Trending Renewable Energy Expert Speakers to Hire in 2025

Fossil fuels currently dominate global energy production, accounting for 80% of the total energy supply. However, they are the leading cause of climate change, responsible for over 75% of greenhouse gas emissions. To combat this, a rapid shift to renewable energy is essential. Hiring a renewable energy expert speaker can help guide this transition effectively.

What Are The Different Types of Renewable Energy?

There are several types of renewable energy, including wind, solar, hydroelectric and bioenergy. Wind power is the largest source of renewable electricity in the UK, generated by onshore and offshore wind farms. Solar energy captures sunlight using panels, converting it into electricity via the photovoltaic effect. Hydroelectric power uses flowing or falling water, including waves and tides, to spin turbines and generate electricity. Bioenergy involves burning organic materials such as plants and food waste. Though it releases carbon dioxide, it is considered renewable as the materials can be regrown, absorbing carbon over time. These sources offer cleaner alternatives to fossil fuels.

Source: National Grid

What Are The Challenges of Renewable Energy?

One of the main challenges of renewable energy in the UK is its inconsistency. Solar and wind power depend on weather, making it difficult to produce a steady supply of electricity year-round. Unlike fossil fuels, which provide constant output, renewables can be unpredictable. To address this, there’s a growing push to develop better energy storage solutions, such as advanced, cost-effective batteries. These would store excess power generated during optimal conditions for later use. However, many renewable technologies are still developing and have yet to fully integrate into society at the same scale and reliability as fossil fuels. The transition remains ongoing.

Source: Institute of Energy and the Environment & Forbes

Who are the Top Trending Renewable Energy Expert Speakers to Hire in 2025?

Based on opinion polls conducted across 112 renewable energy-themed events between 2022 and 2024, The Sustainability Speakers Agency has compiled a list of the Top Renewable Energy Speakers to Hire for 2025.

1. JB Straubel
2. Heather Zichal
3. Andy Pag
4. Martin Eberhard
5. Peggy Liu
6. Paddy Lowe
7. Dale Vince
8. Isobel Sheldon
9. Jan Rosenow
10. Chris Ramsey
11. Bertrand Piccard
12. Jeremy Leggett

JB Straubel

JB Straubel, Co-Founder of Tesla Inc. and CEO of Redwood Materials, is a pioneering figure in the field of renewable energy and sustainability. With a background in engineering and a history of innovation at Tesla, including the development of battery cells and the Gigafactory concept, JB has become a global leader in clean energy solutions. His current venture, Redwood Materials, focuses on large-scale lithium-ion battery recycling, addressing critical issues surrounding e-waste. As a speaker, JB is highly regarded for his ability to educate businesses on adopting innovative, profitable, and environmentally responsible practices, making him an ideal voice for renewable energy discussions.

Heather Zichal

Heather Zichal is a renowned expert on sustainable energy with a distinguished career in addressing climate change. As the former Deputy Assistant to President Obama on Energy & Climate Change, she played a key role in the 2010 BP oil spill response and in shaping climate policy. Currently, as CEO of the American Clean Power Association, Heather leads efforts in renewable energy, focusing on solar, wind, and energy storage. Her experience spans both public and private sectors, and she has held significant roles with The Nature Conservancy and the Blue Prosperity Coalition. Heather’s expertise makes her a trusted authority on renewable energy and sustainability.

Andy Pag

Andy Pag is a renowned international adventurer and investigative journalist with a powerful mission to raise awareness about the global environmental crisis. Known for his innovative expeditions, such as travelling the world in a scrap school bus powered by used cooking oil, Andy has demonstrated the potential of sustainable transport solutions. His global adventures have garnered media attention, and he now uses his experiences to educate corporate audiences on sustainability. As a sought-after speaker, including TEDx engagements and appearances for companies like Deloitte, Andy captivates audiences with compelling stories that inspire action towards a more sustainable future.

Martin Eberhard

Martin Eberhard is a pioneering figure in renewable energy and sustainable innovation. As the Co-Founder and former CEO of Tesla Motors, he played a crucial role in developing the Roadster series and establishing Tesla as a leader in the electric vehicle industry. With a background in electrical engineering, Martin has dedicated over two decades to advancing eco-friendly transportation. Beyond Tesla, he has held key positions at Volkswagen, SF Motors, and Inevit Inc. Since 2018, he has focused on EV battery and safety standards as the Founder and CTO of Iveni Inc. Martin is a sought-after speaker, helping businesses adopt sustainable practices.

