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Ipsun Solar

Solar Installer in Virginia, Washington DC, Maryland

  • Residential
    • Installation
    • Battery Storage
    • Solar Maintenance
    • How Much Does Solar Cost?
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    • Northern Virginia
    • Maryland
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    • We Are A B-Corp
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Company Overview

Embrace eco-friendly living, save money, and produce your own energy with Ipsun Solar’s custom solar panel solutions for residential properties.

We provide a seamless transition to solar energy, enabling you to secure low electricity costs, benefit from a cleaner energy source, and boost your property’s value. Choose Ipsun Solar and transform the way you power your life.

Who We Are

Ipsun Solar specializes in residential and commercial solar installations across Northern Virginia, Washington D.C., and Maryland.

Co-founded by an electro-mechanical engineer who helped design one of MIT’s first solar cars, our company offers flexible, personalized solutions instead of a one-size-fits-all approach, ensuring you receive the custom solar experience you deserve.

Our Mission

To fight climate change by installing as many solar panels as we can.

Our Values

Driven by climate solutions, energy resilience, and community impact, our fast-growing B Corp thrives on integrity, honesty, and passion for our work.

Our Services and Territory

Ipsun Solar is a full-service solar provider specializing in customized residential and commercial solar installations in Northern Virginia, Washington D.C., and Maryland. Because we are a local company, based in Fairfax, Virginia, we understand the unique architecture, clientele, and solar permitting & policy landscape of the DMV.

We provide you with a tailored solution for your energy goals, offering the highest quality American-made solar panels, and three battery brands to fit your specific needs.

Everyone you meet at Ipsun is an employee of our company who receives health care, paid time off, and other benefits to ensure we have staff who stay with us, so they can bring you their years of expertise. This skilled, supportive team will handle your custom solar design, permitting, installation, inspection, interconnection, SREC registration, and lifetime support & maintenance. We’re also here to help you with your HOA approvals, tax credit paperwork, and other paperwork needed for local incentives.

Meet the team fueling
solar solutions.

Herve Billiet Headshot 2022

Herve Billiet

Co-founder and CEO

Herve is a renewable energy veteran and a Master Electrician. He designed the first Belgian solar car when he was 21 years old. Soon after, he was invited by MIT in Boston to advance its sustainable transportation initiatives. Herve then designed and installed his first residential solar system in 2009. After working for a few consulting firms, Accenture among them, the U.S. Department of Energy hired him as a Strategy Consultant on the largest renewable energy projects in the world. He would later join forces with his business partner, Joe Marhamati, to establish Ipsun Solar. Herve grew Ipsun Solar from a small local installer to a major installer in Northern Virginia, Washington DC, and Maryland doing both residential and commercial solar and advocacy for solar. Herve loves building the team of passionate solar enthusiasts.

    Joe Marhamati

    Joe Marhamati

    Co-founder

    Joe has extensive experience in renewable energy project finance and energy efficiency policy development at the highest levels of government. At the White House, he served as an energy adviser to the President’s Chief Sustainability Officer. There he led both the Obama Administration’s Capital Solar Challenge and the President’s Performance Contracting Challenge. He also helped pioneer the deployment of clean energy technologies such as solar, wind, and geothermal through several billion dollars in financing.

      Patrick Cavanaugh Sales Director

      Patrick Cavanaugh

      Director of Sales

      He’s a solar sales expert with more than 8 years in the solar industry in Virginia, North Carolina, and South Carolina. Working with homeowners, businesses, nonprofits, and government, he has helped hundreds of clients lower operating expenses and their carbon footprints. As a solar energy professional, he brings knowledge, experience, and strong values to every renewable energy project he undertakes. He is motivated by a desire to help grow the solar industry and to be a leading member of the renewable energy movement within the community he serves.

        Shannon Killebrew Director of Shared Services

        Shannon Killebrew

        Director of Shared Services

        Shannon Killebrew joined Ipsun Solar in March of 2020. She holds a Bachelor’s Degree in Environmental Studies with a focus in Sustainability. Her love of the outdoors and interest in renewable energy sparked a strong desire to work in the solar industry. Prior to joining Ipsun, she began her career in the industry at a nationwide solar installer with a focus on permitting and inspections. She has many years of customer service experience and enjoys building strong working relationship with outside partners. Her role as the Shared Services Director at Ipsun Solar entails overseeing our Residential projects from design, permitting, inspection, and utility approval over many jurisdictions. She enjoys spending time her with family and pets, spending time outdoors and continuing to learn new technology to fight climate change.

