About Us

Founded in 2006, we are the national leader in electrical resiliency-as-a-service, powering companies, critical infrastructure, and communities to ensure business continuity during unexpected power outages from extreme weather, infrastructure failures, cyberattacks, and other grid disruptions. Enchanted Rock’s electrical microgrids uses natural gas and renewable natural gas (RNG) to produce significantly lower carbon emissions and air pollutants than diesel generators, and can achieve resiliency with net-zero emissions. The company’s end-to-end microgrid software platform, GraniteOSTM, provides real-time 24/7/365 system monitoring and optimization, including forecasting of electricity market conditions to ensure worry-free reliable power to customers.

Our Technology

Based on his experiences in nuclear energy engineering and systems management for the U.S. Navy, Enchanted Rock founder Thomas McAndrew created a cleaner, quieter, and far more reliable solution than traditional diesel generators.

Enchanted Rock’s unique Managed Power Resiliency solution brings patented technology, advanced microgrid designs, and integrated services together in a tightly orchestrated delivery model, fully managed by energy experts.


Our microgrids use readily available clean-burning natural gas or optional renewable natural gas that reduces local emissions by orders of magnitude and provides carbon free resiliency.

Quiet & Compact

With a standard package sound level of < 68 dBa at 7 meters and power density matching diesel, our modular microgrids allow for multiple space-saving layout configurations.

Resilient & Reliable

Our microgrids provide quick start backup utility-grade generation in the event of an outage and provide grid support services to support integration of renewables. Our systems run often and loaded, ensuring constant equipment conditioning and testing for greater availability than traditional diesel backup.


Combined Reliability

MW Commissioned

Distributed Generation Sites

Outage Hours Covered

Unit Run Hours

MW Under Construction

Awards & Recognition

What We Stand For

At Enchanted Rock, our mission is making sure the power is on for our customers.


Enchanted Rock is committed to ongoing research and development efforts in emerging technologies to advance the effort to decarbonize the grid and local resiliency at the most affordable cost.

Market Leadership

Our team has deep energy expertise, with nearly 200 cumulative years of experience in energy engineering, design, procurement, assembly, project management, and energy operations and asset management.

Industry Memberships


We have big plans for continued global growth, and we’re looking for people who are creative, flexible, and dedicated to helping us build something great – something that matters.