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    I am often asked about funding energy projects, i will feature time to time articles about different funding models. This is one forum  that has raised billions for cleantech startups for 20 years 

    Over the course of two days, 30 cleantech entrepreneurs made their case for funding at this year’s Industry Growth Forum (IGF) put on by the Energy Department’s National Renewable Laboratory (NREL).


    The hardest thing for folks with new technologies is to find someone to give them money,” said Tom Clark, CEO of the Metro Denver Economic Development Corp. He was a speaker at the event and is a longtime supporter of growing the cleantech sector in Colorado.Finding that someone was the hope, of course, for the entrepreneurs attending the annual IGF, which began in 1995 and has resulted in billions of dollars being pumped into startup and early-stage companies.

    Kate Cheesbrough, assistant director of NREL’s Innovation and Entrepreneurship Center, which produces the IGF, said the event grew out of investors asking the national laboratory about new technologies and entrepreneurs looking for leads about investors. “We wanted to create this forum as a platform to connect these two groups,” she said.

    “This is really fulfilling the mission of the laboratory,” said Bill Farris, NREL’s associate laboratory director for Innovation, Partnering, and Outreach. “We want to see renewable energy technologies from the innovation stage all the way through to large-scale market adoption of those technologies. That’s our primary interest. That’s our mission. These companies can’t get to any appreciable size without the financial resources of others. This is all part of that process.”

    The 30 presenting companies were chosen from a pool of 150 applicants from around the world. A robust review and selection process by an external committee of 80-plus investors and national incubators decided which businesses would be allowed to make presentations. ( see list at end of article)

    Investors Network with Potential Partners

    Photo of a man standing on a stage giving a speech.

    Tim Reeser, president and co-founder of Lightning Hybrids, presents his business case before a panel of investors who served as judges. His company received the top prize, the Best Venture Award, at the conclusion of this year’s Industry Growth Forum. Photo by Pat Corkery, NREL

    The companies selected to participate fit into one of three categories: prototype, pre-commercial, and later-stage. The companies self-identify their category. Entrepreneurs attending have several chances to state their case to potential investors. They can sign up for 15-minute one-on-one meetings with investors in a setting routinely compared to speed dating, and then there are the casual meetings that take place in the hotel’s hallways.

    Companies invited to present are given 10 minutes on a stage in front of a panel of judges and other attendees, and the investors who serve as judges get another 10 minutes to ask questions.

    Example Companies

    Be Power Tech is a Florida-based company that is developing air conditioners that generate electricity and are powered by natural gas, a technology that could reduce carbon emissions and cut the costs of cooling and powering commercial buildings. Last year, the company learned too late of the IGF to apply to present, but its founders came to the IGF anyway in search of funders. Be Power Tech met a venture capital company and eventually closed an undisclosed funding round. This year the company was chosen to return as a presenter. Daniel Betts, CEO of Be Power Tech, said the money didn’t come as a result of a one-on-one session.

    “It happened outside of it,” he said. “It was a matter of meeting someone who knows someone who knows someone. It was a bit serendipitous and based on the networking opportunities provided by the IGF format.”


    As much as the entrepreneurs attending the IGF like being able to network, the potential investors also appreciate the opportunity to participate.

    “I prefer meeting people in person,” said Michael Ware, who has attended the IGF for 15 years. He is managing director of Advance Capital Markets, a private investment firm located in Washington, D.C. “I see a lot of slide decks and everything else like that. I have an opportunity here to do more. I can hear [entrepreneurs’] presentations, see them, meet with them, understand their personalities, and ask them questions.”

    “We met with 10 companies this morning in the one-on-ones, and there are three or four that we’ll go back and have longer conversations with,” said Olushola Ashiru, partner and portfolio manager of New Energy Fund II in New York, and a three-year veteran of the IGF. “This saves us time and helps us hone in on companies of interest.”

    Photo of three men holding a conversation as they sit at a small table.

    Paul Ahrens, president and CEO of CSD Nano, meets with potential investors during one-on-sessions at the Industry Growth Forum. Photo by Pat Corkery, NREL


    The IGF ended with the presentation of three awards chosen by the investor judges. Each of the winning companies will receive legal assistance from Lewis Roca Rothgerber LLP and technical help from NREL. Two prizes were given in the category of Outstanding Venture, to Stone Mountain Technologies Inc. and Sun Number LLC. A Tennessee company, Stone Mountain Technologies is working on heat-pump technology that draws heat from the air. Sun Number, a Colorado firm, has developed an online tool that allows owners of commercial and residential buildings to determine how much energy can potentially be generated by the addition of solar panels. The company’s ability to determine that amount relies in part on NREL’s solar calculator.

    Another Colorado company, Lightning Hybrids, received the top prize—the Best Venture Award. The company can equip a truck or a bus with a technology that takes the energy generated by braking and uses it for acceleration.

    Tim Reeser, president and co-founder of Lightning Hybrids, left with the trophy after six previous years applying to become a presenting company. He attended each of the past seven years, but this was the first time he was chosen to be a presenter.

