About Us

Innovative Solutions to Maximize Your Benefits

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Who We Are

We are passionate and innovative in everything we do, with a foundation of honesty and integrity.

Top Commercial Solar installer in Southern California

What We Do

We pride ourselves in safely delivering the highest quality products, service, and workmanship.

Best solar company in San Diego celebrates growth

People Forward

Our team, customers, and partners are the lifeblood of what we do.  We foster a friendly, fun, and family-oriented environment.

About HES Renewables

Commercial Solar in San Diego

HES Renewables expanded from HES Solar. In 2023 HES Commercial Inc., dba HES Renewables, was incorporated and continued its quest since 2001 to put the power into the hands of the people and businesses of California. HES Renewables is a local, family owned and operated, full-service commercial solar company.

Since our founding, our main focus has been to share the financial and environmental benefits of renewable energy. We use the best quality components to provide energy systems that are designed for durability and results.

We use Tesla and BYD for battery storage to provide maximum energy storage capacity for your business or property. All of our installers are highly trained and certified by Tesla and BYD. We don’t subcontract our installations.

We are committed to client success and 100% customer satisfaction. We will deliver cost-saving alternatives to utility power that bring financial savings, energy cost stabilization, reliable power, and energy independence; and our industry experts will ensure your system maximizes the incentives available to your business.

We have brought solar power to the people since 2001 and can help you too. Call us at 866.437.7639 or schedule your free energy consultation online.
Commercial energy storage installation
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Tesla Megapack energy storage system installation by HES Solar

Meet Our Leadership Team

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President and CEO
commercial solar and energy storage company officer


Vice President
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Meet Our Sales Team

commercial solar company salesman wearing a polo


Director of Business Development
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Director of Sales
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California commercial solar salesman in a polo


Territory Sales Manager
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Territory Sales Manager
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Territory Sales Manager
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Sales Development
Commercial solar sales engineer


Sales Engineer
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Sales Engineer

Meet Our operations Team

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Director of Operations
California solar engineer with a big beard


Chief Electrician
Top commercial solar construction manager


Construction Manager
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PMO Manager
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Design Lead
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PV Designer II
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PV Designer
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PV Designer
Top commercial solar project manager for Southern California


Project Manager
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Project Manager
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Project Manager
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California solar employee


Quality / Safety Manager
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Assistant Construction Manager
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Meet Our SERVICe Team

Commercial solar service manager


Service Manager
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Field Manager

Meet Our Office Team

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Human Resources Manager
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Purchasing Manager
Commercial solar company marketing manager


Marketing Manager
San Diego solar company employee


Office Manager
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Accounting Manager
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Jr. Staff Accountant

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Ross Williams

President And CEO

Mr. Williams joined Home Energy Systems in 2010 where he began developing and implementing many of the company’s programs and policies that are still in use today. His degree in Business Administration from the University of Pittsburgh as well as his professional experience as a successful project manager for a Washington DC area general contractor served him well when he moved to California and joined the solar industry and its purpose. Mr. Williams spurred initial quick growth of the brand and immediately knew it was his calling. So confident in the business’ direction, in 2015 Mr. Williams purchased the company from its trailblazing founder. Since then Mr. Williams has expanded, improved, and rebranded the company to HES Solar. In 2023 the company’s commercial division expanded and incorporated as a stand-alone company, HES Renewables. Through innovation, a focus on customer care, partnerships with premier solar component providers, and the evolution of a company culture his efforts have resulted in an average annual growth of 30%. Mr. Williams serves as President and CEO of both HES Renewables and HES Solar.

Wenjie Chen


Mr. Chen first applied his Bachelor’s degree in Mechanical Engineering from UC Berkeley to auto industry projects prior to entering the solar industry in 2011 with a stint in design & engineering at Tesla/SolarCity that took him through residential solar and into commercial solar. In July of 2017 Mr. Chen made the jump to HES Renewables (then HES Solar’s Commercial Division) and after that point the company won four straight SunPower Commercial Regional Top Producer of the Year awards as well as being honored with the 2020 SunPower National Commercial Dealer of the Year top designation. Mr. Chen leads HES Renewable’s creation of the best quality systems that optimize locations, expansion of installations of energy storage and EV charging stations, strengthening of HES Renewable’s amazing partnerships, and spreading of the company’s reach across the entire Southern California region from its San Diego home base.

