The Beam contributors

The Beam is about sharing knowledge. It’s about making technical information available to everyone. It’s about showing that renewable energy and sustainability are not only interesting topics but that it can also be very accessible.

The Beam
The Beam
Nov 28, 2016 · 17 min read

In each and every edition of The Beam, we give the opportunity to several creative minds and experts to share their interests and expertise with our readers and help us make The Beam a better magazine.

Read our Contributors Guidelines and contact us at to submit your pitch for a story.

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Vivian’s goal is to implement what he has learnt in the business world to the advantage of third world developing countries. He is Board Chair of the Alliance for Rural Electrification, a board member of the Africa Mini-grid Developers Association, and CEO of mini-grid developer RVE.SOL Ltd.

Read Vivian Vendeirinho article: Why ‘mini’ matters to achieve power for all

Analyst at Sustainia

Jack studied Natural Sciences at Cambridge. He has worked in the renewable energy industry, both with hands-on experience installing renewable energy systems and with the British energy regulator. He is now studying for his climate change Master’s degree in Copenhagen and working for the sustainability think tank and consultancy Sustainia.

Read Jack Robinson article: The paintbrush: an unexpected new tool for city planners

Lars Blume
Renewable energy expert for Green Innovation and Development Centre (GreenID)

Lars carries out policy research and develops advocacy campaigns for the leading Vietnamese thinktank in sustainable energy development, GreenID. His mission is to accelerate for a social just energy transition in Vietnam and Southeast Asia. Lars is also the Co-Founder of flowful, a platform to accompany and promote people on their journey beyond sustainability.

Read Lars Blume article: A late start: renewable energy development in Vietnam

Lucia Lenci

As a journalist, environmental communications expert and social media manager, Lucia enjoys giving a voice to social business projects. She loves getting lost in nature, and she is a strong advocate for gender rights and sustainable projects. Passionate traveller, ocean lover and enthusiastic storyteller, she recently joined the ENERGIA team as Communications Officer.

Read Lucia story: Empower Generation: Women are leading the energy revolution in Nepal

Rachel Kyte
CEO of Sustainable Energy for All, and Special Representative of the UN Secretary-General for Sustainable Energy for All

As a leading advocate for sustainable development, Rachel Kyte is focused on affordable, reliable and sustainable energy as the key to combating both poverty and climate change. Rachel Kyte drives SEforAll’s work to mobilize action towards its 2030 goals of ensuring universal access to modern energy services; doubling the global rate of improvement in energy efficiency; and doubling the share of renewable energy in the global energy mix. As Special Representative for the Secretary General she is the point person in the United Nations for action towards the recently agreed Sustainable Development Goal 7 on sustainable energy.

Read Rachel Kyte Editorial: Africa’s bright prospects for 2018

Fid Thompson
Communications and Story Producer, Solar Sister

Fid has over a decade’s experience in journalism, research and visual storytelling on the African continent. Using creative approaches, she manages to amplify and advocate for marginalised voices and has always been committed to apply her skills to further social justice and promote human rights.

Read Fid Thompson article: Putting the Sister in Solar: the movement bringing women out of energy poverty

Mohit Anand
Director of Consulting at TFE Consulting GmbH

Mohit is an expert on business models, new technologies and financing for energy in emerging markets. As a Director at TFE Consulting, he drives projects with international companies, investors, multilateral organizations and governments to accelerate the energy transition taking place globally.

Read Mohit Anand article: Ethiopia: the energy revolution starts at the bazaar

François Sonnet
Solar Energy Blockchain Advisor, ElectriCChain & Solcrypto

François is an expert in renewable energy business development. He co-founded SunSwitch SA in Belgium in 2007 at a time of little focus for renewables outside of Germany. François currently works as a solar consultant on projects in Eastern Europe and advises Solcrypto on developing blockchain tools to initiate the clean energy transition.

Read François Sonnet article: What else other than Bitcoin can a Blockchain do? Think solar energy.

