Methods and systems for energy storage dispatch
A method of energy dispatch for an energy storage device component of a local energy generation plant, the method including obtaining a charge/discharge profile for the energy storage device, quantifying an amount of energy generation available from energy source components of the local energy generation plant, accessing a degradation factor for the energy storage device, forecasting a future cost for storing energy in the energy storage device, evaluating the future cost, providing instruction to an energy storage plant control unit to increase energy storage in the energy storage device based on a result of the evaluation, else, instructing the energy storage plant control unit to decrease energy storage in the energy storage device, and shedding power from the energy source components if a recommendation to shed power was provided. A system for implementing the method and a non-transitory computer-readable medium are also disclosed.
1. A system to control energy dispatch for an energy storage device, the system comprising:
a local energy generation plant, the local energy generation plant including:
the energy storage device, a plurality of energy sources, an energy load block, an energy storage dispatch optimization unit, an energy storage plant control unit, and at least one nested energy generation plant; and
a single feeder line electrically connecting the energy storage device, the plurality of energy sources, the energy load block, the energy storage dispatch optimization unit, the energy storage plant control unit, and the at least one nest energy generation plant, the single feeder line configured to source, sink, and shed energy from the energy storage device, the plurality of energy sources, and the at least one nested energy generation plant;
the energy storage dispatch optimization unit including a processor in communication with a data store;
the data store including executable instructions that when executed by the processor cause the processor to perform a method, the method including:
obtaining a charge/discharge profile for the energy storage device;
quantifying an amount of energy generation available from the plurality of energy sources and the at least one nested energy generation plant of the local energy generation plant;
assessing a degradation factor for the energy storage device;
forecasting a future cost for storing energy in the energy storage device based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources or the at least one nested energy generation plant, and the degradation factor;
establishing, based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources or the at least one nested energy generation plant, the degradation factor, and the forecasted future cost, that the energy storage device should be discharged instead of charged;
determining, subsequent to establishing that the energy storage device should be discharged, whether i) to source energy from at least one of the energy storage device or the at least one nested energy generation plant, or ii) to shed power from the energy storage device and the plurality of energy sources or the at least one nested energy generation plant; and
based on the determination:
i) transmitting a first instruction to the energy storage plant control unit that causes the energy storage plant control unit to configure the singe feeder line to source energy from the energy storage device to one or more load components of the local energy generation plant; or
ii) transmitting a second instruction to the energy storage plant control unit that causes the energy storage plant control unit to configure the single feeder line to shed power from the energy storage device and at least one of the plurality of energy sources or the at least one nested energy generation plant.
2. The system of claim 1 , the executable instructions causing the processor to obtain the charge/discharge profile by accessing profile records in the data store or developing the charge/discharge profile from one or more parameters for the local energy generation plant, the plurality of energy sources and the one or more load components of the local energy generation plant, the energy storage device, environmental conditions, and electricity distribution market.
3. The system of claim 1 , the executable instructions causing the processor to perform the method by including in the degradation factor a number of charge/discharge cycles, a current energy storage level of the energy storage device, and a manufacturer life specification for the energy storage device.
4. The system of claim 1 , the executable instructions causing the processor to forecast the future cost by applying the degradation factor to operational conditions of the energy storage device to provide information on monetary cost for storing the energy.
5. The system of claim 1 , the executable instructions causing the processor to perform the method by controlling the energy storage plant control unit to configure a switch network in response to instructions to increase or decrease the energy storage.
6. The system of claim 1 , the executable instructions causing the processor to perform the method by including in the quantifying the amount of energy generation an energy requirement of the at least one nested energy generation plant at a lower position in a hierarchy that includes the local energy generation plant and the at least one nested energy generation plant.
7. A method of energy dispatch for an energy storage device component of a local energy generation plant, the method comprising:
obtaining a charge/discharge profile for the energy storage device, the energy storage device electrically connected to a single feeder line of the local energy generation plant;
quantifying an amount of energy generation available from a plurality of energy sources and at least one nested energy generation plant of the local energy generation plant, each of the plurality of energy sources and the at least one nested energy generation plant of the local energy generation plant electrically connected to the single feeder line;
assessing a degradation factor for the energy storage device;
forecasting a future cost for storing energy in the energy storage device based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources or the at least one nested energy generation plant, and the degradation factor;
establishing, based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources or the at least one nested energy generation plant, the degradation factor, and the forecasted future cost, that the energy storage device should be discharged instead of charged;
determining, subsequent to establishing that the energy storage device should be discharged, whether i) to source energy from at least one of the energy storage device or the at least one nested energy generation plant, or ii) to shed power from the energy storage device and at least one of the plurality of energy sources or the at least one nested energy generation plant; and
based on the determination:
i) transmitting a first instruction to an energy storage plant control unit that causes the energy storage plant control unit to configure the single feeder line to source energy from the energy storage device to one or more load components of the local energy generation plant; or
ii) transmitting a second instruction to the energy storage plant control unit that causes the energy storage plant control unit to configure the single feeder line to shed power from the energy storage device and at least one of the plurality of energy sources or the at least one nested energy generation plant.