Eva Tan


Ms. Tan moved to Northern California from Singapore in 2004 and reached San Diego in 2012 where she earned a Bachelor’s degree in Economics with a minor in Finance from UC San Diego. She worked for a short time as a consultant to HES Renewables (then HES Solar) beginning in 2019 and joined the company full-time in 2020 to adapt the department to the company’s rapid growth. Ms. Tan structures and guides the accounting department’s procedures and systems to meet the evolving needs of the various departments she supports. HES Renewables/HES Solar is the first solar industry company Ms. Tan has worked at and she is inspired and impressed by the passion her co-workers show for the work being done at the company.

Brad Souza

President of Residential

Mr. Souza joined HES Solar in the Spring of 2020 to oversee the Residential division just as the COVID-19 lockdowns were being enacted. Undaunted, and with 22 years in the energy industry, Mr. Souza led the division through the rapidly changing business landscape and ultimately delivered the division’s best quarter just nine months after taking the reins. Mr. Souza’s work experience at SunPower exposed him to HES Solar’s impressive design, install, and service functions as well as the company culture, and when an opportunity arose for him to grow what he saw as the best solar installer in Southern California he made the leap and has steadily expanded the Residential division. Mr. Souza has earned a Bachelor’s degree in Environmental Resources Engineering with an emphasis on Energy from Humboldt State University and an MBA from the University of Southern California. He is also a licensed Mechanical Engineer in California.

Spencer Holt

Director of Sales / Business Development

Mr. Holt developed a successful marketing and sales career before joining HES Renewables (then HES Solar) in 2018 to lead the company’s Commercial Sales and Business Development. His knowledge, relationships and innovative approaches have been instrumental components in the strong and steady growth of the company since his arrival. After earning a degree in Political Science from UC Berkeley Mr. Holt has made San Diego home for the past 20 years. He brings a wealth of local experience and relationships to the HES team, and he is excited to grow HES Renewables through improving the financial position of local businesses while also expanding the renewable energy footprint in the state. He takes pride in the company’s distinction of winning SunPower’s “Top Commercial Regional Producer of the Year ” award for four consecutive years as well as receiving SunPower’s 2020 National Commercial Dealer of the Year Award, the manufacturer’s top honor.

Nick Liles

Director of Internal Sales

Mr. Liles grew up in North Carolina before his family moved to California when he was 12 years old. Mr. Liles joined HES Renewables (then HES Solar) in the summer of June, 2023 with a decade of solar experience that covered everything from lead generation, to inside sales, to development and training. Mr. Liles initially took an interest in the California solar industry due to its impressive growth; over his decade in the business he has found the most gratifying aspect to be delivering solar’s energy cost savings to businesses and people. At HES Renewables, Mr. Liles’ focus is on growing the best customer-focused commercial solar division in California. When Mr. Liles and his wife are not on local adventures with their dogs, they enjoy visiting the national parks and local amusement parks.

Jacob Poole

Territory Sales Manager

Mr. Poole joined HES Renewables in late 2023 with five years of solar industry experience, including three years in solar financing. His solar industry experience began shortly after serving in the Navy. Mr. Poole enjoys showing prospective clients how a solar or solar + storage system can save their company millions of dollars in energy costs while simultaneously lowering their businesses’ carbon footprint. He takes great satisfaction helping those companies free up budget to re-invest into their own company and employees. He appreciates the integrity HES Renewables displays with every project and with every client. When not in the office or on a visit with a client, you will likely find Mr. Poole taking his daughters to a practice, watching one of their games, or at the gym.

