Meet the team

Drawing on decades of North American utility-scale power sector experience, our management team is pushing the boundaries of smart energy.

Tim Derrick
CEO – North America

Tim leads the Lightsource North America team, overseeing the innovative deployment of utility-scale solar and storage solutions in the US market. He began his career at Enron Wind and GE Wind Energy before co-founding Axio Power – a platform which developed a 1 Gigawatt (GW) pipeline of utility-scale solar projects and was acquired by SunEdison in 2011. Tim held leadership roles at SunEdison’s North American utility wind and solar business, as well as its energy storage division.

Kevin Christy
COO – North America

Kevin co-founded the utility-scale PV developer Axio Power in 2007 – a platform which developed and delivered 1 Gigawatt (GW) of solar projects and pipeline. Axio was the first utility-scale platform acquired by SunEdison in 2011. While at SunEdison, Kevin managed the North American utility-scale development portfolio, served in several leadership roles overseeing global O&M and asset management teams, as well as developing next-generation commercial applications for battery energy storage.

Katherine Ryzhaya
CCO – North America

Katherine joins from Advanced Microgrid Solutions, a company she co-founded which is now a leader in energy storage solutions for utilities and large commercial and industrial customers. During her tenure, AMS secured 120MW in utility contracts and enterprise-level agreements with Walmart, California State University and Shell Energy North America. Her previous positions include VP and Director of Evolution Market’s western power desk, Principal of Energy Procurement at Pacific Gas and Electric, and finance roles with RBC Capital Markets and UBS.

Lightsource Group Leadership


Nick Boyle
Founder and Group CEO

In 2010, Nick founded Lightsource Renewable Energy, then just a six-person start-up, now Europe’s largest solar PV developer and operator. Before the inception of Lightsource, Nick sat at Board and Senior Director level in a number of leading retail financial service companies. Throughout his career, his entrepreneurial skill and success in pairing retail financial products with low-risk, predictable investment revenue became well known throughout the industry. In his role as CEO, Nick’s dynamic leadership and vision has driven Lightsource to tremendous success in just six years.


Paul McCartie
Group CIO

As one of the company’s founders, Paul has overall responsibility for financial structuring of deals and debt project financing of Lightsource’s portfolio of solar assets. He structured and led the procurement of over £1.1 billion of project finance debt in 2015, including the first ever sterling, benchmark-sized bond, and the largest ever sterling renewables bond. Paul’s experience and knowledge, gained throughout a successful career in project finance at Investec Bank and Rolls-Royce Power Ventures, are essential to Lightsource’s development and expansion from start-up to industry leader.


Kareen Boutonnat
Group COO

Following Master’s degrees in Electrical Engineering and Engineering Management, and ample experience aiding growth, development and expansion in a number of start-ups across a number of fields, Kareen joined Lightsource in 2012. Becoming first Managing Director and then COO, Kareen’s knowledge and expertise has driven the delivery of an extensive pipeline of commercial solar projects for the company. These significant achievements set Lightsource on course to break the 1GWp milestone, and secured its position as the largest solar energy company in Europe.

James Brooks-2 (Large)

James Brooks
Group CSO

James has had an impressive career in private equity, spanning 13 years. Prior to joining Lightsource in 2016, he was Head of Energy Investment in EMEA for Goldman Sachs, one of the largest private equity investors in energy, globally. This wealth of experience ensures that James is perfectly placed to oversee strategy, international development and product and technology innovation at Lightsource, leading the team in ways they never dreamt possible, and driving the company’s global expansion.


Will Cooper
Group CFO

Bringing a wealth of experience in both listed and privately owned companies covering all aspects of finance, Will joined Lightsource in 2016. He’s a qualified accountant and treasurer, holds a degree in commerce and accounting, and has gained significant financial expertise during a successful and varied career. Having previously held senior finance positions at Infinis Energy, the UK’s largest independent renewable energy generator, Will is perfectly placed to lend his expertise to Lightsource’s expanding legacy.

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