Company

Your business requires reliable energy. Reliable energy requires a long-term partner.

Your business requires reliable energy. Reliable energy requires a long-term partner.

We are more than developers. Onyx’s in-house team of engineers, legal experts, O&M specialists, and finance professionals has the experience to navigate complexity and deliver results that fuel your growth.

Partner with Onyx

Sunlit solar array showcasing a high-performance system built with trusted development partners.

Onyx Renewables provides end-to-end, localized energy solutions to commercial, industrial, and institutional customers so they can focus on their core business while accessing more affordable, reliable power.

11Y

Years of
PPAs financed

400+

Projects in
operation to date

11+

Gigawatts of
development experience

Just like the energy we deliver, we’re there when it matters most.

Expansive ground-mounted solar array in a field built for high-capacity commercial solar solutions.

Built to last

Systems are designed, built, and commissioned with long-term operability and maintenance in mind, reducing your day-to-day involvement and operational burden.

A single accountable partner

Onyx develops, finances, builds, owns, and operates each system, eliminating handoffs, accelerating builds, and ensuring consistency from concept through long-term operations.

Rooftop solar for warehouses, offering industrial solar solutions at scale.

Technician installing solar hardware and software, optimizing system performance for maximum energy output.

Customer-first approach

We manage vendors, service schedules, and system performance so you can focus on running your core business.

"We’ve built Onyx on a culture of collaboration and respect, knowing that the best outcomes for our partners come from our steadfast emphasis on quality and customer service at every step."

Mary Beth Mandanas
Chief Executive Officer, Onyx Renewables

Meet the leadership team.

Backed by a wealth of experience across the energy value chain, our leadership team brings the expertise required to deliver long-term value to partners and customers.

Mary Beth Mandanas

Chief Executive Officer

Jamie Weber

Chief Financial Officer

Patty Rollin

Chief Commercial Officer

Angie Daoud

Chief Operating Officer

Pamela Sutton-Hall

Chief Legal and Administrative Officer

Gregory Fuller

Senior Vice President, Asset Management

Matthew Chen

Senior Vice President, Controller

Kevin Cox

Senior Vice President, Origination

John Fairbairn

Senior Vice President, HR and Administration

John O’Brien

Senior Vice President, Capital Markets

Raif Armstrong

Vice President, Project Management

Lara Bushwood

Vice President, Project Development

Stephen Frazier

Vice President, Pre-Construction

Kevin Li

Vice President, M&A

Thien Nguyen

Vice President, Engineering

Charlie Russell

Vice President, Corporate Finance

Elizabeth Stevens

Senior Legal Counsel

Ben Sheldon

Vice President, Technology

Danielle Mechling

Senior Counsel

Our team’s expertise supports

quality service that translates to

faster issue resolution.

Check out our quality page

Everyone plays a role in building a resilient energy system.

Onyx works alongside energy buyers, builders, and operators to bring high-performing clean energy projects to life. By aligning stakeholders and skillsets, we move projects forward, reduce costs, and create long-term value across the energy system.

Power your business
with Onyx

As an energy buyer, your decisions matter. Choose solutions that deliver predictable costs and long-term stability to your company. We'll deliver them while reducing strain on the grid.

Make the shift:
Choose better energy.

Explore solutions

Build your career at Onyx

As an Onyx employee, your work directly impacts how energy is delivered every day. Play a role in creating the systems that provide predictable costs and long-term reliability for the country’s biggest energy buyers while building skills across the energy value chain.

Where to start:
Explore Onyx career opportunities.

View open positions

Partner to deliver energy projects with Onyx

As an EPC or developer, you create the systems that power the economy. Onyx acquires energy projects and partners with experienced teams to execute reliable, high-performing, client-focused projects to the highest quality standards.

Let’s work together:
Deliver projects, scale your business.

Explore partnerships

Partner to deliver energy projects with Onyx

As an EPC or developer, you create the systems that power the economy. Onyx acquires energy projects and partners with experienced teams to execute reliable, high-performing, client-focused projects to the highest quality standards.

Make the shift:
Choose better energy.

How we did it

Partner to deliver energy projects with Onyx

As an EPC or developer, you create the systems that power the economy. Onyx acquires energy projects and partners with experienced teams to execute reliable, high-performing, client-focused projects to the highest quality standards.

Make the shift:
Choose better energy.

How we did it

Partner to deliver energy projects with Onyx

As an EPC or developer, you create the systems that power the economy. Onyx acquires energy projects and partners with experienced teams to execute reliable, high-performing, client-focused projects to the highest quality standards.

Make the shift:
Choose better energy.

How we did it

Sunny mountain landscape with clear skies, symbolizing transparency, responsibility, and sustainable practices in corporate social responsibility.

Transparency and responsibility

As we deliver reliable energy to your business, we’re also supporting communities, protecting the environment, and driving forward positive change as a receptive and responsible clean energy solutions provider to our partners nationwide.

CSR statement

2024 sustainability report

Your business requires reliable energy. Reliable energy requires a long-term partner.

Your business requires reliable energy. Reliable energy requires a long-term partner.

Onyx Renewables provides end-to-end, localized energy solutions to commercial, industrial, and institutional customers so they can focus on their core business while accessing more affordable, reliable power.

11Y

400+

11+

Just like the energy we deliver, we’re there when it matters most.

"We’ve built Onyx on a culture of collaboration and respect, knowing that the best outcomes for our partners come from our steadfast emphasis on quality and customer service at every step."

Meet the leadership team.

Our team’s expertise supports

quality service that translates to

faster issue resolution.

Everyone plays a role in building a resilient energy system.

Transparency and responsibility

Let’s start the conversation

Your business requires reliable energy. Reliable energy requires a long-term partner.

Your business requires reliable energy. Reliable energy requires a long-term partner.

Everyone plays a role in building a resilient energy system.