank in a manner that offsets the peak power surges and/or spikes occurring at said site during said second period of time, such that said peak power surges and/or spikes are substantially reduced or eliminated. 12. The method of claim 11, wherein the energy source is a power grid connected to the system that can be accessed to supply energy into storage. 13. The method of claim 11, wherein said site is a commercial property, and wherein the storage system is used to lower the overall cost of energy at said commercial property. 14. The method of claim 11, wherein the energy storage system comprises at least one turbo-expander and generator to release the compressed air energy and generate electricity during said second period of time. 15. The method of claim 11, wherein the energy storage system comprises at least one device taken from the group consisting of: a. a solar thermal collector; b. thermal inertia mass; c. thin walled tubing with anti-freeze distributed inside the tank; d. fossil fuel burner; e. circulation device for using hot air from the compressor. 16. The method of claim 11, wherein the energy storage system comprises an indicator for measuring the energy consumption rate at said site to determine how much energy in storage should be released at any given moment in time to off-set the peak power spikes and/or surges that can occur at said site. 17. The method of claim 16, wherein the indicator is a consumption meter that can determine how much energy in storage should be released at any given moment in time. 18. The method of claim 11, wherein the method comprises forecasting how much energy will be used at said site during said second period of time, and determining how much compressed air energy will need to be stored in said tank to offset the energy used at said site, and to offset the peak power surges and/or spikes that are expected to occur at said site during said second period of time. 19. The method of claim 18, wherein the method comprises developing an energy usage schedule for the second period of time to determine how the energy from storage should be used during said second period of time. 20. The method of claim 19, wherein the method comprises determining the amount of the demand charge that may be applied during said second period of time, and developing the energy usage schedule to reduce and/or offset the peak power spikes and/or surges during said second period of time.
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