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Energy Monster - Profile & Reviews

Energy Monster is your local green expert when it comes to improving a home’s energy efficiency and comfort. We help homeowners by offering leading edge home performance solutions that save energy, lower utility bills and lead to a more comfortable home.

20 reviews

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  • "Let the sun shine! We're ready!"

    Reviewed Feb 11, 2021
    "Let the sun shine! We're ready!"

    Reviewed Feb 11, 2021

    The guys at Energy Monster did a great job. They were polite, professional, and answered all my questions and concerns. They took care of a needed carpentry job in the attic, a knee wall, at no extra charge, as well as the building permits, and provided the documents needed to get the state and federal tax breaks. The whole process took longer than I expected, but a big part was waiting for Eversource to connect my system to the grid. But all in all, it was a great experience.

  • "Top notch customer service from start to finish"

    Reviewed Jan 22, 2021
    "Top notch customer service from start to finish"

    Reviewed Jan 22, 2021

    My Husband and I have been interested in going solar for some time. We have done some research on what we were looking for and looked into a few different solar companies. In the end we wanted someone that is local and that will be around for more than a couple years unlike the bigger companies that seem to keep closing their doors. We had the privilege on working with Kevin Markey. He is very knowledgeable, quick to respond and very attentive to what we were looking for. He sent over the proposal and met all of our requirements (my husband is very picky). The whole process was very smooth. From the initial site visit to final inspections all that were involved were very professional, courteous, and made us feel safe during these questionable times (covid). I would HIGHLY recommend Energy Monster to anyone thats looking for a company that will be there answering ALL your questions from start to finish.

  • "Do not take this company"

    Reviewed Sep 22, 2020

    Signed the contract 5 months ago and still no operational solar panels. Took two months just to get the panels up. Now the building department will not pass the inspection for various reasons. The person who was working on my job quit and left the company so looks like be up to year or more before I can get the panels operational. Save your time and money and go with a trusted company.

  • "Extremely happy with our choice of going solar with The Energy Monster"

    Reviewed Jul 21, 2020
    "Extremely happy with our choice of going solar with The Energy Monster"

    Reviewed Jul 21, 2020

    We got our system installed about 5 months ago and from the initial sales call to the panels on our roof, everything has been perfection. Our sales representative Kevin went above and beyond to answer all of our questions, address all of our concerns and give us various quotes to match our financial preferences.
    I would highly recommend Energy Monster to anyone who is looking to go green and solar.

  • "Thank you Energy Monster!"

    Reviewed Jul 16, 2020

    Very pleased with Energy Monster and my 7.28kW system they installed a few weeks ago! The whole process went smoothly and i would definitely recommend them to friends and family looking for Solar!

    Thanks again Dan & the Energy Monster Team!

  • "Great Company!"

    Reviewed Jul 16, 2020

    I had a 11.58 kW system installed by Energy Monster. The whole team was knowledgeable and educated me in the process of going solar. They walked me through step by step and addressed any issues in a timely manner. Highly recommend!

  • "Couldn't be Happier"

    Reviewed Jul 16, 2020

    From start to finish the team at energy monster was knowledgeable and quick to respond to all my questions and concerns. My project was not even pushed back due to the covid19 pandemic. This team pushed through all permits and interconnections documents as fast as possible. Kyle Johnson, the project coordinator, was my go to guy for the whole process. Kudos to him and his team! Install was perfect! Truly couldn't be happier!

  • "Great People, Very Knowledgeable"

    Reviewed Jul 16, 2020
    "Great People, Very Knowledgeable"

    Reviewed Jul 16, 2020

    I bought a new REC Solar panel system from Dan. Him and his team are very helpful and the most knowledgeable between the 5 other sales people I've dealt with. Lots of misinformation out there, beware of other companies and do your research! Glad I went with Energy Monster, will be referring my neighbors.

  • "Awesome"

    Reviewed Nov 19, 2019

    Reviewed Nov 19, 2019

    They responded to every question I had immediately, I accepted their quote while most of the other companies had not even returned my requests....You won't be disappointed with their customer service!!!