    “My message to everyone else is don’t give up, because there was a value in coming those six years,” said Reeser, who made his presentation in an eye-catching red three-piece suit. “Each year I got better at telling Lightning Hybrids’ story, looking at how other people told their story. Also, the company matured to a point where the story resonated, where before it didn’t quite resonate with everybody. Some of it’s maturing, some of it’s learning to tell the story better, but a lot of that I learned from being here.”

    After his presentation, Reeser was approached by three potential investors wanting to talk. They weren’t with companies he’d pitched to during the earlier one-on-one session. “This is the first time I met these three. I wouldn’t have met them if I wasn’t here and didn’t have the chance to be here.”

    Funding Levels

    The amount of money entrepreneurs hoped to secure varied. A Utah company called iLumens was asking for $5 million so that it could ramp up production of its prototype energy-saving lightbulbs. Paul Ahrens was after between $2 million and $5 million for his Oregon company, CSD Nano.

    “We’re at that stage where the amount of money we raise determines our growth,” said Ahrens, president and CEO of CSD Nano, an Oregon company that is bringing to market an anti-reflective coating that can be applied to existing solar arrays to increase their efficiency. “With no money, it’s slow growth, organic growth. It’s going to happen. There’s no question what we’re doing is going to occur. People are going to use this. How fast it occurs is a function of how much working capital we have.” CSD Nano has already applied its coating to 3,000 panels at beta sites in Greece, Italy, China, and Portugal.

    Ahrens, who attended the IGF last year and was chosen as a presenter this year, met with 10 potential investors during the one-on-one sessions, with mixed results. He said he was told by some that his pre-revenue company was too early for them to invest in; others said it was too late, that they preferred getting in on the ground floor of a developing technology.

    It was evident at the IGF that an ecosystem has been built up around cleantech entrepreneurs. Representatives from a handful of incubators traveled to Denver, coming from the Northwest (Oregon BEST in Portland), Midwest (Clean Energy Trust in Chicago), and further east (Greentown Labs in Boston). NREL established a relationship with the incubators, who encourage their portfolio startups to apply to the IGF—which also provides a conduit to the other services that NREL can provide to support the growth of their member companies.


    The hardware-focused cleantech incubator Greentown Labs provides resources, network access, and affordable co-working, lab, and event space for startups. Of its 33,000 square feet, about 20,000 is available for building prototypes.

    The incubator houses 40 companies, none of which are in competition with the others, said Mark Vasu, executive vice president at Greentown Labs. “The CEOs meet for dinner, pitch to each other. They share tools, resources, networks, investors, grant-winning ideas. There’s a lot of different aspects to being right there in the trenches with others who are sharing the pain of ‘startup-istan,’ if you will.”

    Five men share the stage at the conclusion of the IGF. Three hold glass trophies.

    Richard Adams, far left, director of NREL’s Innovation and Entrepreneurship Center, and NREL Deputy Lab Director Dana Christensen, far right, with the award winners at the Industry Growth Forum. Michael Garrabrant of Stone Mountain Technologies won an Outstanding Venture Award; Tim Reeser of Lightning Hybrids won the Best Venture Award; and David Hermann of Sun Number won an Outstanding Venture Award. Photo by Pat Corkery, NREL

    The co-founders of Sistine Solar, which presented at the IGF, occupy space in two different cleantech incubators. Senthil Balasubramanian is in Greentown Labs, while Ido Salama is in Urban Future Lab in New York. The two met during orientation week for business school at the Massachusetts Institute of Technology in 2011, and discovered similar outlooks and a similar interest in solar power.

    “We both believe that within our lifetime we have to get to 100% clean energy,” Balasubramanian said. “We think that’s a lofty aspiration that’s worth spending our time on. It’s a passion to see that happen.”

    Sistine Solar is focused on overcoming objections a homeowner association might have to rooftop solar panels. To do this, the startup has created a patent-pending, customizable graphics layer within a solar panel. This layer can bear any image, such as a red Spanish tile pattern meant to match a Spanish tile roof. After the two made their presentation, the judges pointed out areas they should research further, including how the addition of a Sistine Solar film would affect the warranty on the rooftop solar panels.

    “Investors might see things that you might not see,” Salama said. “They have had the benefit of investing in hundreds of different companies.”

    Ryan Wood, founder and CEO of Frontline Aerospace, applied three previous times before he was chosen to make his case this year.

    “Great connections get made here,” Wood said in explaining his interest in attending. He has now attended the forum for four years. Wood’s Colorado company intends to increase the performance of turbine engines while reducing emissions from them.

    “It hasn’t been a problem to do technology development, IP, sales, marketing, building prototypes, proof of concepts,” Wood said. “Those are all fairly straightforward and basic business skills. You’ve got to have enough experience to be able to do those things, but the fundraising is 5 to 10 times harder. Fundraising is the heavy lifting.”

