Built on 30 Years of Integrity
Deltro delivers engineering, electrical construction, and solar energy solutions across North America — founded 1987, based in Mississauga.
Our Services
End-to-end capabilities across the full project lifecycle.
Engineering & Construction
Full-service electrical engineering and construction for utility-scale solar, transmission, and industrial facilities.
Project Management
Comprehensive oversight from feasibility through commissioning, ensuring projects are delivered on time and on budget.
Project Maintenance
Long-term operations and maintenance programs that protect asset performance and extend service life.
Value Chain Management
Strategic procurement and supply chain solutions that reduce cost and risk across complex energy projects.
Three Divisions. One Mission.
Deltro Electric
Industrial and commercial electrical contracting, transmission infrastructure, and power systems across North America.
Deltro Solar
Utility-scale solar development, engineering, and construction — from greenfield sites to full commissioning.
Deltro Energy
Battery energy storage systems (BESS) and emerging clean energy technologies for grid-scale applications.
Three Decades of Powering Progress
Founded in 1987 by David Del Mastro, Deltro Electric has grown from a local electrical contractor into a multi-division energy company operating across North America and the Caribbean.
Our work spans utility-scale solar farms, high-voltage transmission infrastructure, battery energy storage, and complex industrial electrical systems — always delivered with the integrity and craftsmanship that have defined Deltro for over 30 years.
From a 200 MW solar project in Ohio to a landmark renewable energy initiative in Barbados, Deltro brings the same commitment to every project: do it right, do it safely, and do it on time.
Projects That Define Us
Hillcrest Solar
One of the largest solar installations in Ohio, delivering clean energy to tens of thousands of homes.
Agate Bay Solar
Utility-scale solar development in the Pacific Northwest, engineered and constructed by Deltro Solar.
Cienfuegos
A landmark 100 MW solar project supporting Cuba's national renewable energy transition.
Barbados Renewable Initiative
A transformative renewable energy program creating over 500 local jobs and advancing Barbados's clean energy goals.
Leadership
David Del Mastro
President, CEO & Founder
David Del Mastro was raised in a small rural community just outside of Wasaga Beach, Ontario. His vision for what is known today as the Deltro Group of Companies originated when he helped his uncle complete electrical wiring for the new addition to the family home. From that point on, he knew he wanted to pursue a career in the electrical field.
Following his graduation from high school, David started his electrical apprenticeship at George Brown College in Toronto. Finishing at the top of his class, David received his Red Seal Endorsement as a 309A- Electrician – Construction and Maintenance. Soon after, David achieved his designation as a Master Electrician.
At only 23 years old, David founded Deltro Electric Ltd. which is now entering its 30th year. With a keen eye for problem solving, David challenges conventional methods of thought as he believes there can always be a better way of completing a task. This mindset has driven him, and Deltro to much of its success over the years.
Today, David is the President and Chief Executive Officer of the Deltro Group of Companies. Though he focuses much of his time on business development and relationship building, on occasion, David lends his expertise to the operations team for complex electrical problem-solving.
Outside the office, David spends quality time with his family and is an avid sports fan.
Knowledge Centre
Explore our articles on solar energy, electrical infrastructure, and the technologies shaping the future of clean power.
Solar Panel Manufacturing
An in-depth look at how photovoltaic panels are engineered and produced — from raw silicon to utility-scale modules — and what advances in manufacturing mean for project economics and performance.
History and Evolution of Solar Energy
From the first photovoltaic cell in 1954 to today's gigawatt-scale solar farms, trace the milestones that transformed solar from a laboratory curiosity into the world's fastest-growing energy source.
Get in Touch
Ready to start your next project? Reach out to our team.