          John Mein Headshot

          John Mein

          Solar Energy Consultant

          John joined Ipsun Solar in March of 2020. His educational background includes a Master’s of Natural Resources Management from the Center for Leadership in Global Sustainability at Virginia Tech and a Bachelor’s in Sustainable Studies from Colorado Mountain College. John entered the Solar Industry in 2018 by completing a summer residency program at Solar Energy International and managing a solar installation company on the Western Slope of Colorado. He is passionate about family, food, and freedom, especially the type of freedom offered by solar energy. John previously worked for a ski area specializing in helicopter lifts to the top of the hill. He feels guilty about all the carbon emissions from his frivolous days in the mountains and seeks atonement by providing solar energy to all. Contact him at john.mein@ipsunsolar.com to help him clear his guilty conscience.

            Maris Burns Ipsun Inside Sales

            Maris Burns

            Solar Energy Consultant

            Maris joined Ipsun Solar in November of 2019. She is a graduate of George Washington University, where she studied Political Science. She has a particular interest in environmental policy and specializes in client relations and sales. She has previously worked as a constituent correspondence intern for former US Senator Bill Nelson and has years of experience in the service industry. She loves helping homeowners take the leap to go solar!

              Dave Horan Profile Picture

              Dave Horan

              Solar Energy Consultant

              Dave joined Ipsun in June 2020 as a solar installer. He progressed to project manager and director of residential solar before transitioning to the sales side. Before Ipsun Solar, Dave ran his own design-build company installing aerial adventure parks and really long zip lines all around the country and even spent time as a licensed financial advisor. Dave may be the only solar professional you talk to who has carried panels up a three-story ladder, pulled wire in a 110-degree attic, and led an install crew. He can present solar options in clear, jargon-free terms–or he’s happy to get technical and nerd out about conversion ratios, panel degradation, and how battery storage works. Reach out at dave.horan@ipsunsolar.com.

                Jane Nester

                Jane Nester

                Solar Support Specialist

                Jane has her bachelor’s degree in Earth and Planetary Sciences from Johns Hopkins University. Her coursework combined with a lifelong love of the outdoors has both fostered an interest in renewable energy and launched her career in solar with Ipsun. She is passionate about helping people unlock the potential of our sun while benefiting our environment.

                  Heather Albarano

                  Heather Albarano

                  Human Resources Specialist

                  Heather Albarano has devoted her entire career to optimizing HR operations, energizing cross-functional teams, and achieving new levels of organizational success. In leading major HR initiatives for diverse organizations, she has consistently boosted staff performance, improved employee satisfaction, and developed top-performing leadership teams. Heather has over 15 years of experience in Human Resources, including establishing best business practices while building out the HR function.  She has a passion for sustainability and recently supported the Solar and Microgrid divisions at a Fortune 500 company.

                    Al Larsen Headshot

                    Al Larsen

                    Senior Advisor for Governmental and Legal Affairs

                    Al has been a lawyer in private practice, focusing on energy and environmental matters, In Portland OR and Washington DC. His practice included legislative and administrative proceedings, as well as litigation, and project development, primarily wind and hydroelectric. He left private practice to join a West Coast wind energy company, where he was Sr. VP for governmental affairs and business development, and the deputy General Counsel.  Most recently he was General Counsel and head of Congressional and public affairs for the Inspector General at the Environmental Protection Agency.

                      Bobby Monacella

                      Bobby Monacella

                      Marketing Manager

                      Bobby works on communications and marketing, helping to tell Ipsun’s story, and show how going solar with Ipsun is a great way to join the renewable energy revolution. She comes to us with many years of PR and marketing experience from both the outdoor industry and the Virginia environmental and climate community. Bobby is on the national leadership team of Mothers Out Front and is co-leader of her local MOF group in Fairfax, VA. MOF is a non-profit group that advocates for a livable climate for our kids. Bobby loves that her day job and her volunteer work go hand-in-hand, and feels strongly that working in solar energy is the best way to help her kids have a bright future.

                        Taryn Hightower Profile Picture

                        Taryn Hightower

                        Inside Sales

                        Taryn joined Ipsun Solar in June of 2022. She received her bachelor’s degree in Human Communication from the University of Central Florida. Her previous experience includes working with brands to boost their sales and help them build client relationships. She is passionate about helping others invest in renewable energy for future generations to come!

