Freely downloadable, USEF delivers all the relevant components required to understand and implement a market for flexibility. This page contains the last updates of our publications. Older publications are still available in our Archive section. Since the release of the Framework we have written a number of whitepapers, articles and brochures as add-ons and enrichments. Most of these have also been published by the National Library of the Netherlands.

USEF: The Framework Explained - Update 2021

Hans de Heer, Marten van der Laan, Aurora Sáez Armenteros

This publication describes the context and thinking behind USEF Download

USEF White Paper: Flexibility Deployment in Europe

Aurora Sáez Armenteros, Hans de Heer, Marten van der Laan

This paper maps the range of current flexibility products, markets and regulations deployed across Europe. Download

Case study: Practical deployment of electric vehicle flexibility

Jedlix and USEF Foundation

This paper explains how smart charging is used in practice to valorize electric vehicle flexibility. Download

USEF Flexibility Trading Protocol Specifications 1.01

The USEF Flex Trading Protocol (UFTP) is a subset of the USEF Framework. Focused specifically on the exchange of flexibility between Aggregators and DSO's. Download

.XSD files USEF Flexibility Trading Protocol

The USEF Flex trading protocol (UFTP) is a subset of the USEF Framework. UFTP can can be used as stand-alone protocol for flexibility forecasting offering, ordering and settlement processes. Visit

Energy & Flexibility Services for Citizens Energy Communities

Elke Klaassen and Marten van der Laan

This paper aims to support the development and harmonization of the CEC role within the energy system. Download

Flexibility Platforms

Hans de Heer and Willem van den Reek.

A detailed introduction to various existing and emerging flexibility platforms. Download

Flexibility Value Stacking

E. Klaassen, M. van der Laan, H. de Heer, A. van der Veen, W. van den Reek

An introduction to the design principles behind the market model. Download

DSO Workstream - Market-based congestion management models

John Hodemaekers, Herman Bontius (USEF)

An assessment of 11 models that existed in 2017 Download

Workstream on Aggregator implementation models

Hans de Heer, Marten van der Laan (USEF)

Now includes Residential segment as well as Commerce & Industrial. Download

USEF The Framework Explained

Outlines our vision and approach to the flexibility market design, with a description of the structure, market roles, tools and rules. Download

USEF: the Privacy and security guideline

Our definition for balancing consumer confidence with security of supply, while complying with new European General Data Protection Regulation. Download