Kirstin Bement

Territory Sales Manager

Mr. Bement joined HES Renewables in early 2024 as a Territory Sales Manager for the Los Angeles area. Mr. Bement brought 18 years of solar experience to his role and now leads the push to expand HES Renewables further into the greater Los Angeles region. Mr. Bement has a deep understanding of all facets of solar power and energy storage, from project development, design, engineering, permitting, construction and ongoing asset management. Throughout his solar industry experience he found his calling in consultative business development; he finds tremendous satisfaction in helping clients achieve their energy and cost-saving goals, and takes pride in strong follow-through to ensure each energy project is perfectly understood and fully utilized. On a deeper level, Mr. Bement finds great meaning in helping the US move toward cleaner, greener energy sources. When not working or spending time with his family, Mr. Bement enjoys surfing, sailing and practicing as many musical instruments as he can get his hands on.

David Shemai

Territory Sales Manager

Mr. Shemai joined HES Renewables in 2024 after three years as an energy consultant at HES Solar. He grew up in Cincinnati and doubled-majored at Ohio State University in Business Marketing and Spanish Literature. Mr. Shemai stepped from the university commencement ceremony in Ohio almost directly onto the beach sand of San Diego in 2007; he started his sales career that same year. He has succeeded in the corporate world while also following his entrepreneurial drive in 2012 by creating and growing an active wear company with designs based on and inspired by the culture of Thailand. Mr. Shemai gets great satisfaction in bringing the financial and environmental benefits of solar and energy storage to clients. When Mr. Shemai isn’t at work, he can be found surfing, sailing, climbing, running, SUPing, snowboarding or even playing the musical instrument “the hand pan.”

Nikiya Tumblin

Sales Development

Born in Chicago, Mrs. Tumblin has been a San Diegan since childhood. She  joined the HES Renewables business development group in the Summer of 2023. Mrs. Tumblin brought with her 15 years of sales experience, seven of which was in the renewable energy industry, along with a Bachelor’s Degree in Business Administration. Ms. Tumblin enjoys all aspects of sales and is happy to be a part of the growth of HES Renewables. Her professional goal is to create and develop long-lasting relationships with clients and colleagues in the renewable energy industry. When not helping to expanded HES Renewables’ reach, Mrs. Tumblin loves spending time with her family and enjoys discovering new rooftop restaurants in San Diego.

aleX guerena

Sales Engineer

Mr. Guerena grew up in Mexico and moved to San Diego in 2008 and now lives in Oceanside. He joined HES Renewables (then HES Solar) in 2022 and brought with him a Bachelor of Engineering degree in Renewable Energies from UTT/SDSU Extension an extraordinary list of certifications and qualifications including the following: OSHA 30, LG Chem and Resu Prime Certified Installer, Enphase PV Designer and Installer, Helioscope Commercial Pro Designer, and more. Mr. Guerena’s solar and energy experience includes solar design from residential systems up to megawatt-sized solar farms; he also has experience designing and installing transmission and distribution lines from 480V to high tension. Mr. Guerena enjoys watching the Padres as well as playing poker or trading card games. Fun fact: he is planning a trip to Japan to attend a trading card convention.

Yazan Ziadeh

Sales Engineer

Mr. Ziadeh grew up in Illinois, spent several years living in Jordan, then moved to San Diego as a teenager where he earned a Bachelor of Science degree in Chemical Engineering from the University of California at San Diego. After gaining experience in the automotive industry as well as the pharmaceutical industry, he joined HES Renewables (then HES Solar) in early 2023. He enjoys being a part of providing energy that reduces business costs and impact on the environment through his role in the solar industry. When he’s not analyzing energy usage, designing solar systems, or preparing commercial proposals you can find Mr. Ziadeh playing basketball or adding to his wristwatch collection. His long-term personal goal is to visit as many countries as possible before reaching the age of 50.

Matthew Ewing

Director of Operations

Mr. Ewing came to HES Renewables with a Business/Communications degree from Chico State and 11 years of experience in renewable energy, including residential solar, utility-scale wind-generated energy, and an 8-megawatt utility-scale solar project. Mr. Ewing joined HES Renewables in November of 2023 where he oversees the project management team, the PV designers, and the construction crews. He takes great satisfaction in saving clients money while also offsetting their company’s emissions and stabilizing their energy availability during blackouts and grid outages . Mr. Ewing is a San Diego native and strives each day to do a random good deed to improve the life or day of a total stranger… if someone ahead of you in line paid for your drive-through order, you may have encountered him already.