                          Lisa Dolan Headshot

                          Lisa Dolan

                          Inside Sales

                          Lisa has a bachelor’s degree in Finance from Suffolk University in Boston, MA. Before joining Ipsun she worked to attain federal grants for infrastructure improvements throughout the US providing improved water systems, better living conditions, help with homelessness, and internet availability. Her interest in renewable energy lies in providing healthier and cleaner living options now and for generations to come. She enjoys communicating with individuals and listening to their stories and helping them attain the quality of life they desire. My hope is to provide and motivate individuals with the tools needed to create a more sustainable, cleaner, and healthier environment. I strive to learn something new every day. As a parent, I encourage my kids to do the same. Life is a culmination of teachable moments and knowledge is good power. Like solar energy!!

                            Pickle the solar wonderdog

                            Pickle

                            Chief Security Officer

                            Pickle hails from North Carolina and has been part of the Ipsun family since 2017. His duties include guarding the office, begging for treats and morning zoomies.

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                              Our team of solar experts is here to help you harness the power of the sun with a custom solar panel system designed for your Northern Virginia, Maryland, or DC home. From start to finish, we make the process simple and hassle-free, ensuring that you can start enjoying the benefits of solar energy as soon as possible.

                              Take the first step towards a brighter, more sustainable future for you and your family.

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                              DC Office
                              1201 Connecticut Ave NW
                              6th Floor
                              Washington, DC 20036
                              Virginia Office and Warehouse Showroom
                              3171 Spring St Suite C
                              Fairfax, Virginia 22031
                              +1 (703) 249-6594
                              info@ipsunsolar.com

                              Services

                              • Battery Storage
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                              • How Much Does Solar Cost?
                              • Solar Maintenance

