FI129211B - Energy control method and arrangement - Google Patents

Energy control method and arrangement Download PDF

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Publication number
FI129211B
FI129211B FI20187132A FI20187132A FI129211B FI 129211 B FI129211 B FI 129211B FI 20187132 A FI20187132 A FI 20187132A FI 20187132 A FI20187132 A FI 20187132A FI 129211 B FI129211 B FI 129211B
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energy
component
chemical compound
storage facility
power grid
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FI20187132A
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Finnish (fi)
Swedish (sv)
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FI20187132A1 (en
Inventor
Ari Järvinen
Harri Sopo
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Tercosys Oy
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Priority to FI20187132A priority Critical patent/FI129211B/en
Priority to US17/275,147 priority patent/US11873565B2/en
Priority to EP19860383.9A priority patent/EP3850125A4/en
Priority to PCT/FI2019/050639 priority patent/WO2020053478A1/en
Publication of FI20187132A1 publication Critical patent/FI20187132A1/en
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Publication of FI129211B publication Critical patent/FI129211B/en

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/14—Alkali metal compounds
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/02—Electrolytic production, recovery or refining of metals by electrolysis of solutions of light metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/02—Electrolytic production, recovery or refining of metals by electrolysis of melts of alkali or alkaline earth metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy specially adapted for power networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in networks by storage of energy
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/10—Fuel cells in stationary systems, e.g. emergency power source in plant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/10—Applications of fuel cells in buildings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/20—Improvements relating to chlorine production
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/50—Energy storage in industry with an added climate change mitigation effect

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Hybrid Cells (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Automation & Control Theory (AREA)

Abstract

Kohteena on energianhallintamenetelmä, käsittäen askeleet: johdetaan (304) sähköenergiaa energiantuotantolaitoksesta (110, 112, 114, 140) energian varastointilaitokseen (120), käytetään vastaanotettua sähköenergiaa energian varastointilaitoksessa (120, 220) kemialliseen yhdisteeseen sen erottamiseksi ensimmäiseen komponenttiin (224) ja toiseen komponenttiin (226), ja varastoidaan ensimmäinen komponentti (224) ja toinen komponentti (226) erillään energian varastointilaitoksessa (120, 220).The subject is an energy management method comprising the steps of: conducting (304) electrical energy from an energy production plant (110, 112, 114, 140) to an energy storage plant (120), using received electrical energy at the energy storage plant (120, 220) to separate a chemical compound into a first component (224) and a second component (226), and storing the first component (224) and the second component (226) separately in the energy storage facility (120, 220).

