Meet CEP Calgary's Board


Matt leads sustainability initiatives, strategy and reporting at TransAlta Corporation & TransAlta Renewables in the role of Sustainability Advisor. TransAlta is a global power generation company with operations across North America and Australia. Previous work experience within the energy sector includes corporate communications, investor relations and consulting (energy management, low-carbon energy solutions and sustainability). Matt holds an MSc. in Renewable Energy and Enterprise Management from Newcastle University in the UK. In his spare time Matt supports TransAlta’s Eco-Action initiatives, is Vice-President of Education at Speak Easy Toastmasters and thrives on spending time with the three ladies in his life; his wife, young daughter and rescue dog.

Matthew Toohey

Rachel is a keen environmentalist working for a large oil and gas company. Her work focuses largely on policy analysis, as well as managing greenhouse gas emissions and energy reductions. She has a Bachelor of Science in Environmental Science and a Master of Public Policy, specializing in environment and energy policy, both from the University of Calgary. Rachel is motivated to connect with like-minded people and organizations focused on sustainable living. In her spare time, she likes to stay active outside and enjoys travelling, scuba diving, and playing with her pets.

Rachel D'Silva
Elliot Weinstein
National Liaison

As written by Elliot's 9 year old nephew, Sam.

Elliot was born in Vancouver, and now lives in Calgary. He sort of likes skiing, especially with his 3 nephews and 2 nieces.

He likes to play video games on his phone all day and look on snap chat. He buys really good video game presents, especially when he comes home from Japan with Sonic the Hedgehog and Mortal Kombat.

I think you also do something else, you play frisbee. Elliot’s nephew Sam skied in the Slush Cup at Hudson Bay Mountain in Smithers in March.

Uncle Elliot likes to play volleyball on sand so much, that he is starting his own indoor beach volleyball business, called The Beach YYC.

Sam gets pretty excited to talk to his Uncle Elliot because he is fun to talk to.

Elliot’s other nephews and nieces are named Corbin and Fern, in Smithers, and Millie and Eli in Vancouver, BC.

Ksenia Prialova

Ksenia is an innovative environmental professional with an extensive experience in managing environmental issues impacting the oil & gas and electrical industries and comprehensive knowledge of Energy, Environment and Natural Resources law and regulations.

She attained her both bachelor’s degrees in Environmental Engineering and Civil Law in Russia, following by the Post-Baccalaureate Certificated in Energy, Environment, and Natural Resources Law from the University of Calgary. Upon earning her degrees, she became certified as a Canadian Environmental Professional (EP) and registered as a Canadian Environmental Site Assessor (CESA). Her strong education and wide-ranging experience led her to take on several positions at the top environmental responsibility rating oil and gas companies such as Surgutneftegaz and Gazprom in Russia, and TransCanada in Canada.


Ksenia has also volunteered for different nonprofit organizations such as ECO Canada, the Young Women’s Christian Association of Calgary (YWCA) and the Calgary Catholic Immigration Society (CCIS).

In 2012, she was recognized by Worldwide Who’s Who for showing dedication, leadership and excellence in the environmental protection field.


Ksenia is an avid plant-based athlete. Her favorite sport activities include running, snowboarding, hiking and mountain biking. Ksenia has three half-marathons, two marathons, one sprint triatlon, and about 100 mountain peaks under her belt. 


Barend works at Energy Efficiency Alberta (EEA) in the Portfolio Planning team, which develops medium to long-term plans for its energy efficiency and renewable energy programming. His experience includes policy analysis and advocacy at the Pembina Institute, and leading a team on efficiency and electrification research at the University of Calgary’s CESAR lab. He holds a Master of Sustainable Energy Technology from the Delft University of Technology and is a Waterloo engineering grad. When not seated behind a desk, he loves exploring the great outdoors on bikes, boots, skis, and climbing ropes!

Barend Dronkers
Board Member

Jessi-Ann is a senior-level communications and sustainability professional. She has over 17 years progressive experience in corporate communications, sustainability, community engagement and stakeholder relations. Knowledgeable and passionate about sustainability, Jessi-Ann enjoys providing value through creative thinking, conscious strategies and compelling communications. Jessi-Ann's previous board experience includes serving on the board of Green Calgary as Chair of the Marketing and Communications Committee and serving on the board of the International Association of Business Communicators (IABC) Calgary where she co-managed the Professional Development portfolio after five years of volunteering for IABC. In 2009, Jessi-Ann co-founded her company's Eco-Action Team, an employee green team which, more than a decade later, is still active implementing a breadth of events and activities in order to engage employees across the organization to make positive changes for the environment. Born and raised in Calgary, Jessi-Ann enjoys gardening, baking and spending time with her family.

Jessi-Ann Riddell
Board Member

Bio coming soon!

Paolo Bomben
Board Member
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