Energy Signal Disaggregation for Installation-Specific Certification
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Solution Overview
Problem
Existing energy systems lack the capability to accurately determine the origin of energy generated by individual installations, such as photovoltaic systems, within a grid-connected environment, leading to inefficiencies and increased costs in local energy markets.
Innovation Solution
A method and system that capture temporal measured signals from energy installations, transmit these signals to an external test unit for disaggregation, and issue certificates for installation-specific energy amounts, allowing for precise tracking and verification of energy generation or consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a separate measuring device is installed for each energy installation to determine individual energy generation, then measurement precision is improved, but device complexity and costs increase significantly
Solution Approach 1:
The patent segments the measurement task by separating the measurement function from the evaluation function. The measurement is performed centrally at the grid connection point, while the disaggregation and origin determination are performed separately through signal analysis, eliminating the need for multiple physical measuring devices at each installation.
Solution Approach 2:
The patent introduces an intermediary approach by using accumulated measured signals from the grid connection point as a mediator between the multiple energy installations and the central evaluation system. This intermediary signal contains information from all installations and enables subsequent disaggregation without requiring direct measurement at each source.
2Device complexity
If accumulated measured signals are used at the grid connection point, then device complexity is reduced, but the ability to determine individual installation energy generation is lost
Solution Approach 1:
The patent applies preliminary action by capturing and accumulating the measured signals at the grid connection point before any disaggregation takes place. This preliminary measurement captures all necessary information in a consolidated form that can later be separated into individual installation contributions through signal analysis.
Solution Approach 2:
The patent replaces the mechanical approach of using multiple physical measuring devices with a signal processing approach. Instead of mechanically separating measurements at the source, the system uses mathematical disaggregation methods to separate the contributions from the accumulated signal, substituting physical complexity with computational analysis.
3Reliability
If renewable energy certificates are used for energy trading, then energy origin verification is attempted, but exact origin proof and local energy market suitability are compromised
Solution Approach 1:
The patent implements feedback by continuously monitoring the accumulated measured signals and using disaggregation results to provide installation-specific energy generation data. This feedback loop enables verification of energy origin by comparing disaggregated results with expected generation patterns, providing reliable validation without requiring separate meters at each installation.
Data Source
AI summary
Various embodiments include a method for certifying at least one installation-specific amount of energy, wherein the installation-specific amount of energy has been generated or consumed by an energy installation of an energy system. The method may include: capturing a temporal measured signal accumulated in relation to the energy system of a measured variable associated with the amount of energy; transmitting the captured signal to a test unit external to the energy system; disaggregating the transmitted signal using the test unit, and ascertaining the installation-specific amount of energy by way of the disaggregation; issuing a certificate regarding the ascertained installation-specific amount of energy; and receiving the issued certificate at the energy system.