Realizing a human-centered digitalization of the energy sector

The digitalization of the energy sector is in progress, but Europe is about to fall behind. A human-centered design approach ensures that it takes place with, and for the benefit of, people, for which this letter puts forward policy recommendations. People need access to tailored and ready-for-use tools that help the realization of societal co-benefits, bring individual gains, remove human burdens, and ensure just participation of all societal groups. Substantial additional intellectual and financial resources are required for the development of digital tools and products to seize opportunities for citizens to engage, in the energy transition, optimize energy consumption, and manage active participation.


Plain language summary
The digitalization of the energy sector is in progress, but Europe is about to fall behind.It is important that the energy transition takes place with, and for the benefit of, people.We provide policy recommendations in this letter.People need tools that are easy to access, ready-to-use, and are beneficial.It is important to ensure just participation of all societal groups.To achieve this, a large amount of intellectual and financial resources are needed.This allows citizens to engage, lower energy costs, and actively participate.

Disclaimer
The views expressed in this article are those of the authors.Publication in Open Research Europe does not imply endorsement of the European Commission.

Framing a human-centered digitalization of the energy sector
Distinguishing two human-centered perspectives All citizens have a stake in the necessary transformation of the energy system and the digitalization of the energy sector because it affects everybody (Figure 1).In the fundamental changes of decentralizing, decarbonizing, and restructuring the energy sector, citizens should have a say in how the transition progresses and in the way in which policies are designed and implemented.Furthermore, people are affected as customers of the energy market who pay for and demand the provision of reliable and affordable energy services which provide electricity, thermal comfort, lighting, and transportation of people and goods.Increasingly, more and more citizens also become prosumers, producing energy, selling electricity, and offering a range of energy services.This open letter proposes that the way forward in the energy transition is to design a human-centered digitalization of the energy sector.
These pioneer citizens -whether individual or collective prosumers -often engage out of curiosity.However, the majority of people only want to engage in new ways if they are convinced about the value proposition that is offered to them: they seek higher value, more utility, or better comfort (c.f.Giacomin, 2015 for an introduction to human-centered design; Shapira, Ketchie & Nehe, 2017 for connecting design thinking with strategic sustainable development; and Wilson, Hargreaves & Hauxwell-Baldwin, 2015 on review of the prospects of smart homes from a user perspective).Only with such clear offers will they actively take part in and accept revisions of the way energy services are delivered in the future.Thereby, the means to realize the offered value is of less importance; it is the mobility service itself that matters and not the possession of a car per se.
The distinction between the two human-centered perspectives has to be systematic, since their needs do not necessarily overlap.In other words, the means to engage people also differ.This is important to stress because digitalization of the energy sector only unfolds its full transformative potential if energy services are user-tailored, and citizens can truly engage in the transformation.True for both perspectives, however, is the fact that humans dislike change in general.Therefore, any approach to a human-centered transition requires answering "Why does it matter for me?".The answers have to be provided through an evidence-based theory of change; in other words, solutions that link to a portfolio of low-entry practice changes that offer benefit.The road to engagement must accommodate for the speed and depth of the transformation as it is perceived by both perspectives.
To best realize a transition whose tools and services benefit people, the transformation of the energy system and the digitalization of the energy sector need to incorporate a human-centered design.To establish a practice of change, the involvement of both citizen-perspectives in all four human-centered design stages (1) is necessary.The inclusion of energy market customers and citizens only at the end of a feedback process falls short in two ways.First, the evaluation is likely without impact if the linear process is not moved into a revision cycle.Second, not involving users of tools and services from an early stage onward in a co-design process will cause inefficiencies.More time and resources will be needed to understand context, elicit requirements, develop value propositions, and design, build, and evaluate prototypes.Only by meeting people's needs will citizens benefit from the change, accept transition processes, and actively participate as prosumers and informed citizens.

