Best Solar Energy Companies in North Carolina, United States
The 57 best Solar Energy companies in North Carolina, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Pine Gate Renewables.
Our analysis of 50 Solar Energy companies
$17.8b in tracked funding; 84% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Solar Energy companies in North Carolina
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Pine Gate Renewables Developer of utility-scale solar and energy storage projects 60Funding top 14%Talent top 38%Growth top 45%Market top 46% All 7 signals ▾Fundingtop 14% Talenttop 38% Growthtop 45% Markettop 46% Techtop 49% Newstop 50% Globalbottom 39% Funding: Raised $1.1B across 5 rounds · 5 rounds over 4 yrs (1.2/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 60/100 | $1.1B | 20 mo ago | Series E | James Luster Co-Founder | 2016 | WordPressApple iCloud MailMicrosoft 365+25 | — | — |
| 2 | Strata Clean Energy Online platform offering solar-based energy storage solutions | $450M | 32 mo ago | Late Stage | Markus Wilhelm Founder & CEO | 2008 | WordPress Block EditorwpBakeryWordPress+32 | — | 1 expansion |
| 3 | ClearGen Provider of solar financing services | $250M | 69 mo ago | Funding Raised | Collin Franceschi Co-Founder & CDO | 2020 | — | — | 1 partnership |
| 4 | Heelstone Energy Operator of large-scale solar PV plants | $175M | 40 mo ago | Acquired | Will Owens CEO & President | 2012 | — | — | 2 job openings · 1 award |
| 5 | Modern Energy VC firm focused on investing in energy based technologies 55Innovation top 20%Talent top 23%Product top 32%Funding top 42% All 8 signals ▾Innovationtop 20% Talenttop 23% Producttop 32% Fundingtop 42% Growthtop 45% Marketbottom 48% Globalbottom 25% Techbottom 24% Innovation: 6 product lines Talent: 10 named leaders on record · 4 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 55/100 | $100M | 72 mo ago | Funding Raised | Benjamin Abram Co-Founder & CEO | 2007 | Concrete CMSPHPBootstrap+11 | — | — |
| 6 | FLS Energy A solar EPC company | $30M | 146 mo ago | Acquired | — | 2006 | — | — | — |
| 7 | Sencera Refrigerant-free heat pumps for efficient, zero-carbon heating and cooling solutions | $19M | 213 mo ago | Series B | Rusty Jewett CEO | 2003 | — | — | — |
| 8 | Innovative Solar Systems Leading solar energy developer building sustainable solar farms for a better world | $15M | 110 mo ago | Series B | John Green CEO | 2011 | WordPressMySQLPHP+17 | — | — |
| 9 | Azuray Technologies Develops power electronic devices | $13M | 192 mo ago | Deadpooled | Ravi Naiknaware Co-Founder and Chief Technology Officer | 2007 | — | 18 patents Distributed power electronics and digital signal processing for renewable energy conversion | — |
| 10 | Koolbridge Solar Designs and develops smart solar products | $2M | 27 mo ago | Seed | Stephen Burnett Co-Founder | 2013 | — | 59 patents Solar inverters and adaptive power distribution for dual‑source, grid‑interactive energy systems | — |
| 11 | Spotlight Solar Beautiful solar structures providing clean energy solutions for outdoor spaces | $225K | 117 mo ago | Seed | Craig Merrigan Co-founder and CEO | 2010 | Squarespace CommerceSquarespaceThree.js+17 | — | — |
Top 12 Solar Energy companies in North Carolina
#1
Series E · Asheville, North Carolina · founded 2016 · 1099 employees$1.1Braised▾
Developer of utility-scale solar and energy storage projects. It focuses on the innovative deployment of clean energy, with extensive experience in the development, financing, construction, and operation of solar and energy storage facilities. It helps achieve renewable energy goals through various clean energy solutions and financial structures.
- Oct 2024Series E$288M
- Apr 2024Series E$650M
- Jan 2024Conventional Debt$150M
- Jun 2022Series D$200M
#2
Late Stage · Durham, North Carolina · founded 2008 · 504 employees$450Mraised▾
Online platform offering solar-based energy storage solutions. It manages all our impacts, not just GHGs. That includes the labor in our supply chain all the way to local water runoff from a project.
- Nov 2023Conventional Debt$300M
- Apr 2021PE$150M
#3
Acquired · Chapel Hill, North Carolina · founded 2012 · 25 employees$175Mraised▾
Heelstone Energy develops, finances, constructs, operates and maintains large-scale solar PV plants. Claims to have a generating capacity of 275MW. Projects include Cedar Farm that generates 6.7MW, Morgan Farm that generates 6.9MW and Granger Farm that generates 3.9MW.
- Mar 2023Conventional Debt$175M
- Aug 2019Series A—
#4
Seed · Wrightsville Beach, North Carolina · founded 2013 · 6 employees$1.7Mraised▾
Koolbridge Solar designs and develops smart solar products. Its first product 'Smart Load Center' is a breaker box uses a micro-controller, that automatically selects the use of electricity from the utility grid, solar panels, batteries, generator and wind power. The company has 3 patents to its name and over 10 patents pending. The company is also developing 'Transformerless Sinewave DC to AC Inverter'.