  • "Solar Panels"

    Reviewed Sep 16, 2019
    "Solar Panels"

    Reviewed Sep 16, 2019

    I just want to thank Energy Monster and the staff for the installation of my home solar panels. From the quote, and to all of the staff, and especially to Dan and his professional team, you have made this project enjoyable and myself a very happy customer. I would highly recommend anyone looking to go solar to choose this company. Every minute question from the design to the finance to the installation was answered! Looking forward to saving money in the future.

  • "Endorsement"

    Reviewed Feb 10, 2019

    I rarely give 5 star reviews but the sales staff, contractors and engineers at Energy Monster have earned that and more. We recently purchased a solar panel system from Energy Monster for our residence. During the entire process we found everyone to be professional, responsive and most importantly deliver on their promises.
    We are very pleased with the outcome of our installation and have seen the results of our investment not only in our energy bills, but also the energy credits and refunds from the government. Naturally, like most people we were a little skeptical with this venture in the beginning as it is seldom that consumers actually receive what was promised at the time of the sale. That was not the case with Energy Monster.
    We would most heartily endorse and recommend to anyone the services provided by Energy Monster and welcome the opportunity to be used as a reference. We continue to display our “We are saving on our Energy bills” sign on our lawn and will do so until the weather takes it away.
    Thank you all!
    Sincerely, the proud owners of an Energy Monster system

  • "Very Happy With My Solar System"

    Reviewed Dec 31, 2018
    "Very Happy With My Solar System"

    Reviewed Dec 31, 2018

    I evaluated quotes from three PV companies before I placed an order for a 24-panel system. Here are three reasons why I went with Energy Monster: The publicly traded company that I favored first wanted me to sign away my consumer rights, (1) with no such provisions in Energy Monster's contract, (2) a good price and (3) Dan G., the very knowledgeable and dedicated sales manager / project manager / system engineer as the main contact, I felt safe placing my order with Energy Monster.

    During installation a few obstacles had to be overcome, all of which were related to the town's permitting process and required licenses. All that got resolved without incident eventually. The installation crew – Chris B. (Master Electrician) and Brandon T. – did an outstanding job installing the solar system. It passed all inspections with flying colors. There were no start-up problems.

    In summary: Energy Monster's pricing was good and they selected first tier 1 solar panels and inverters. Work dedication, workmanship, project management and technical expertise were outstanding. I like that no electric cables are visible. Energy Monster used a roof penetrating feedthrough, which is located underneath the panels. It was tested thoroughly during the torrential rainstorms in the months following the installation. Not a single drop of water was leaking through.

    Since August 1, 2018 my PV system produces energy. During the 5 months till the end of the year, I harvested 2,936 kWh. I live in Milford, NH. I have 24 LG 320Watt NeON2 panels with Enphase micro inverters. I am very happy with the solar system.

  • "right cost and schedule"

    Reviewed Nov 21, 2018

    Before I make a decision to install solar panels in my house, I had a few quotation. The Energy Monster gave me the most competitive price with the most advanced LG-365 panel. Also when they plan and design the panel location, there always have been discussions with me, as such the panels were installed exactly what I wanted. After that, the installation and inspections were carried out as scheduled in a professional manner. Thank you!!!!

  • "38-panel System and a passionate team"

    Reviewed Oct 29, 2018
    "38-panel System and a passionate team"

    Reviewed Oct 29, 2018

    Tired of getting gouged by ever-inflating electricity and propane prices, we decided to go solar and chose EnergyMonster as our partner.

    I won't ding EM on a star for this but we were a bit disheartened when the installation didn't begin until months after the contract was signed so we missed out on a summer's worth of solar production. In every other regard, however, EnergyMonster didn't disappoint.

    The engineer on our project was very insightful, tech savvy, and up-to-date on all things solar. He was also involved in the sales process which was valuable to both myself and EM.

    Typical Solar companies lack in this regard as they just send out pitch-men with a script. Dan G. is at top of the top of his class and was able to address each and every concern.

    A team of just two, very hardworking, individuals performed the 38-panel installation in a little over a week. They were very kind, courteous, and worked around our schedule.

    The electrical work was phenomena: extremely clean, organized, and tightly-knit.

    Overall, the EnergyMonster team is comprised of down-to-earth people which is very refreshing these days. Additionally, EM provides the latest and greatest technology which others do not (despite what they may pitch to you).

    I would highly recommend over competing companies such as Tesla/Solar City (the Wal-Mart of Solar) as these guys truly know their stuff and remain passionate.