Stefan Zelazny
Chief Innovation Officer, Mobisol

With Mobisol, Stefan is responsible for the company’s innovation strategy and IT agenda. Previous to that role, Stefan obtained a Master of Law from Humboldt-University Berlin and spent 15 years working as a software developer and five more years leading software development for various Berlin internet startups.

Read Stefan Zelazny article: In Africa, rural electrification is driven by technology and crowd investments

Xenia Wassenbergh
Independent copywriter and trainer

Xenia is passionate about crafting stories and communicating about development and development related issues. She produces the content for a Hivos magazine distributed to donors in the Netherlands, showing the impact of the organisation’s projects and programmes, including on energy and the gender and energy nexus.

Read Xenia Wassenbergh article: The sustainable power of women

Tim Pfefferle
Consultant, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)

Tim is a graduate of the Global Governance and Diplomacy program at Oxford University, where he wrote his dissertation on fossil fuel divestment. Tim has worked on renewable energy policy in Germany and Brazil, and is a consultant on renewable energy and climate, writer and editor.

Read Tim Pfefferle article: Why 2018 is the year that divestment is finally going mainstream

Tjarda Muller
Communications Coordinator, ENERGIA

Four years ago Tjarda joined ENERGIA and has since become really passionate about the relation between energy access and gender. An experienced communicator, she gets great satisfaction out of showing what a difference it can make for a woman to have access to clean energy and the importance to take that into account in energy policies and programmes.

Read Tjarda Muller article: The sustainable power of women

Christian Breyer
Professor for Solar Economy at the Lappeenranta University of Technology, Finland

Christian is one of the co-founders of the DESERTEC Foundation, engaged in the Photovoltaic Power Systems Programme of the International Energy Agency and Chairman for Renewable Energy of the Energy Watch Group. Breyer has published approximately 60 scientific articles and five books as author, co-editor and contributor.

Read Christian Breyer article: 100% renewable electricity worldwide is a new cost-effective reality

Melissa Ruggles
Independent communications consultant

Melissa is a freelance writer who covers a range of topics from business, finance, education, health, fashion, politics, and international development. Melissa works with ENERGIA and Hivos on a regular basis, showing the impact of the organisations’ projects and programmes, including on energy and the gender and energy nexus.

Read Melissa Ruggles article: The sustainable power of women

Nathan Bonnisseau
Head of Content,

As his previous experiences in community reporting, fundraising and education shows, Nathan has always been dedicated to building bridges between the ideas and making social action more efficient and impactful. After Latin America and France, he moved to Berlin and now works for, the first donation platform in the fight against climate change.

Read Nathan Bonnisseau article:

Ala Kazlova
Co-Founder of InnoVentum

Originally from Belarus, Ala studied in Sweden and stayed in the country to start and grow InnoVentum, a cleantech company that has already received a number of awards and prizes for its innovative product portfolio. An avid traveler, Ala is also a fan of renewable energy and a great admirer of innovations that make our life greener and more beautiful.

Read Ala Kaslova article: Design thinking: Making sustainability irresistible

Daniel Kammen
Director, Renewable and Appropriate Energy Laboratory (RAEL), University of California

Daniel has founded or is on the board of over 10 companies, and has served the State of California and US federal government in expert and advisory capacities. Founding director of the RAEL, Daniel has also contributed to various reports of the Intergovernmental Panel on Climate Change since 1999 and has authored or co-authored 12 books.

Read Daniel Kammen article: A battery of choices

Erez Galonska
Founder and CEO, Infarm

A self-educated farmer and entrepreneur, Erez has been travelling the world since 2007 to pursue his passion for agriculture and design by researching innovative solutions for growing food in today’s modern urban environment. As CEO of Infarm, he is now setting the overall company strategy and product direction.

Read Erez Galonska article: Growing without farming

Matthias Stettler
Chairman & Founder, greenmatch AG

As founder of the a leading financial modelling platform for renewables, Matthias is in charge of greenmatch’s vision, strategy, investors, and partnerships, and advises investors, project developers, and banks on financing renewable energy projects. With Sustainable finance team GmbH, he is consulting companies about corporate finance and strategy.

