Building Energy Storage Selection for Surplus PV Cost Reduction
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Solution Overview
Problem
In buildings with surplus power generation from PV facilities, balancing energy efficiency and cost efficiency is challenging due to varying power surplus and the need to manage multiple energy storage facilities effectively.
Innovation Solution
A server system manages energy storage facilities by determining which facility to store surplus power based on facility specifications and cost reduction potential, using a processor to calculate the most efficient storage option among multiple energy storage facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple energy storage facilities are installed to store surplus power from PV facilities, then the capacity to store surplus power is improved, but the complexity of managing and selecting the appropriate facility increases
Solution Approach 1:
The system automatically determines which energy storage facility to use by comparing the storage period requirement with the surplus power duration, eliminating the need for manual intervention and simplifying management despite having multiple facilities
Solution Approach 2:
The system uses parameter comparison (storage period vs. surplus power duration) to dynamically select the appropriate energy storage facility, transforming a complex management problem into a simple parameter-based decision process
2Use of energy by stationary object
If energy is stored in energy storage facilities during low-demand periods, then electricity cost is reduced, but energy efficiency may be compromised due to energy loss during storage and retrieval
Solution Approach 1:
The system performs preliminary determination of the appropriate energy storage facility by comparing storage period requirements with expected surplus power duration, ensuring energy is stored in the most suitable facility to minimize losses while achieving cost savings
Solution Approach 2:
The system uses feedback from facility specifications and storage period comparisons to continuously optimize the selection of energy storage facilities, balancing cost reduction with energy efficiency by avoiding unnecessary energy loss
Data Source
AI summary
A server includes a processor which performs a computation process to determine, among a plurality of energy storage facilities, an energy storage facility to store power generated by a natural energy supply to. When the power generated by the natural energy supply is greater than power consumed by a building and surplus power is produced, the processor extracts one or more energy storage facilities, among the plurality of energy storage facilities, whose periods requiring continued energy storage depending on facility specifications are less than a duration during which the surplus power is greater than a predetermined amount. The processor calculates, for each of the one or more energy storage facilities, an amount of reduction of electricity cost if the energy storage facility stores the surplus power, to determine an energy storage facility to store the surplus power to, based on the amount of reduction.