Actively engaging people
Behavioral theories have shown that needs-based knowledge about the energy system and how it functions is a precursor to the enabling of entry-points in order for citizens to actively engage and inform themselves (c.f.Huffman, 2009;Markard, 2018;Renn et al., 2020).People who become prosumers in energy markets will understand to a deeper degree how the transition affects them and their lives.People who engage collectively in energy communities are able to break down the complexity of the energy transition, being equipped to propose and implement local solutions.A recently finalized inventory on collective citizen-led action in the energy transition for each country in Europe provides ample evidence for the local solutions found by over 10,000 initiatives across Europe with more than 16,000 energy projects to install renewable capacities, promote energy saving, and low carbon mobility (Wierling et al., 2022).It emphasizes that creativity of solutions grows with the number of people involved.
Actively engaging people stabilizes democracy and connects people with local administration, policy institutions, and businesses.Citizen engagement depends on transparent and prompt access to reliable information and access to planning and decision-making systems (Haf & Robison, 2020;Vieira Fernandes & Santos Silva, 2022).A human-centered digitalization is -as a first step -one that prepares the ground for people to take part in change processes.In a second step, the full-fledged digitalization of the entire energy system supports human decision and control by regulators, energy businesses, and end-users alike.With the second step, autonomous machine agents act in service of humans, supporting the monitoring and steering of dataflows and data-driven appliances for managing the energy system infrastructure.

Designing tools that meet peoples' needs
People need access to tailored, user-friendly, and ready-for-use tools that come with a low entry barrier (Wilson et al., 2015).Needs-based tools not only help in the realization of societal co-benefits, but also bring individual gains.Knowledge tools raise awareness of an environmentally friendly energy transition and empower people in general, but tailored, they incentivize energy and resource saving behavior and thereby lower energy costs.Digital tools can bridge the gap between professionals and laypersons, allowing average citizens to engage and even compete with incumbents of the energy market.
Two broad categories of digital tools include 1) tools to seize opportunities and prospective benefits for citizens to engage, and 2) tools to optimize (private or collective) energy consumption (Klass & Wilson, 2016) and manage active participation in the energy markets.Tools can be further separated by technical, legal, and informational grounds.Examples for technical circumstance tools are localized solar cataster and wind power maps.They help to choose the most beneficial technology option to install in a home or community.Legal requirement tools inform on available support schemes such as retrofitting opportunities.They also provide information on how collective engagement is possible, for example how the EU directives related to energy communities are implemented in different places.User-specific information portals could contain tools that inform about policy-steered transition processes, enable scenario exploration by the users and allow observation of whether or not policy implementation is locally on track.Tools within the second category of optimization and management allow for an increase of competition in energy markets so that their liberalization benefits the people.Such tools could permit switching providers to lower cost or the ability to choose preferred fuels and also include tools to plan, monitor, and control local energy grids established by energy communities.These tools are only attainable with the right policies in place that encourage participation, set the framework, and promote businesses to develop the necessary tools.

Setting up machines to serve people
Digitalization of society and the energy sector in particular is an ongoing process and must be steered into the desired direction and aligned with the needs of people.Besides helping society to cope with transition challenges, digitalization allows society to harvest values that lie in growing data and interconnectivity.Digitalization also allows for the transparent display of complex transition processes, empowering people to make informed choices.
A human-centered digitalization rests on machine-actionability and interoperability between energy system actors and components.This can be achieved by ubiquitous implementation of the FAIR (findability, accessibility, interoperability, and reusability) data guiding principles (Wilkinson et al., 2016), which ensure findability, accessibility, interoperability and reusability of data and information in general.The concept of open (or shared) data adds a layer which is intrinsically linked to transparency.By complementing proprietary data with novel forms of open data, new possibilities for collaboration among different agents are created.For example, if different agents in a supply chain are linked through FAIR and shared data, then resource efficiency envisioned by the circular economy can be fostered.Or digital energy community networks can more easily transfer best practices and lessons learned.
An important precondition for being able to develop the necessary digital tools is a common data language that delivers seamless and automated communication between humans and machines (Figure 2).Digitalization acts as an enabler driven by data, analytics, and connectivity between data, devices, and users.This is why all stakeholders of the digital transformation need to speak and interpret a common data language.Moreover, machines need to be in the position to understand the language humans speak (refer to Box 1 for an illustrative example of the common data language challenge).Only then can siloed data, and data with poor provenance and context information, be overcome.This would permit interoperability between all relevant data that digital tools need access to in order to function as envisioned for the low carbon energy transition.

Box 1. Example human-machine communication
A simple, but illustrative example is how to answer "What is 2 kg"?Humans read the question and remember that they have felt what a kilogram feels like, and they know from school what the unit means.Using the standard set by the gauging office, humans understand that 2 kg is twice as much as the normed unit.Machines, on the other end, are able to interpret statements through parsing and resolving of links between semantic fragments, bringing meaning.For all parsed elements, machines need definitions they can access from persistent websites.Today, this translation for machines still requires substantial human labor and engagement.It is by no means offering a value proposition that is attractive to engage in, neither for energy services customers nor for citizens in general, as well as researchers and businesses.