Read Matthias Stettler article:

Martin Baart
Co-founder and CEO, ecoligo

Martin has been of Vice President Engineering for OneShore, Business Development Manager for Microgrids at ABB, and Key Account Manager for Europe with the Australia-based Powercorp Pty. Ltd. He recently cofounded ecoligo to encourage the development of distributed solar projects in emerging markets.

Read Martin Baart article: The missing middle: supplying sub-Saharan Africa’s commercial and industrial sector with solar energy

Noah Kittner
NSF Graduate Research Fellow in the Energy and Resources Group (ERG), University of California, Berkeley.

After graduating with a BS in Environmental Science, Noah worked on researching technical and policy aspects of solar electricity and sustainability assessment in Thailand. He has also installed solar panels in Mexico and conducted research with the Uganda Forestry Resources and Institutions Center at Makerere University.

Read Noah Kittner article: A battery of choices

Christoph Auch
Professional Education Lead, Climate-KIC

Christoph Auch has developed several education programmes for PhD students and postgraduate professionals with the main objective to foster innovation and entrepreneurship competencies, especially related to climate change. In his role, he has worked closely with businesses, start-ups, academia and policy makers especially at regional and city level.

Journalist, CleanTechnica

For the past several years Michael Barnard has been analysing and publishing reports and articles on decarbonisation technologies, business models and policies. Third-party articles on his analyses, and interviews with Mike have been published in dozens of news sites globally and have reached #1 on Reddit Science. He also has published a climate-fiction novel, Guangzhou Future Tense.

CEO, Renewables Grid Initiative

Named one of Tällberg’s 2015 five Global Leaders for her commitment to a sustainable energy future and combating climate change, Antonella Battaglini is the Chief Executive Officer of Renewables Grid Initiative. She is also one of the expert members of the Global Agenda Council on the Future of Electricity of the World Economic Forum (WEF) and a senior scientist at the Potsdam Institute for Climate Impact Research.

Read Antonella Battaglini opinion piece: Why do we need grids today to further grow renewables?

Founder, GreenIT

Frédéric Bordage has worked as a developer, a technical director, a consultant, and a journalist. He now advises companies, communities and institutions in the fields of responsible digital, green IT, and eco-design of digital services. In 2004, Frédéric created to share his expertise and enable the community to come together.

Read Frédéric Bordage opinion piece: For a sustainable design of digital services

Director of communications, Power For All (Power for All)

William Brent is the Director of communications at Power For All, promoting the campaign all over the world. One of “The Top 100 People Shaping Cleantech on Twitter”, he is a recognized leader at the intersection of distributed renewable energy and integrated marketing and communications. William was also a foreign correspondent and editor for many years, and still contributes regularly to leading media outlets.

Read William Brent opinion pieces:

Dr. Sam Duby

Sam Duby is based in Cape Town and is Africa Director at TFE Consulting GmbH. TFE works with private companies, investors, donors and national governments to catalyse the energy transition and bring affordable, clean energy to all. Sam co-founded the Ashden Gold Award winning SteamaCo Ltd in Kenya and is an active member of the Energizer network.

Read Sam Duby opinion pieces:

Editor in Chief, Clean Energy Wire

Sven Egenter heads the Clean Energy Wire (CLEW) as Editor in Chief and Executive Director. He worked at Reuters for 12 years, running the team covering the British economy as Chief Economics Correspondent, UK and managed Reuters’ editorial operation in Switzerland as Acting Bureau Chief in 2010.

Managing Director and Founder, TFE Consulting GmbH (TFE Consulting)

Tobias is an entrepreneur and advisor with experience in organizational change and growth-oriented business models. He has founded Bridge To India, India Goes Solar, and a project development company focusing on distributed energy. Over the years, he has worked for investors, technology companies and governments on managing industry transitions in Asia, Africa and Europe. In 2016, he founded TFE Consulting to provide consulting services on industries that are undergoing rapid transformation.