- Mar 2024Seed$1.8M
- Mar 2023Seed$245K
- Jan 2017Seed$875K
- May 2015Seed$500K
#5
Funding Raised · Charlotte, North Carolina · founded 2020 · 12 employees$250Mraised▾
Provider of solar financing services
- Sep 2020Conventional Debt$250M
#6
Funding Raised · Durham, North Carolina · founded 2007 · 57 employees$100Mraised▾
VC firm focused on investing in energy based technologies
- Jul 2020Conventional Debt$100M
#7
Acquired · Asheville, North Carolina · founded 2006 · 43 employees$30Mraised▾
FLS Energy owns and operates portfolio of solar energy assets throughout the U.S. The company operates throughout the solar energy development process, taking a project from conception to commissioning with in-house system design, engineering, construction, financing and turnkey project development capabilities. The company has developed nearly 100 solar energy projects as of oct 2015.
- May 2014Series B—
- Jan 2014Series B$18M
- Sep 2011Series A$12M
- Aug 2009Grant (prize money)$60K
#8
Series B · Charlotte, North Carolina · founded 2003$19.2Mraised▾
Refrigerant-free heat pumps for efficient, zero-carbon heating and cooling solutions. They provide innovative, environmentally harmless heat pump technology, eliminating harmful refrigerants and reducing carbon emissions. Their patented systems offer a more efficient alternative to traditional vapor-cycle machines, decreasing electrical demand while delivering superior heating and cooling performance. They address the growing global demand for decarbonized HVAC solutions, offering a sustainable path towards Net Zero goals in the building sector. Their technology is designed to combat climate change, reduce energy consumption, and improve grid efficiency, making cooling more sustainable and accessible worldwide. They are focused on providing green heating and cooling systems for a more sustainable future.
- Sep 2008Series B$15.6M
- Apr 2008Series A$3.6M
#9
Series B · Asheville, North Carolina · founded 2011 · 25 employees$14.9Mraised▾
Leading solar energy developer building sustainable solar farms for a better world. The company develops clean, sustainable solar farms, harnessing energy to power homes. With a focus on innovation and efficiency, they are committed to leading the world's transition to solar energy. Their vision is to develop a safe, sustainable world using innovative technology to build clean solar farms. The company values stewardship, teamwork, and diligence, aiming to brighten lives through charitable initiatives and community support. They are dedicated to creating a better world through solar energy development, promoting environmental sustainability and social impact.
- May 2017Series B$14.9M
#10
Deadpooled · Durham, North Carolina · founded 2007 · 32 employees$13Mraised▾
Provider of integrated mixed-signal provisions designed for the transformation of photo-voltaic solar panels. The company's integrated mixed-signal provisions offer solar power electronics to the solar photo-voltaic industry.
#11
Seed · Chapel Hill, North Carolina · founded 2010 · 6 employees$225Kraised▾
Beautiful solar structures providing clean energy solutions for outdoor spaces. The company designs and builds visually appealing solar trees and shelters, making clean energy visible and engaging. They complement hidden sustainability measures, showcasing environmental stewardship. This increases solar energy adoption by making it more prominent. The company aims to help property owners demonstrate environmental care, create dignifying work, and increase clean energy adoption. They are a certified B corporation, meeting standards for positive impact business, transparency, employee and community care, and environment. Their products offer comfort, clean energy, and inspiring design. They focus on architectural structures, solar energy, and environmental stewardship, offering innovative solutions for a sustainable future.
- Sep 2016Seed$225K
#12
Acquired · Charlotte, North Carolina · founded 2010 · 94 employees$50Kraised▾
Renu Energy Solutions provides residential and commercial installation services in North Carolina. Services include design, installation, consultation, engineering, construction, operation, activation, maintenance, servicing and others. Specializes in rooftop PV systems. Also provides tax credits and other financing options.
- Sep 2011Grant (prize money)$50K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Solar Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Solar Photovoltaics is moving in the United States
A read on the academic research around Solar Photovoltaics — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 4,925 United States-affiliated papers.
- National Laboratory of the Rockies258
- National Renewable Energy Laboratory143
- Stanford University111
- Massachusetts Institute of Technology99
- Purdue University West Lafayette97
- Photovoltaic system44→239
- Solar energy26→202
- Renewable energy11→117
- Perovskite (structure)34→124
- Solar cell87→133
- Solar energy32→595
- Photovoltaic system72→593
- Renewable energy13→383
- Solar cell113→259
- Thermal3→116
- Solar energy16→204
- Photovoltaic system22→151
- Renewable energy11→126
- Solar power1→36
- Perovskite (structure)10→43
Where solar pv is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing solar pv patents in the United States
United States solar pv patent filing is cooling — 38,279 filings from 8,000 assignees (2016–2025), led by Sunpower, IBM, DU PONT; annual filings 4713→2618.
- Sunpower2952
- IBM2063
- DU PONT1698
- General Electric1514
- Universal Display1493
- Applied Materials1236
- First Solar1192
- 3M Innovative Properties920
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.