8. The method of claim 7 , obtaining the charge/discharge profile by accessing profile records in a data store or developing the charge/discharge profile from one or more parameters for the local energy generation plant, the plurality of energy sources and the one or more load components of the local energy generation plant, the energy storage device, environmental conditions, and electricity distribution market.
9. The method of claim 7 , the degradation factor including a number of charge/discharge cycles of the energy storage device, a current energy storage level of the energy storage device, and a manufacturer life specification for the energy storage device.
10. The method of claim 7 , forecasting the future cost including applying the degradation factor to operational conditions of the energy storage device to provide information on monetary cost for storing the energy.
11. The method of claim 7 , the energy storage plant control unit configuring a switch network in response to instructions to increase or decrease the energy storage.
12. The method of claim 7 , including in the quantifying the amount of energy generation an energy requirement of the at least one nested energy generation plant at a lower position in a hierarchy that includes the local energy generation plant and the at least one nested energy generation plant.
13. A non-transitory computer-readable medium having stored thereon instructions which when executed by a processor cause the processor to perform a method of energy dispatch for an energy storage device component of a local energy generation plant, the method comprising:
obtaining a charge/discharge profile for the energy storage device, the energy storage device electrically connected to a single feeder line of the local energy generation plant;
quantifying an amount of energy generation available from a plurality of energy sources and at least one nested energy generation plant of the local energy generation plant, each of the plurality of energy sources and the at least one nested energy generation plant of the local energy generation plant electrically connected to the single feeder line;
assessing a degradation factor for the energy storage device;
forecasting a future cost for storing energy in the energy storage device based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources and the at least one nested energy generation plant, and the degradation factor;
establishing, based on the charge/discharge profile, the amount of energy generation available from at least one of the plurality of energy sources or the at least one nested energy generation plant, the degradation factor, and the forecasted future cost, that the energy storage device should be discharged instead of charged;
determining, subsequent to establishing that the energy storage device should be discharged, whether i) to source energy from at least one of the energy storage device or the at least one nested energy generation plant, or ii) to shed power from the energy storage device and at least one of the plurality of energy sources or the at least one nested energy generation plant; and
based on the determination:
i) transmitting a first instruction to an energy storage plant control unit that causes the energy storage plant control unit to configure the single feeder line to source energy from the energy storage device to one or more load components of the local energy generation plant; or
ii) transmitting a second instruction to the energy storage plant control unit that causes the energy storage plant control unit to configure the single feeder line to shed power from the energy storage device and at least one of the plurality of energy sources or the at least one nested energy generation plant.
14. The medium of claim 13 , the executable instructions causing the processor to obtain the charge/discharge profile by accessing profile records in a data store or developing the charge/discharge profile from one or more parameters for the local energy generation plant, the plurality of energy sources and the one or more load components of the local energy generation plant, the energy storage device, environmental conditions, and electricity distribution market.
15. The medium of claim 13 , the executable instructions causing the processor to perform the method by including in the degradation factor a number of charge/discharge cycles of the energy storage device, a current energy storage level of the energy storage device, and a manufacturer life specification for the energy storage device.
16. The medium of claim 13 , the executable instructions causing the processor to forecast the future cost by applying the degradation factor to operational conditions of the energy storage device to provide information on monetary cost for storing the energy.
17. The medium of claim 13 , the executable instructions causing the processor to perform the method by controlling the energy storage plant control unit to configure a switch network in response to instructions to increase or decrease the energy storage.
18. The medium of claim 13 , the executable instructions causing the processor to perform the method by including in the quantifying the amount of energy generation an energy requirement of the at least one nested energy generation plant at a lower position in a hierarchy that includes the local energy generation plant and the at least one nested energy generation plant.