Policies to pave the way for a human-centered digitalization
The development of human-centered digital tools, as well as the implementation of interoperability and machine-actionability of data and devices, requires substantial additional intellectual and financial resources.It is outside the scope of being accomplished in addition to the current daily tasks of policy makers, planners, businesses, academics, and most importantly, citizens.Paving the way for human-centered digitalization requires governmental support for the development of tools and products that make machine-actionability possible and that facilitate a human-centered digitalization.business models.Furthermore, data services and software that help to implement FAIR data guiding principles with a focus on machine-actionability should be prioritized.The key is to enable interoperability of personal, public, governmental, private sector, and research data.This can be facilitated through standard setting and the introduction of labels for FAIR metrics, leading the development of machine-actionable vocabularies, and supporting the niche markets for FAIR data services.Last, but not least, the European Commission needs to realize the tremendous effort that is needed for universal, machine-actionable implementation of the FAIR data guiding principles.This requires new educational programs, institutional capacity building, and the promotion of new job profiles, such as domain-specific data stewards.
The list of policy recommendations in Table 2 addresses tools and products that facilitate human-centered digitalization.These include low-entry barrier tools and apps, one-stop platforms, solutions that support the functioning of energy services markets (and energy data markets), apps and tools that help in the development of new products as well as evaluation software.A central target for the European Commission should thereby be the support of energy communities and co-design principles.Energy communities have proven to be sources of social innovation (c.f., Horizon 2020 Project COMETS, 2019-2022); they successfully experiment with yet-immature technologies, and they take the role of early adopters, for example in driving wind energy development in Denmark.Moreover, they are close to the target groups for a human-centered digitalization.Support from the European Commission is needed for setting and reinforcing standards for data security and privacy, and rules for interaction in energy services and energy data markets.It starts with communicating and raising awareness of the fact that data are assets, and they should therefore be protected and stay in control of the individual.It continues with funding low-entry barrier documentation and communication of how to use the services to close the digital divide.Finally, it also includes market regulations, for example the introduction of labels for safe data standards similar to energy efficiency labeling of home devices.In summary, policy support is needed along the entire services supply chain and across stakeholder Table 2. Tools and products that facilitate human-centered digitalization.Along with policy recommendations and call for action.

Digital products & tools Policy role: from encouragement to prioritization to command-and-control
Low-entry barrier tools and apps for citizens and energy service customers (one-stop dashboard, personal data center, multifunctional tools), data hubs with machine-powered tailored analytics, open-source software for electricity trade is needed by energy communities, cost saving scenario explorer.
Support energy communities which accumulated relevant techno-digital knowledge and who are connected to diverse groups of citizens (e.g., encouraging outreach, education, and training activities; developing tools and apps tailored to the needs); setting and reinforcing standards for data security and privacy; create awareness that data are assets and should be protected and stay in control of the individual.
One-stop platforms with easy access to energy planning tools for all stakeholders (e.g., energy atlas, solar photovoltaic system video instructions).
Support platforms, best-practice forums, energy data stewards; fund low entry-barrier documentation and communication of how to use the services; prioritize citizens with low digital competences to overcome digital divide.
Tools that facilitate the functioning of energy services markets (e.g., tools for interoperability of energy data and services, apps to determine value in data products, multi-actor communication).
Support consortia to develop these (along services supply chains, across stakeholder groups), consider certificates/labeling for market participants (e.g., data hygienic standards, compliance with ISO 9241-210:2019); set standards for user-centric businesses and governance.
Tools that facilitate human-centered digital services development (e.g., autonomously screening for relevant legislation and standards when developing new services; tools that allow for the evaluation of monitoring and transparency of transformation processes).
Support consortia to develop these (along services supply chains, across stakeholder groups).
Tools for holistic human-centered evaluation (e.g., that help to incorporate customer-centric and citizen-centric perspectives through integrated evaluation; apps, software, platforms to collect feedback that evaluate the usability of services).
Support the systematic elicitation of feedback, trade-offs, and synergies between the perspectives.
groups.Concerted effort is fundamental to steer and bring about a human-centered digitalization and to establish functioning energy services and data markets.Only then is Europe able to keep up with and compete in the global context.