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                              Google Rating
                              4.9
                              Ipsun Solar
                              Ipsun Solar
                              4.9
                              Mary Weddle
                              20:07 28 Nov 22
                              Ipsun Solar installed our solar panels, and it was the right decision for many reasons. It was easy to work with the company - from sales to installation and beyond. We have had the panels for some time now, and yet the Ipsun team continues to monitor them to ensure each is working properly. We receive regular reports of the energy generated, and our electric bills have gone down dramatically! The team members are professional, responsive, and caring. We highly recommend Ipsun for their help in making a good decision about a solid investment with a great return and for their ongoing support.
                              Allan Needell
                              21:10 23 Nov 22
                              Ipson Solar worked with me and a roofing company to coordinate removal of an older obsolete system, roof preparation, and installation of a new system. All went well and on schedule and I am completely satisfied with the result.
                              Mark H
                              20:31 14 Dec 22
                              Ipsun was great to work with setting up my Solar array. Most importantly, they've been great about upkeep an maintenance in the years since I've had it installed. They came out to fix some of the wiring when a critter ate through it and repaired the critter guard too.I just wish I had a bigger roof so I could get more kW.
                              Mark Elion
                              16:10 20 Oct 22
                              I used Ipsun Solar for my system and batteries. It has been a very difficult process with many delays and mistakes. I would recommend choosing another installer. You are stuck with the installer for the life of the system. Make sure you pick a good one.I signed with them in January 2022 and was sold on the idea of an operational system in 4 months. They said because they were in a co-op they could do things quicker and in a more labor friendly way (B corp). It’s been 10+ months and my system has not operated at 100% (didn’t operate at all for 3.5 months after delayed July installation).There have been many delays and mistakes directly attributable to Ipsun. It seems like the company does not communicate with itself (or it’s customers).They will promise amazing costumer service, but they under deliver. They will promise they have access to batteries and there will be no delays, but then there are equipment and labor delays.They will install your system and forget that it doesn’t work leaving you sitting for months asking for a fix. But, one thing they will do is attempt to collect payment for a system that doesn’t work (over and over and over). They will send workers out to do nothing, or to repeat completed tasks (over and over) because they have not been told a previous worker did it.You’d think a manager would have reached out to me by now. Nope.
                              Kem Clawson
                              18:04 01 Nov 22
                              After thinking about adding solar to our home, I finally got serious about it last spring. I contacted 5 firms and had a wide range of experience- not all good. IPSUN emerged as my solid choice. Knowledgeable sales rep, flexible, and not high pressure. I was further pleased by their engineering staff and the final solution. And then a very smooth installation day. Plus, this company is a strong advocate for solar energy and climate action. We are so pleased we selected IPSUN.
                              Ed Masuoka
                              17:46 28 Nov 22
                              Ipsun Solar did an excellent job in every aspect of getting our 48 kilowatt solar panel system from the initial planning through permitting and installation. Their support was great and the system is performing flawlessly.
                              Travis Kallman
                              19:36 21 Dec 20
                              I just wanted to leave a quick review and say that Ipsun has been great to work with. From the very beginning, they were communicative and walked me through every step. Although COVID made everything a bit slower and more difficult, I basically got to sit back and let them take care of everything, which they did. When the time came for the install, the team was very quick, professional, and did a clean job, which looks great. I would not hesitate to recommend Ipsun and I am looking forward to cranking out the kilowatts.
                              Dawson Wu
                              03:41 10 Jun 23
                              Great and professional services, including consultation and installation! Our solar panels launched about a month ago. The Ipsun app provides sufficient information for me to check power production. I truly recommend to go solar with Ipsun Solar!
                              Marynelle Losin
                              17:11 02 Apr 23
                              Ipsun solar was an outstanding company to work with. Every person from start to finish was enthusiastic, expert, easy to contact, very helpful, and truly professional. We would recommend this company eagerly and without hesitation!
                              David Best
                              14:27 14 Dec 22
                              Ipsun Solar is the best Solar provider in Virginia. I have had my system in rfor a little over a year and could not be happier with the results it provides. My average bill is about $7.50 a month during most of the year. The Enphase equipment is excellent and their program provides the ability to follow on-going collection from the panels. I recommend IPSUN to anyone who wants Solar on their home.
                              Bobby Singh
                              21:22 10 May 23
                              Mr. James at ipsun solar was more than fantastic to work with. Friendly, fast, easy processes made working with him and this company an absolute pleasure. 10/10 would recommend him to anyone who is interested in anything solar.
                              Phil Roth
                              23:13 20 Jun 23
                              I work for the manufacturer of a component that Ipsun utilizes in some of their installations. Ipsun has taken full advantage of all of our training materials, courses, design support, tech support and sales support. Ipsun consistently produces flawless installations of our product because their team took the time to learn all of our best practices.Installers get a lot of love from their clients but, speaking as a representative of a company that Ipsun is a client of, they deserve credit for their due diligence from start to finish.I work with solar installers in every part of the country and this team really stands out!
                              Amy MacNeille
                              16:44 23 Jun 23
                              Working with Ipsun Solar on a large residential project in Maryland was amazing. Every step, from planning to completion, was organized and communicated clearly. There were no surprise invoices and they handled all utility permitting for us. Their app shows all real-time functionality of solar panels and they provided all docs needed for the tax incentives come tax time. Install itself was a breeze - just a few days for a very large home. 5 stars!
                              Alan Worden
                              20:27 23 Jun 23
                              Ipsun was FANTASTIC. I have undertaken dozens of construction projects. Ipsun was absolutely top of the list. Every person was great, friendly, smart, and totally professional. They are a great firm. Don't hesitate to use them!
                              Brian Miller
                              16:42 20 Jun 23
                              Of all the companies I talked to about my solar installation, Ipsun was head and shoulders above the rest in terms of clarity, openness, and thoroughness. The install went smoothly and we love being solar-powered!
                              Peg Butner
                              19:58 31 Jul 23
                              Everyone, from the very beginning of discussing the project to the final installation, was wonderful to work with. The people who explained the assessment of our house for solar were very knowledgeable and answered any and all questions. The installers were courteous, also answered our questions, and were very professional in their work. I just can't say enough good things about Ipsun Solar. We were thrilled when we were able to "flip the switch" and use the sun for our power.
                              Jim Strang
                              23:50 07 Sep 23
                              We had a great experience with Ipsun Solar. The goal was to generate all of our power from the solar panels and have whole home backup when the grid went down. I was very particular where the equipment went, batteries, solar panels, and control equipment. They were able install all of the components where they were not visible from the street. The team at Ipsun Solar were very patient answering all of our questions and concerns. The crew worked together and got the installation up and running over a four-day window. Ipsun delivered what they promised! The system has now been operating for eight months. No power bills and whole home backup. We’ve lost our power several times in the past six months and it’s a seamless switchover. They listen to the customer. They have the experience and knowledge to deliver a system that meets the needs of the homeowner. Many Thanks to the Ipsun Solar team.
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