V2G REC Accounting for EV Charging and Discharge Transfers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of electric vehicles (EVs) into the grid as distributed energy resources faces challenges in managing renewable energy credits (RECs), particularly in coordinating between energy authorities and ensuring that the clean energy attributes are properly tracked and compensated, leading to inefficiencies and lost incentives.
Innovation Solution
A system and method for automatically tracking and managing RECs, involving a server that receives and transmits discharging information from EVs to energy regulatory authorities, calculates and transfers credits, and facilitates compensation for both the energy value and its clean attributes, ensuring accurate accounting and incentivization of renewable energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If EVs discharge renewable energy to the grid or consumers, then clean energy attributes are transferred, but RECs may be lost due to transaction gaps or collaboration gaps between energy authorities
Solution Approach 1:
The patent introduces a server as an intermediary system that coordinates between EVs, energy transfer stations, and energy regulatory authorities. The server receives discharging information from EVs, transmits it to the authority, receives calculated credit information, and distributes it to recipients, thereby preventing REC loss due to coordination gaps without requiring complex direct interactions between all parties
Solution Approach 2:
The system implements a feedback loop where the server continuously monitors EV discharging activities, tracks REC transfers, and provides real-time credit information to both the regulatory authority and recipients. This feedback mechanism ensures accurate accounting and prevents REC loss by maintaining continuous visibility of the entire transaction chain
2Measurement precision
If a centralized system tracks and manages RECs across multiple parties, then REC accuracy and transparency improve, but system complexity and coordination requirements increase
Solution Approach 1:
The server acts as a centralized intermediary that consolidates REC tracking functions. It receives standardized discharging information from EVs, performs centralized calculation of credit amounts, and distributes credit information to appropriate recipients. This centralized approach ensures measurement precision while managing complexity by providing a single point of coordination rather than requiring complex peer-to-peer coordination between all parties
Solution Approach 2:
The server performs multiple functions within a single system: receiving discharging information from EVs, transmitting data to the regulatory authority, calculating credit amounts, distributing credit information to recipients, and maintaining tracking records. This multi-functional design achieves comprehensive REC tracking accuracy while avoiding the need for separate specialized systems for each function
Data Source
AI summary
Systems and methods for tracking and managing the transfer of renewable energy and credits associated with the renewable energy are disclosed, particularly in the context of a V2G framework. A server may receive information about an electric vehicle's charging and discharging states. When the electric vehicle is known to have obtained a charge from a renewable source, the transfer of any energy associated with that charge to a recipient may also trigger the transfer of renewable energy credits (RECs) to the recipient. The server maintains an accounting of the movement of RECs, and may also facilitate compensation to electric vehicle owners for their return of clean energy to a third party.