Mike Collins

Chief Electrical

Mr. Collins grew up primarily in San Francisco and in other areas of the United States, and as well he and his family lived in Australia for two years while he was a child. The family eventually settled in America’s Finest City and Mr. Collins chose to pursue a career as an electrician. He carries a certificate in embedded microcontrollers from the UCSD program, carried a C-10 Contractors License for six years, and worked with Martin Learn as an electrician prior to Mr. Learn founding  Home Energy Systems (and what is now HES Renewables) in 2001. Once Mr. Learn had established the company and had the opportunity, he hired back Mr. Collins, who was happy to join the young company back in the early 2000s. Mr. Collins has been with HES Renewables ever since, and holds the designation as being the employee who has been with the company the longest. Mr. Collins applies most of his design and build expertise to challenging commercial projects but also gets called up for unique service or residential projects that can benefit from his vast experience, knowledge and understanding. When not working with electronics, Mr. Collins does his own car repair and micro brews small batches of beer.

Brett Reischman

Construction Manager

Mr. Reischman has been a San Diegan since the age of 15 after living in Washington, Alaska, and other parts of California. Mr. Reischman’s solar experience began in 2007 where he first gained expertise in commercial solar; his first job was a full megawatt-sized project. After gaining more expertise in commercial solar he transferred into residential solar construction where he became a Lead Inspection Tech and immediately implemented innovative approaches to improving the quality and completion speed of solar projects. Mr. Reischman joined HES Renewables (then HES Solar) in 2021 where his innovation further bolsters the continued growth and efficiency improvements of HES Renewables. As testament to Mr. Reischman’s penchant to build, one of his hobbies is blacksmithing.

Blake Miller

PMO Manager

Mr. Miller grew up in Arizona but spent summers working in San Diego. He started with HES Renewables (then HES Solar) in 2018 and in 2019 moved full-time to San Diego, bringing along his Bachelor’s degree in Business with an emphasis in Marketing from Arizona State. Starting at the top, so to speak, Mr. Miller’s time at HES began in the field with commercial system solar array installs along with assisting in system design. Shortly thereafter Mr. Miller took on commercial design responsibilities and from there transitioned to Assistant Commercial Project Manager, at which point he earned a Project Management Professional Certificate from the University of San Diego. His knowledge, approach, and focus on providing the best quality systems soon advanced Mr. Miller to his current role as Commercial Project Manager where he oversees every step from inception to completion of commercial solar production, storage, and charging projects.

Charles Nguyen

Project Engineer

Mr. Nguyen grew up in Southern California up to and through earning a Bachelor of Science degree in Industrial Technology with a concentration in Energy and Transportation Technology from CSULA. Post-college and between engagement and wedding, Mr. Nguyen and his fiance split time between California and Arizona; California won out and Mr. Nguyen and now his family of five have planted roots in Southern California. Mr. Nguyen found the solar industry through a college internship, leading to four years as a residential solar system designer. He joined HES Renewables (then HES Solar) in June of 2021 and was impressed by the quality and offerings from a company big enough to do everything yet small enough to keep the personal touch with clients. Today Mr. Nguyen designs and constructs commercial solar systems that maximize their energy production and benefit to the environment. When not planning solar arrays or exceeding Authority Having Jurisdiction and all local building requirements, Mr. Nguyen can be found at a local zoo with his wife and kids or cheering on the Los Angeles Lakers or Arizona Cardinals.

Brad Carbiener

PV Designer II

After growing up in Florida, Texas, and Idaho, Mr. Carbiener moved to Arizona to attend Arizona State University where he earned a Bachelor of Arts in Spanish Linguistics. He has called The Grand Canyon State home ever since. He worked as a site surveyor manager for another solar company and then spent a few years working for Amazon in various roles. Mr. Carbiener joined HES Renewables (then HES Solar) in 2017 as a part-time designer for residential solar systems. He appreciates and took advantage of HES Renewable’s policy of giving employees paths to grow their careers; Mr. Carbiener moved to full time, then jumped from the Residential division to the Commercial division in 2019. He now designs large commercial solar and solar + storage systems. When not designing commercial energy systems, Mr. Carbiener enjoys spending time with his wife and two children and still makes time to travel. His favorite destination so far has been Costa Rica but his wanderlust is always looking for the next adventure.