Description

ENERGY MANAGEMENT METHOD AND ARRANGEMENT
FIELD The present invention relates to a method and arrangement for storing and recovering energy.
BACKGROUND Employment of renewable energy is increasing rapidly in modern power systems. Also there is a continuous need for energy storage solutions as the pro- duction of energy does not always match the level of consumption of the consum- ers.
Several alternative ways have been proposed for storing excess en- ergy, such as by using hydroelectric, compressed air or thermal energy storages or by using flywheels to name a few examples.
However, there still exists a need for a new alternative having high ef- ficiency and low environmental impact.
SUMMARY The object of the invention is to provide an improved solution for energy management including energy storage and/or recovery upon need.
The object is achieved with an invention defined in the independent claims. Some advantageous embodiments have been disclosed in the dependent claims.
DRAWINGS The invention and some advantageous embodiments have been illus- co trated in the accompanying drawings, where > Figure 1 shows a high level architecture of the embodiments; 2 Figure 2 shows a more detailed view of an energy storage; - Figure 3 shows one embodiment of a method; and Figure 4 shows one embodiment of a control system. a a
N DESCRIPTION OF SOME EMBODIMENTS = The embodiments relate to energy management. In the embodiments, = there is provided an energy management method and energy management system N for providing energy to users. Specifically, the embodiments relate to usage of an energy storage, that is, to storing and/or recovering energy to/from the energy stor- age.
Figure 1 illustrates the architecture of an energy management system 100 of the invention on a high level.
There is provided a power grid/network 102 for distributing energy pro- duced by the energy provides to the consumers connected to the power network. As one example of the consumers connected to the power network, Figure 1 shows industrial consumers 104 including factories, other industrial facilities or traffic us- ers, for instance. As another major group of consumers, Figure 1 shows private users 106 including households, for instance.
To satisfy the energy needs and requirements of the consumers 104, 106, the energy management system comprises energy providers or energy pro- duction plants also connected to the power network 102. As examples of the en- ergy providers, Figure 1 shows a wind farm 110, a solar farm 112 and a hydro energy plant 114. Each of these renewable energy sources 110, 112, 114 can be directly connected to the power network for provision of energy to the network and subsequently to the consumers 104, 106. There may also be a backbone energy provider 140, which may include a nuclear power plant, for instance, for providing most of the energy needed in the grid. Some quick adjustment power provided by a fossile power source, such as coal, may also be connected to the power network
102.
The produced amount of energy from the renewable energy sources cannot be fully predicted beforehand but that depends on environmental weather conditions such as wind, sunshine and rain. If the share of the renewable energy is large in the power network, and the environmental conditions for producing the © energy are good, there may be excess energy exceeding the consuming capability S of the users connected to the power network. In such situations there is need for N capacity of storing energy received from the renewable sources to be used later. <Q In terms of storing energy, the system comprises an energy storage - 120. As shown in Figure 1, all the renewable energy sources 110, 112 and 114 E may be connected to the energy storage. Even the backbone energy source may N be connected to the energy storage. For instance, in the case of nuclear energy, = adjustment of the energy production is difficult or impossible, whereas such energy = not being consumed by the consumers can be advantageously stored in the en- N ergy storage facility 120.
The energy storage 120 functions as a further energy source when ad- ditional energy is needed to fulfil the needs of the industrial and household users.
Figure 2 shows a more detailed illustration of the energy storage 220. The energy storage comprises a compound storage 222 for storing a compound. In one embodiment, the compound comprises salt, that is, sodium chloride (NaCl). The dashed line leading to the compound storage 222 denotes energy received from renewable energy sources, for instance. The energy, such as electric energy can be applied in the compound storage in a so called Downs’ process. Even though reference is made in the following to Downs’ process, the embodiments are not limited to use of that process but any corresponding process to separate a chemical compound to components may be applied. Furthermore, the embodi- ments are not limited to whether the received electric energy is applied directly or indirectly on the compound. Indirect application refers here to conversion of the energy to another form of energy, such as thermal energy.
In the Downs’ process there is provided a carbon anode and an iron cathode, where molten sodium chloride is applied as an electrolyte. Melting of so- dium chloride needs a temperature approximately 800 Celsius but when melted can be kept liquid at temperature approximately 600 Celsius depending on the composition of the compound. In an embodiment calcium chloride CaClz is applied in the compound so that the share by weight of calcium chloride is 2/3 of the mix- ture and sodium chloride 1/3. In the embodiments of the present invention, the energy received from the energy sources can be used also the heat and melt the electrolyte.
In the Downs’ process, as an outcome of the process sodium metal and chlorine gas are obtained as results. Both are less dense than the electrolyte and © float to the surface and can be separated into separate storages 224 and 226.
S In the inverse process when energy is wished to be recovered from the N system, the compound components sodium and chloride are recovered from their P respective storages 224, 226 and brought together in the chamber 228. When the - sodium and chloride are brought together, sodium chloride is formed and energy E is released.
N As a result of the chemical process, the energy is output in the form of = thermal energy, which may be converted in a generator 230 to electric energy.
= Even though above reference has been made to sodium chloride or a N mixture containing sodium chloride, also other alkaline metals can be used instead of sodium in combination with chloride or other halogens. Most advantageously the compound is or at least comprises, however, sodium chloride, being a sub- stance being readily available in large quantities thereby providing a cost efficient alternative.
Figure 3 illustrates one embodiment of the invention. The embodiment is applicable in a power system, comprising a power network to which consumers of electric energy are connected to. In the embodiment, there are also one or more producers of energy also coupled to the power network. Mainly the embodiment shows the method from the point of view of an operator or service provider of the electric network and the method specifically focuses on how it is possible to bal- ance and optimize usage of electric energy in the network.
In step 302, the service provider has a storage or reservoir of a com- pound. In a preferred embodiment the compound is or at least comprises salt, that is, sodium chloride. The compound may be arranged into a container or chamber.
In step 304, there may occur a situation when the energy producers are capable of producing more energy than the consumers are consuming for the mo- ment, and/or in the close future. The future consumption may be estimated based on past experience of the consumption as a function of time of the day, and weather conditions, for instance. The situation of over production may take place in a network where a substantial share of the energy production takes place by renewable energy being wind, solar and hydro energy.
Further in step 304, the received energy is utilized to separate the com- pound to components. In an embodiment, if the compound is salt, the process may be a so called Downs’ process for separating the sodium and chloride. In the first stage of the Down process, the compound is heated to a melted status. The energy received from the power network may be applied also for this stage. That is, the © electric energy may be led to a resistor associated with the chamber housing the S compound to heat it up. When the compound has been melt, the Downs' process N can be initiated, and the sodium and chloride obtained can be led to respective P containers or chambers according to step 306.
- By the method illustrated by steps 302 to 306 significant advantages E can be achieved in that the overproduction of electricity can be recovered and N stored instead of the network operator being obliged to sell the overproduction for = consumers that are prepared to consume or waste the received excess energy. = Steps 308 to 312 show a second phase of the method. In 308, there is N detected that the consumption in the power network exceeds the production and energy could be recovered from the energy stored in steps 302 to 306.
In step 310, the sodium and chloride from their respective chambers are brought together in a reaction chamber, whereby salt and thermal energy are pro- duced as the outcome. The thermal energy may then be further processed in the electric plant to produce electric energy. In step 312, the produced electric energy is released to the power network to satisfy the increased need of energy by the consumers.
Figure 4 shows an example of the total energy management system according to the invention.
Correspondingly as was shown in connection with Figure 1, there are provided energy consumers 404, 406 connected to a power grid 402. To the power grid are also connected multiple energy producing plants 410, 412, 414 and 440. The energy producing plants provide mainly energy to the power grid 402 but in circumstances when there is excess energy over the consumption of the consum- ers, the energy may be conducted to the energy storage 420.
Figure 4 shows a control system 450 for controlling different operations in the energy management system 400. There may be provided a production level monitoring system 452, 454, 456 and 458 for each of the energy production plant. For example, the monitoring system 452 monitors the current production capacity of the wind power plant 410. The solar monitoring system 454 monitors the actual production of the solar power plant 412, and similarly the monitoring systems 456 and 458 monitor the production of the hydro 414 and nuclear 440 power plants.
The monitoring system 450 may also comprise a grid consumption measuring unit 470 for measuring and/or estimating the grid consumption. The consumption may, for instance, be estimated based on weather prognoses and usual consumption patterns of the users depending on the time of the day, for instance.
2 The energy storage control unit 460 may control one or more energy & storages 420 by monitoring the energy storage capability, for instance. In this con- <Q trolling it may be monitored how much of the capacity of the energy storage has - been used and how much is still available.
E In the overall controlling, the controlling unit 450 may perform decisions N whether to store energy from one or more energy producing plants to the energy = storage or whether to release energy from the energy storage for consumers in the = power grid.
The embodiments disclosed above provide the significant advantage in that the working material or compound is fully recyclable. When the working mate- rial has been applied the full operation cycle, that is, been split into components and then combined again into the compound, the original material is again fully usable for storage of energy. Compared to use of fossile fuels, for instance, whose circulation time is calculated in millions of years, the embodiments provide an ex- tremely rapid and environmentally sustainable use of resources. It is evident that when the technology develops, the invention can be implemented in other ways. The invention and the embodiments are thus not lim- ited to the preceding embodiments but can vary in the scope of the attached claims.
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Claims (8)

