Electric Rate Planning With Facility Operation for Cost Stability

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Solution Overview

Problem

Consumers and retail electricity utilities face challenges in stabilizing energy costs due to unpredictable electric rate fluctuations, hindering efficient operation and decarbonization efforts.

Innovation Solution

An electric rate planning system involving an energy service provider server, retail electricity utility server, and consumer server, which collaboratively prepare and approve energy facility and electric power rate plans to optimize energy facility operation, using an electric rate planning apparatus for coupled calculations to minimize energy costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If market-linked electric rate is adopted, then retail electricity utilities can respond to market fluctuations, but procurement risk increases due to spot price volatility

Engineering Contradiction:
Improveresponse to market fluctuationsVSAvoidprocurement risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary calculations of energy facility plans and electric power rate plans before the actual procurement period. By pre-determining optimal facility configurations and rate structures based on forecasted market conditions, the utility can lock in favorable terms and avoid the volatility risks of spot market procurement while maintaining adaptability to market trends.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces an energy management platform as an intermediary between the retail electricity utility and the spot market. This platform acts as a mediator that processes market information, performs optimization calculations, and generates procurement strategies, thereby reducing the direct exposure to spot price volatility while maintaining market-linked adaptability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If energy facilities are introduced for decarbonization, then carbon neutral goals can be achieved, but energy costs increase

Engineering Contradiction:
Improvedecarbonization capabilityVSAvoidenergy cost
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system optimizes the operational parameters of energy facilities (such as charging/discharging schedules for storage batteries, power generation timing for solar panels) to minimize energy costs while achieving decarbonization goals. By dynamically adjusting operational parameters based on market rates and facility plans, the system reduces the cost penalty associated with decarbonization investments.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system performs preliminary planning of energy facility operations to pre-arrange cost-effective decarbonization strategies. By calculating optimal facility plans in advance based on forecasted market conditions and facility characteristics, the system can identify cost-saving opportunities before actual operation, thereby reducing the overall energy cost burden of decarbonization.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If consumers cannot grasp electric rate variation in advance, then market flexibility is maintained, but efficient operation planning becomes difficult

Engineering Contradiction:
Improvemarket flexibilityVSAvoidoperation planning
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system provides feedback to consumers about forecasted electric rate variations and optimized operation plans. By delivering information about upcoming rate changes and recommended operational adjustments, the system enables consumers to plan their energy facility operations efficiently while still maintaining the flexibility to respond to actual market conditions when they occur.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations and provides advance information about electric rate variations and optimal operation plans. By giving consumers foreknowledge of market trends and pre-calculated optimization strategies, the system enables efficient operation planning without removing the ability to adapt to actual market conditions, thus resolving the contradiction between flexibility and planability.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4700689A1Electricity rate planning system and electricity rate planning method
Publication Date: 2026.02.25 HITACHI LTD
  • EP4700689A1 patent drawingFigure 1~2
  • EP4700689A1 patent drawingFigure 3~4
  • EP4700689A1 patent drawingFigure 5

AI summary

An energy service provider server prepares an electric power rate plan and an energy facility plan, sends the electric power rate plan and the energy facility plan to a retail electricity utility server, prepares an energy facility operation plan, and sends the energy facility operation plan to a consumer server. The retail electricity utility server displays the electric power rate plan and the energy facility plan sent from the energy service provider server, approves the electric power rate plan and the energy facility plan, and sends the electric power rate plan and the energy facility plan to the consumer server.