Zeel Sarang

PV Designer

Mr. Sarang joined HES Renewables after six months at the residential sister company HES Solar. He brought with him a Bachelor in Technology degree in Mechanical Engineering from the National Institute of Technology, Surat, in Gujarat, India as well as a Master of Science degree in Mechanical Engineering (a Renewable Energy system major) at ASU. Prior to joining the HES family, Mr. Sarang volunteered in the EPICS program as ASU to build systems that provided clean energy and water to the Navajo Nation in Arizona before working for a major solar installer in Arizona. Mr. Sarang has a passion for electrical and astronomical physics as well as the Earth, which naturally led him to the renewable energy industry. He has a philosophy that small contributions can lead to big changes, and likens the continued adoption of sustainable energy to a tree growing new branches and leaves to capture more of the sun’s energy as it reaches new heights. When not helping spread the use of green energy, Mr. Sarang spends his time hiking, swimming, playing video games, playing sports, or surfing on the San Diego shoreline.

Chad Boylan

PV Designer

Mr. Boylan joined HES Renewables in early 2024. He brought with him a Bachelor of Science degree from Elon University in North Carolina as well as education experience from the Florida Solar Energy Center (FSEC). Prior to his role at HES Renewables, Mr. Boylan gained in-depth knowledge and understanding of solar components and hardware through previous roles at a solar developer, a racking manufacturer, and an inverter manufacturer. Mr. Boylan is happy to be in a growing industry that also provides altruistic benefits to the world. Mr. Boylan is one of HES Renewables’ few remote employees; he is based in Colorado. In his free time, if you don’t find Mr. Boylan skiing or gardening, he’s likely hiking. Over 100 days in the summer of 2023 he hiked 21 of Colorado’s 58 peaks that surpass 14,000 feet in elevation.

Braulio Aguilera

Project ManageR

Mr. Aguilera grew up in San Diego and came to HES Renewables (then HES Solar) in 2023 with nearly fifteen years of supervisor experience at UPS as well as eight years of solar experience. From his solar experience in the field and as an Operations Manager, combined with the efficiency required in his UPS role, Mr. Aguilera is an expert at project planning and precision execution. He enjoys the challenge that each unique solar project brings and loves to see how the pieces go together best to prevent delays for the customer or the installation crew. Mr. Aguilera was excited to find the positive and professional environment at HES Renewables and now adds to the team’s success with his winning attitude. When not ensuring solar projects are running smoothly you can find Mr. Aguilera hiking, cycling, or playing paintball or board games; he has a collection of over 200 board games.

Charles Mohr

Project Manager

After growing up in Hawaii, Mr. Mohr moved to Southern California for college and has called it home ever since. Mr. Mohr joined HES Renewables in 2023 and brought with him a degree in Renewable Energy Systems from Santa Monica College; he currently also holds an NABCEP certification, is LEED accredited, and as of the summer of 2024 is in the process of testing for his PMP certification as well as applying into the SDSU Construction Management major. Mr. Mohr’s solar experience began in college as a permit runner. He gained a deeper knowledge of solar projects through design and installation roles before joining HES Renewables as a Project Manager. His position has him ensuring optimal value, quality, and safety of each solar, storage, and EV charging station project. Mr. Mohr strives to be the best in all facets of his life, both professionally and personally – just don’t fault him for rooting for sports teams based in Los Angeles rather than San Diego. When not helping his clients and contributing to HES Renewables’ growth, you’ll find Mr. Mohr having fun at one of his kids’ sports events, church, the beach, the river, or while camping.