Siyu Ren
Nankai University, Tianjin, Tianjin, China The manuscript needs improve the quality of the introduction section, because the author should tell us why you need to analyze the problem and what is the relationship of the factors you mentioned, and which is very important to us. 1.
The major defect of this study is the debate or argument is not clear stated.Hence, I would suggest the author to enhance your theoretical discussion and arrives your debate or argument. 2.
I noticed that the novelty of this paper is not described in detail.The author needs to elaborate on the importance of this research topic.

3.
A summary of the research gaps in the existing literature allows the reader to understand the differences in the Review.

4.
Is the rationale for the Open Letter provided in sufficient detail?(Please consider whether existing challenges in the field are outlined clearly and whether the purpose of the letter is explained) Yes

Does the article adequately reference differing views and opinions? Yes
Are all factual statements correct, and are statements and arguments made adequately supported by citations?Yes Is the Open Letter written in accessible language?(Please consider whether all subjectspecific terms, concepts and abbreviations are explained)

Nicolò Rossetto
European University Institute, Fiesole, Toscana, Italy The open letter addresses an important topic, how to ensure digitalisation of energy answers the needs of people and can support societal development.
However, the letter is quite abstract and fails to provide a paragraph setting adequately the scene, in particular from a policy point of view, and a paragraph introducing/anticipating the main elements of the reasoning/the structure of the letter itself.On top of that, the letter mentions a lot of items, including several policy recommendations, but is less clear in providing the framework supporting/justifying those items/recommendations.
As a result, it is not easy for a person to fully evaluate the contribution and take full advantage of it.Reviewer Expertise: Energy economics, energy regulation, electricity markets and grids.

Is the rationale for the
I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.
Rafael Mayo-Garcia Departmento de Tecnología, CIEMAT, Madrid, Spain The letter puts forward policy recommendations in order to properly tackle a human-centered design approach that will ensure that it takes place with, and for the benefit of, people, in Europe.
It clearly addresses a topic of much interest from a proper perspective and is of utmost importance if the region wants to avoid a digital gap that will leave some citizens outside of the digitalisation of the energy sector.
The elaboration of the arguments is quite clear and the proposed policies of interest.I recommend stakeholders take them into account.
The digitalization of the energy sector encompasses more topics than data curation under FAIR principles.In this sense, the letter is coherent and valid as it is, but the title should be more specific about the content reading below.
The letter opens the door to new contributions targeting other activities related to the digitalization of the energy sector and how it can be achieved such as simulation, AI, cybersecurity, traceability, etc.
Is the rationale for the Open Letter provided in sufficient detail?(Please consider whether existing challenges in the field are outlined clearly and whether the purpose of the letter is explained) Partly

Does the article adequately reference differing views and opinions? Yes
Are all factual statements correct, and are statements and arguments made adequately supported by citations?Yes Is the Open Letter written in accessible language?(Please consider whether all subjectspecific terms, concepts and abbreviations are explained) Yes Where applicable, are recommendations and next steps explained clearly for others to follow?(Please consider whether others in the research community would be able to implement guidelines or recommendations and/or constructively engage in the debate) Yes Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Energy; digitalization I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard.

Figure 1 .
Figure 1.Two human-centered perspectives.Humans as customers of energy markets and humans as citizens who have a democratic stake in transition processes.
Table1presents an overview of digital products and tools for machine-actionability, including recommendations on how policies could support the process.The focus is best placed on the development of open-source software and technology, promoted through open-source pools for energy generation and monitoring technologies that help citizens and energy communities to actively engage in the energy transition.The role of the European Commission therein can range from encouragement to prioritization, and to command-and-control measures.For example, to foster standards for open data, support markets for open technologies, enforce open metadata, and to fund experimentation with open data (shared data) based
Open Letter provided in sufficient detail?(Please consider whether existing challenges in the field are outlined clearly and whether the purpose of the letter is explained) Partly Does the article adequately reference differing views and opinions?Partly Are all factual statements correct, and are statements and arguments made adequately supported by citations?Partly Is the Open Letter written in accessible language?(Please consider whether all subjectspecific terms, concepts and abbreviations are explained) Partly Where applicable, are recommendations and next steps explained clearly for others to follow?(Please consider whether others in the research community would be able to implement guidelines or recommendations and/or constructively engage in the debate) Partly Competing Interests: No competing interests were disclosed.

Table 1 . Tools and products for machine-actionability.
Along with policy recommendations and call for action.

have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.
Reviewer Report 20 June 2023 https://doi.org/10.21956/openreseurope.16367.r31864© 2023 Rossetto N.This is an open access peer review report distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.