Read Tobias Engelmeier opinion piece: In Africa, microgrids are changing people’s lives

President, Energy Watch Group
Former member of the German Parliament

Hans-Josef Fell is the President of Energy Watch Group, an independent, non-profit global network of scientists and parliamentarians, which commissions research, independent studies and analyses on global energy developments. Hans-Josef Fell was a member of the German parliament from 1998 to 2013 in the Alliance 90/the Greens group. He is the co-author of the German Renewable Energy Sources Act 2000.

Read Hans-Josef Fell opinion pieces:

Researcher, Institute for Sustainable Energy Policies

Shota Furuya is a researcher at the Institute for Sustainable Energy Policies (ISEP). Shota is working on research and advocacy in order to realise a sustainable and creative energy society. He has worked on community based renewable energy development in Japan and focusses on the process in which different local stakeholders share a sustainable and creative future vision.

Read Shota Furuya opinion pieces:

PhD, Freie Universität Berlin and Heinrich-Böll-Foundation scholar

As a doctoral student, Maik is currently finalizing his dissertation about the (il)legitimacy of producing and consuming energy in general, and fossil fuels in particular. To avert catastrophic climate change, he believes there is no other way than to switch to renewables.

Read Maik Günther opinion piece: An introduction to Fossil fuel divestment — what is the current status and does it work?

Professor and Head, Chair History of Architecture and Urban Planning, Delft University of Technology

Carola Hein is Professor and Head, Chair History of Architecture and Urban Planning at Delft University of Technology. Her book publications include The Capital of Europe, Rebuilding Urban Japan after 1945, and Port Cities. Carola Hein currently works on the transmission of planning ideas among port cities and within landscapes of oil.

Read Carola Hein articles:

Founder, Neon Neue Energieökonomik

Dr. Lion Hirth is an energy economist and expert in the economics of wind and solar power, power market modelling, and balancing markets. The new energy landscape requires new ways of analysis and consulting and Lion is providing such services, based on big data and sound economics.

Read Lion Hirth opinion piece: On the economics of wind and solar power

Division of Resource Economics, Humboldt University Berlin

Dr. Phungmayo Horam is a resource economist specialised in the application of economics and legal framework for evaluating policy design and transaction risks in the renewable energy sector and currently provides consulting services for climate mitigation projects in India.

Read Phungmayo Horam opinion piece: Climate change challenges post-U.S. exit from Paris Climate Agreement

In-Sight Publishing

Scott Douglas Jacobsen works for science and human rights, especially women’s and children’s rights. He considers the modern scientific and technological world the foundation for provision of the basics of human life throughout the world and advancement of human rights as the universal movement among peoples everywhere.

Read Scott Jacobsen opinion piece: Women’s empowerment in the sustainability industry

Founder and CEO, See Change Institute

Beth Karlin, Ph.D., is the founder and CEO of See Change Institute, which brings together leading academics to work with government, private, and nonprofit organisations on strategy, implementation, and evaluation of energy efficiency and behaviour change programs. Beth also serves as Research Director at the University of Southern California’s Norman Lear Center, where she studies the impact of entertainment on society.

Read Beth Karlin opinion piece: Behaviour-based energy programs

Justin Lee is a recent economics graduate from Singapore who is interested in how the countries in the Southeast Asian region can develop to meet energy needs in a sustainable manner. He hopes to raise the developments and potential of renewable energy projects in Southeast Asia through The Beam.

Read Justin Lee opinion piece: Southeast Asia’s growing energy needs

Senior Programme Manager for Climate Energy at the World Future Council (World Future Council)

As a Senior Programme Manager for Climate Energy at the World Future Council, Anna Leidreiter carries out policy research and develops advocacy campaigns with the climate energy team. Anna works on enabling policy frameworks for a global energy transition towards 100% renewable energies as well as a transformation of urban areas towards regenerative systems.