Josh Jump

Project Manager

Mr. Jump’s professional experience started in training as an electrician where he received his OSHA, scissor-lift, and forklift certifications. A San Diego native, Mr. Jump spent time in New Orleans before returning to San Diego and then joining HES Renewables in early 2024. Prior to that, he gained ten years’ of experience in the solar industry as an installer and then an installation crew foreman. He found his calling in project management, and takes great satisfaction in helping design top-quality solar installations and then seeing them energized to bring renewable energy to the client. He appreciates the positive culture at HES Renewables that emphasizes project quality and also encourages professional growth among its employees. When away from the office, Mr. Jump enjoys writing and learning about new things such as the capabilities of Artificial Intelligence.

Bernie Silva

Quality / Safety Manager

Mr. Silva is a Southern California native who grew up in San Diego. After gaining construction experience and multiple certifications as a structural welder, he came to HES Renewables (then HES Solar) in 2014. His prior construction experience serves him well in commercial site surveying, quality assurance, and safety management. Mr. Silva enjoys his job and loves to see a plan move from blueprint to energy system reality. Mr. Silva came to the solar industry for the stability and growth of renewable energy projects. In his free time he enjoys lowriding; his hobby is creating custom cars. He shows an award-winning car named “Back by Popular Demand.”

Andrew Hickey

Assistant Construction Manager

Mr. Hickey is a San Diego native who joined HES Renewables (then HES Solar) in 2019 with three years of ABC Electrical Trade School education and an OSHA 10 certification. He started at HES Renewables as an installer and worked his way up to the Electrical Foreman position. He takes great pride in the build of a system and strives to make panel and disconnect installations look like artwork. In his new role as Assistant Commercial Construction Manager, Mr. Hickey helps manage five field crews and their job sites. He has set the goal of receiving his J-card before the end of 2023. When not helping HES Renewables with its incredible growth since joining the team, you can find Mr. Hickey riding his dirt bike or camping.

Albert Ongkingco

Service Manager

Mr. Ongkingco brought general construction, commercial property improvement, as well as seven years’ of prior solar experience with him when he joined HES Renewables in early 2023. Mr. Ongkingco, with his business degree and experience leading a utility-scale project in Kauai, Hawaii, now runs the HES Renewables service department. He appreciates the renewable energy industry’s family-like dynamic and is passionate about finding sustainable energy solutions beyond fossil fuels. In addition to providing excellent service to HES Renewables’ clients, Mr. Ongkingco is expanding the commercial solar service offerings to clients that did not engage HES Renewables for their initial solar installation. Outside of work, Mr. Ongkingco is often found restoring or tinkering with cars, attending car shows, or riding his motorcycle or mountain bike; he is also an avid wakeboarder and surfer.

Niko Suarez

Field Manager

Mr. Suarez joined HES Renewables in 2023 with electrical experience including lockout/tagout procedures, arc flash safety, Enphase/SolarEdge battery installation, OSHA 30, and a C10 electrical contractor’s license. Mr. Suarez has lived in San Diego as well as Denton, Texas and now calls San Diego home. In his previous roles, he gained experience as a solar installation forman as well as in solar inspection and service. With his role at HES Renewables, Mr. Suarez takes satisfaction in helping to lower clients’ energy costs through long-term solar service solutions, and is dedicated to quickly dispatching technicians to diagnose and resolve any possible production or monitoring issues. When not at HES Solar, Mr. Suarez can often be found skateboarding, hiking, or scuba diving.

Shannon Ricaud

Human Resources Manager

Ms Ricaud moved to California in her teens and joined the HES Renewables/HES Solar team in 2018. She learned the company and industry and was quick to react and adapt when the Covid-19 shutdowns were enacted then continuously adjusted. Ms. Ricaud became the ‘point person’ for many of the departments and her efforts helped not only facilitate the company’s fast recovery but also support its growth after the reductions to the restrictions. Ms. Ricaud enjoys the employees and takes pride in the rapid growth of both HES Renewables and HES Solar. She holds a degree in art and has a soft place in her heart for dogs.

Karina Garcia

Purchasing Manager

Ms. Garcia came to HES Renewables/HES Solar in 2023 with two years of experience in the solar industry. Born in Mexico, she moved to Oceanside, California at the age of five. Ms. Garcia sought a career in the solar industry because she wanted to make a positive impact. She enjoys the fast pace of her role and the continuing evolution of the solar industry in general. Her position at HES Renewables challenged her to create and implement a purchasing strategy that produced savings that would be reflected in lower project costs to HES Renewable clients. When she’s not looking for cost efficiencies at HES Renewables Ms. Garcia is pursuing her love of travel, local and exotic, or working on creative endeavors such as painting and ceramics.