Peggy Liu

Peggy Liu is a leading advocate for renewable energy and sustainability, serving as the Chairperson of the Joint US-China Collaboration on Clean Energy (JUCCCE). With a career spanning over a decade, she has been pivotal in shaping China’s green future through initiatives like smart grids, eco-cities, and energy-efficient products. A recognised World Economic Forum Young Leader, Liu has also founded Food Heroes, a programme promoting sustainable diets. A TEDx speaker and professor, she is passionate about driving societal change. Liu’s expertise and dedication to sustainability make her an ideal speaker to inspire and educate corporate audiences on environmental action.

Paddy Lowe

Paddy Lowe is a distinguished engineer, known for his groundbreaking work in Formula One and sustainable energy. After a successful career with Williams, McLaren, and Mercedes, where he contributed to 12 World Championships, Paddy transitioned to renewable energy. In 2020, he co-founded Zero Petroleum, a company dedicated to producing carbon-neutral synthetic fuels using renewable energy. His leadership led to the first aircraft flight powered entirely by synthetic fuel in 2021. With expertise in innovation and decarbonisation, Paddy is a compelling speaker on renewable energy, advocating for sustainable solutions in sectors like aviation and heavy machinery, making him an ideal choice for promoting sustainability.

Dale Vince

Dale Vince OBE is a renowned British green energy industrialist and the founder of Ecotricity, one of the leading renewable energy companies. Since launching his first wind turbine in 1996, Dale has become a prominent figure in the sustainability sector. His expertise extends beyond energy, having introduced eco-initiatives at Forest Green Rovers FC, the world’s first carbon-neutral and vegan football club. A passionate advocate for renewable energy and climate action, Dale is frequently sought after as a speaker to inspire change. His industry knowledge, political influence, and global impact make him the ideal choice for any event focused on sustainability.

Isobel Sheldon

Isobel Sheldon OBE is a highly respected expert in sustainable and battery technology, recognised globally for her transformative contributions to the renewable energy industry. As the Founder and Principal Consultant at Oakpolytech and a Non-Executive Director at the Offshore Wind Growth Partnership, she has led efforts to optimise the planet’s natural resources. Isobel’s extensive career includes senior roles at organisations like Britishvolt and Johnson Matthey. Awarded an OBE for her work, she is a sought-after speaker, inspiring audiences of all ages with her insights on energy transition and sustainability. Isobel is an exceptional choice for any event focused on renewable energy.

Jan Rosenow

Jan Rosenow is a renowned sustainability expert with a career dedicated to advancing clean, fair, and efficient energy. From founding an environmental group at eight to becoming a leading voice in renewable energy, Jan has worked across various roles, including policy advisor, consultant, and researcher. His expertise is vast, from his early research at the Wuppertal Institute to his current position as Vice President for Global Strategy at the Regulatory Assistance Project. Jan’s ability to engage audiences with practical insights and academic rigour, combined with his extensive experience, makes him an ideal speaker for driving global sustainable change.

Chris Ramsey

Chris Ramsey is a pioneering sustainability advocate renowned for his groundbreaking expeditions, which showcase the potential of electric mobility. His dynamic presentations blend adventure and environmental insight, making him a sought-after speaker. Chris demonstrated his commitment to eco-friendly travel early on, completing a journey through the UK in an electric car in 2012. Since then, he has achieved extraordinary feats, including becoming the first person to drive an electric vehicle from the Magnetic North Pole to the South Pole. With a passion for innovation and real-world environmental impact, Chris is the perfect choice to inspire action and drive the global transition to sustainability.

Bertrand Piccard

Bertrand Piccard is a visionary environmentalist and sustainability expert, renowned for his groundbreaking achievements in clean technology and renewable energy. As a pioneering adventurer, he made history with the first solar-powered global flight and record-breaking feats such as flying around the world in the Breitling Orbiter. His innovative spirit and commitment to environmental sustainability are reflected in his work with initiatives like the Efficient Solution Label and his role with the United Nations Environment Programme. Piccard’s inspiring career and expertise make him the ideal speaker on renewable energy, offering both motivational insights and practical solutions for a sustainable future.

Jeremy Leggett

Jeremy Leggett is a distinguished social entrepreneur, writer, and climate campaigner, widely regarded for his leadership in sustainable energy. As the founder of Solarcentury and SolarAid, he has driven innovation in renewable energy and championed the transition from fossil fuels. With a D.Phil in Earth Science and a background in academia and Greenpeace, Jeremy has a strong scientific foundation. His extensive experience and visionary leadership in projects like Highlands Rewilding make him an ideal speaker on renewable energy. His authoritative insights, shaped by years of advocacy and writing, inspire global audiences to act on climate change and sustainability.

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