Read Anna Leidreiter opinion piece: RE-powering Europe — How renewables can unite the continent?

Director, Community Power Agency and volunteer, Pingala

Tom Nockolds is a director at Community Power Agency. He has played a key coordination role for the Coalition for Community Energy in Australia and is an expert in business models for community energy projects. Tom is also a volunteer with Pingala, a community energy group in Sydney.

Read Tom Nockolds opinion piece: How communities around the world are challenging mainstream energy systems

Climate and Energy Transatlantic Media Fellow, Heinrich-Böll-Stiftung

Passionate about solutions that empower citizens in their fight for energy democracy, Urszula investigates New York’s alternative energy solutions from a technological, socio-economic and legislative perspective. She has written about the energy transition, smart grid developments, and new legal solutions supportive of citizen-owned renewable energy.

Read Urszula Papajak article:

Founder and president, ORIGONE

Jonathan Partouche is the founder and president of ORIGONE, a company specialised in telecommunications, cyber-security, cyber intelligence and high-tech. Jonathan Partouche is a security specialist with experience in external and internal security assessments, penetration testing, vulnerability assessment, gap analysis, risk assessment, threat intelligence, darknet and deepweb investigations.

Journalist and Partner at EV-Volumes

Jose Pontes has been overviewing the sales evolution of plug-ins through the EV Sales blog since 2012, allowing him to gain an expert view on where EVs are right now, and where they are headed in the future. The EV Sales blog has become a go-to source for people interested in electric car sales around the world. Jose is now a partner at EV-Volumes.

Read Jose Pontes opinion pieces:

Senior Associate Clean Energy Finance, World Resources Institute (WRI)

Prior to WRI, Sanjoy managed the New Ventures program that helped environmental enterprises raise capital from impact investors. Sanjoy is also the founder of Regain Paradise, a Singapore based non-profit promoting clean technology innovation in Asia and Africa to serve the needs of the current and future generations in a sustainable manner.

Read Sanjoy Sanyal article:

Secretary General of the Global Wind Energy Council

Steve Sawyer has worked in the energy and environment field since 1978, especially working for Greenpeace International. He is now the Secretary General of the Global Wind Energy Council (GWEC), a global trade association representing the wind industry. GWEC’s mission is to ensure that wind power establishes itself as the answer to today’s energy challenges, providing substantial environmental and economic benefits.

Editor-In-Chief, Cleantechnica

As director and chief editor of Cleantechnica, Zach is “trying to help society help itself one letter at a time”. Zach is recognized globally as a solar energy, electric car, energy storage, and wind energy expert.

Junior Correspondent, Clean Energy Wire

Julian Wettengel is a staff Junior Correspondent for the Clean Energy Wire. Before joining CLEW, Julian served as a parliamentary assistant to the Chairman of the Foreign Affairs Committee in the European Parliament. Julian holds a Master’s degree in political science from the University of Kiel.

Founder and Managing Director of DWR eco

During the last 20 years, David has worked in Asia, Europe and the US for organisations such as the World Council for Renewable Energy, the German government and First Solar, accumulating experiences in business development, public affairs and strategic consulting in environmental technologies and sustainable development.

Read David Wortmann opinion pieces:

Journalist, Cleantechnica

“There are more solutions than obstacles,” says Nicolas Zart about the electric vehicles industry. Born and raised around classic cars of the 1920s, it wasn’t until Nicolas Zart drove one of the first Tesla Roadsters that the light switched on. Eager to spread the news about electric vehicles, he started writing in 2007. Nicolas offers an in-depth look at the e-mobility world through interviews and the many contacts he has made in the industry.

Contact Anne-Sophie Garrigou at if you are interested in becoming an Energizer for the next edition of The Beam.


The Beam unites the changemakers and innovators in the Global Climate Action movement to amplify their voices.

The Beam

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The Beam

The Beam unites the changemakers and innovators in the Global Climate Action movement to amplify their voices. Contact us:


The Beam unites the changemakers and innovators in the Global Climate Action movement to amplify their voices.

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