Pete Peterson

Marketing Manager

Mr. Peterson is a California native with a degree from UC Santa Barbara who enjoys writing, photography, and videography. After over a decade in enthusiast media where he rose to the title of Editor-in-Chief of a print magazine, Mr. Peterson transitioned into marketing content creation and joined HES Renewables (then HES Solar) in 2020 with a year of solar industry experience under his belt. Mr. Peterson hopes to shine a light on the great employees and quality works of HES Renewables to Southern California residents through educational, informational, and occasionally lighthearted images and words. When Mr. Peterson isn’t creating marketing content he enjoys writing novels and riding his dirt bike.

Elizabeth Tremble

Office Manager

Ms. Tremble  joined HES Renewables in 2023. She holds an Associate of Arts Degree in Creative Writing and Certifications in the entire Microsoft Suite. Ms. Tremble’s professional passion lies in promoting clean, green energy and helping individuals and businesses reduce their carbon footprint through solar and energy storage projects. She manages the HES Renewables office. In that role she oversees event planning, travel arrangements, interior design & space planning, facilities management, and also heads the company’s Community Outreach Committee. Ms.Tremble takes pride in contributing to HES Renewables’ remarkable growth. When away from the Kearny Mesa office, she can be found spending time with her three daughters. Originally from Los Angeles, she now resides in San Diego, home to her favorite sports team, the San Diego Padres.

Lisa Lyons

Accounting Manager

Ms. Lyons joined HES Renewables in 2023 as the Accounting Manager with a background in Computer Programming and Accounting. Ms. Lyons grew up in the VA/DC/MD Metropolitan area and moved to California in 2017. Her primary role at HES Renewables is to manage the staff and all functions of the Accounting department. This is her first role at a commercial solar installation company and she takes a special satisfaction in being part of something great. Outside of HES Renewables, Ms. Lyons is working on completing her Yoga Instructor Certificate. She also appreciates spending time with her family and friends, walking her dog, or enjoying the beaches and area around San Diego.

Azela Munguia

Staff Accountant

Ms. Munguia came to HES Renewables in the summer of 2023 with a Bachelor’s Degree in Economics from San Diego State University. A San Diego native, Ms. Munguia gained four years of professional accounting experience before joining HES Renewables. She enjoys being a part of the solution to the increasing challenge of global warming, and working at a company that has demonstrated strong growth despite challenging industry conditions. At HES Renewables she records daily transactions and increases efficiency with the company’s AR/AP processes. In her spare time, Ms. Munguia enjoys spending time in nature or with her two dachshunds.


We are a San Diego-based solar energy production and energy storage installation company. We have been an energy innovator since 2001 and can handle projects from solar-only arrays to micro-grid solar and storage systems with on-site EV charging stations. 

If you’re looking into the benefits of on-site energy production, energy storage, or EV Charging capability, we’d love to speak with you. We’ll show you how to lower and stabilize energy costs, receive the maximum incentives, open new revenue streams, and gain control over one of the largest expenses of your business or commercial property. 

Click here to be contacted by an HES Renewables representative, or simply dial us at 866-HES-RNEW (866-437-7639).

Robert Laverty

Senior Energy Consultant, Residential

Robert Laverty joined the HES team in the summer of 2018, bringing his ten years of solar design experience and his Bachelor’s degree from the University of Puget Sound with him. Robert is dedicated to finding solutions to help families produce and store electricity in order to reduce their reliance on grid power as well as help reduce their household’s carbon footprint. Robert’s experience as a newspaper editor as well as his involvement with the sustainability-focused Rocky Mountain Institute drives him to constantly seek out innovative ways to meet energy needs through renewable resources as well as helps him share those ideas with Southern California homeowners. When not at work or volunteering time with his church or community, Robert spends time with his wife and two sons or pursues his passion of fly fishing.
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