  • "Easy, quick and responsive"

    Reviewed Oct 24, 2018

    Dan (Systems Engineer) and Lyle (Installer) were professional, easy to work with and responded to every question within minutes. System was installed quickly and without any hiccups. All arrangements with NGrid and my town were handled directly by Energy Monster. The application and installation process was described and completed transparently. The panels look terrific on my roof! I would recommend that if you are shopping around for solar you give Energy Monster a call and put your mind at ease.

  • "Clean install"

    Reviewed Oct 24, 2018

    Dan was very helpful, guided us through the whole process. Things went a little slow due to the high demand for people trying to get in before the end of the SREC program, but we were always kept up to date, and they also helped put us in touch with other contractors for related work on the roof to help with coordination -- all of which went great. No complaints.

  • "Best Decision!"

    Reviewed Oct 24, 2018

    The process start to finish was easy and well managed. From meeting the engineer, Dan, and the installer - we were kept informed and updated daily. The project area was picked up every evening before the install team left. I would highly recommend Energy Monster.

  • "Excellent experience with Energy Monster."

    Reviewed Oct 24, 2018
    "Excellent experience with Energy Monster."

    Reviewed Oct 24, 2018

    We recently had Energy Monster install solar panels on our house in Needham. Everything went well and our electric meter is happily running backwards.

    I started out knowing little about solar power. I got quotes from several suppliers and went through various design iterations. Dan answered my questions and concerns promptly and we settled on a practical and cost-effective solution. When Chris came out for the site survey he added to my confidence that I had made the right choice. He and Brandon did a very professional, efficient and clean installation. Finally, Dan came to the house for the “commissioning” and to show me the cool software that lets me monitor my system’s performance from anywhere in the world. He flew the company drone to take “sun’s-eye” views of the finished product.

    With Energy Monster I made the right choice financially, technically and practically. I highly recommend them to anyone considering a solar power system

  • "great initial solar info,installation, and follow-up"

    Reviewed Nov 30, 2017
    "great initial solar info,installation, and follow-up"

    Reviewed Nov 30, 2017

    I was impressed with Dan G's outline for solar installation including costs,credits,location of panels, expected efficiency. All these items came to fruition. The installers went out of their way to incorporate concerns about visuals, etc.
    Dan G. was brilliant devising a way for us to upload production data using a hotspot when our internet goes seasonal during the Winter.It's been over a year now, no electric bills, Mass. credits accumulating. Dan still returns my calls!
    I highly recommend Energy Monster. They also did my MassSave audit.

  • "Quality work"

    Reviewed Oct 10, 2017

    After talking with my neighbors I decided to purchase solar. They all leased systems with other companies. I am beyond thankful for my decision to use energy monster. Their sales representative was very informative and very helpful through the process of the installation. Very happy with my experience overall and would have to brag and say I have the best looking roof in the neighborhood.

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With years of residential energy efficiency expertise and local partnerships, Energy Monster will ensure you a successful home efficiency and solar project that will save you energy and money for years to come! All of our employees are Energy Monster employees, nothing is subcontracted out.

  • Installation
  • Energy Auditing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance
  • Energy Efficiency
  • High Efficiency Hot Water
  • High Efficiency HVAC
  • Solar PV
  • Energy Storage
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Energy Monster Headquarters

112087 62nd Street N
Largo, FL
33773 United States

Local Offices (2)

  • 311 Main Street
    Worcester, MA 01608
  • 12087 62nd St N Suite 2
    Largo, FL 33773

Workmanship Warranty

Solar 20 years "Bumper to Bumper" - any components of the solar system, any parts of the home that have been affected by the solar system (Roof, roof penetrations, electrical system, areas that hardware has been mounted / conduit runs).


Certified Sonnen Battery Installer, BPI, Envelope Professional


BPI: 5021229
Envelope Professional: 5021229
Florida Certified Solar Contractor: CVC57085


Business Incorporation: 814696006
NABCEP: Currently getting certified
Electrical: 2615
HIC: 176201


Oxford Insurance Agency / Arcadia Insurance Company, Liability, Workers comp.

States served by Energy Monster

  • Florida FL ,
  • Massachusetts MA ,
  • New Hampshire NH