1. An energy management method, comprising: conducting (304) electric energy produced by an energy production plant (110, 112, 114, 140) to an energy storage facility (120, 220), character- ized bythe method comprising: applying, in the energy storage facility (120, 220), the received electric energy on a chemical compound (222) to separate the chemical compound to a first component (224) and a second component (226), wherein the first component comprises an alkaline metal and the second component comprises a halogen gas; storing (306), in the energy storage facility (120, 220), the first compo- nent and the second component separately; and bringing (310) the first component and second component together to return the original chemical compound and to produce energy to the power grid when needed.
2. The energy management method according to claim 1, charac- terized by: detecting an over production situation in a power grid where all the en- ergy available is not consumed by consumers connected to the power grid; and initiating the conducting of electric energy from the energy production plant to the energy storage facility upon detection an over production situation in the power grid. :
3. An energy management method according to any preceding claim, N characterized by: > the chemical compound comprises sodium chloride, whereby the first <Q component is sodium and the second component is chloride.
O z
4. An energy management method according to any preceding claim, N characterized by: ~ heating the solid chemical compound to liquid form; = applying Downs' process to separate the first component and second N component from each other.
5. The energy management method according to claim 1,charac- terized by: bringing (310) the first component and second component together to produce thermal energy; and converting the thermal energy to electric energy to be released to the power grid.
6. An energy management arrangement, comprising: an energy storage facility (120, 220) for storing energy, comprising: means for receiving electric energy from an energy production plant (110, 112, 114), characterized in that the energy storage facility further comprises: means for applying the received electric energy on a chemical com- pound to separate the chemical compound (222) to a first component (224) and a second component (226), wherein the first component comprises an alkaline metal and the second component comprises a halogen gas; means for storing the first component and the second component sep- arately; and means for bringing (310) the first component and second component together to return the original chemical compound and to produce energy to the power grid when needed.
7. The energy management arrangement according to claim 6, char- acterized in that the energy storage facility comprises sodium chloride as the chemical compound, whereby the first component is sodium and the second _ component is chloride.
S > 8. The energy management arrangement according to claim 7, = characterized bythe energy storage facility comprising: — means for bringing (228) the first component and second component z together to produce thermal energy; and N means for converting (230) the thermal energy to electric energy to be = released to the power grid.
S
FI20187132A 2018-09-11 2018-09-11 Energy control method and arrangement FI129211B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI20187132A FI129211B (en) 2018-09-11 2018-09-11 Energy control method and arrangement
US17/275,147 US11873565B2 (en) 2018-09-11 2019-09-06 Energy management method and arrangement
EP19860383.9A EP3850125A4 (en) 2018-09-11 2019-09-06 ENERGY MANAGEMENT METHOD AND ARRANGEMENT
PCT/FI2019/050639 WO2020053478A1 (en) 2018-09-11 2019-09-06 Energy management method and arrangement

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FI129211B true FI129211B (en) 2021-09-30

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