    The 30 companies selected in 2015: 

    Acumentrics/New CO2 Fuels (Massachusetts, USA) –Acumentrics has established profitable conversion of industrial CO2 emissions and waste heat to hydrocarbon fuels through solidstate ionics at over 40% efficiency. 

    Autowatts (Colorado, USA) – Autowatts offers a web-enabled solar sales tool to size, price, finance, and e-contract a system with a local installer, allowing non-solar professionals to easily offer solar to existing clients. 

    Be Power Tech, Inc. (Florida, USA) – Be Power Tech, Inc. is developing an air conditioner that produces electricity and that is powered with natural gas. 

    Biogenic Energy (California, USA) – Biogenic Energy is a California based company dedicated to transforming biomass waste into low carbon fuel for electricity and transportation using a disruptive technology called hydrothermal liquefaction. 

    CSD Nano, Inc. (Oregon, USA) – CSD Nano, Inc. has developed the first and only antireflective coating (ARC) for retrofitting operating solar arrays.

    Design Flux Technologies, LLC (Ohio, USA) – Design Flux Technologies, LLC has developed an embedded software-defined power management system for battery packs and energy storage systems. 

    Dropcountr (California, USA) – Dropcountr uses data analytics, sleek design and mobile apps to communicate water usage and metrics to consumers and utility staff; the Dropcountr software platform helps utilities and their customers save water, money and time. 

    ESS Tech, Inc. (Oregon, USA) – ESS Tech, Inc. has developed an extremely cost-effective energy storage system. The technology combines safe, abundant and non-toxic iron electrolyte with a patent pending flow cell design. 

    Firebee SPC (Washington, USA) – Firebee SPC creates renewable energy for charging phones and LED lights from the heat of cooking in stoves and fires. 

    Frontline Aerospace, Inc. (Colorado, USA) – Frontline Aerospace, Inc. is primarily focused on commercial gas turbine efficiency products for applications on ground based turbines, with secondary expansion into airborne applications. 

    Glucan Biorenewables (Missouri, USA) – Glucan Biorenewables converts aggregated agricultural residues created from existing first generation industries, to high-end chemicals and advanced biomaterials. 

    HOMER Energy (Colorado, USA) – HOMER Energy provides software and services to rapidly identify and assess least-cost solutions for the rapidly growing distributed generation and microgrid markets. 

    InnoSys (Utah, USA) – InnoSys’ Intelligent Lumens (iLumens) seamlessly fuses smart solid state lighting technology with sensor, communication, control, and informatics technologies to create energy-efficient, sustainable, and highly reliable lighting solutions including for both direct replacement and new construction markets. 

    Inventev (Michigan, USA) – Inventev’s Energy SWAT Truck uses the same motors for PHEV mobility to generate power for grid resiliency and avoids jobsite idling…Work Electric, Drive Electric, Generate Electric. 

    Lightning Hybrids (Colorado, USA) – Lightning Hybrids sells and licenses a patented hardware/software system which converts a conventional medium or heavy-duty vehicle into a hydraulic hybrid, reducing emissions by 50% and fuel use by 35%. 

    LiquidCool Solutions (Minnesota, USA) – LiquidCool Solutions has developed a practical, scalable solution for cooling electronics by total immersion in a dielectric fluid. 

    Next Energy Technologies Inc. (California, USA) – Next Energy Technologies has developed transparent energy harvesting coatings for windows that allow architects and building owners to transform windows and glass facades into producers of low-cost, on-site, renewable energy for buildings. 

    OPUS 12 (California, USA) – OPUS 12 is developing an electrochemical device that converts CO2, water, and electricity into valuable fuels and chemicals that are cost-competitive with conventional products. 

    Powerhive (California, USA) – Powerhive offers a custom-built platform to meter and manage renewable microgrids for rural electrification in emerging markets. 

    Sibelloptics (Colorado, USA) – Sibelloptics has created a compact, long-range, all-fiber commercial wind Lidar instrument for wind resource measurement.  Sistine Solar (Massachusetts, USA) – Sistine Solar creates solar panels of any color, pattern or design. 

    Soliculture (California, USA) – Soliculture panels allow growers to generate electricity over crop production with no negative impact on plant growth in a high yield controlled growing environment. 

    Sonne Industries, LLC (Illinois, USA) – Sonne Industries, LLC has developed Light Sentry™, a do-it-yourself, set-it-and-forget-it system that tells an outlet or light switch to power up, dim, and power down when electricity or light is needed. 

    Sourcewater (Massachusetts, USA) – Sourcewater, a spinout from MIT, is the first online exchange for buying, selling, recycling and managing water and water services for oil and gas production. 

    Spectrum (California, USA) – Spectrum is a cloud-based building information modeling software platform for the architecture industry that seamlessly integrates design, sustainability analysis, and energy codes yielding low-cost, energy-efficient buildings. 

    Stone Mountain Technologies, Inc. (Tennessee, USA) – Stone Mountain Technologies is a developer of gas-fired absorption heat pumps for residential and light commercial water and space heating. 

    Sun Number (Colorado, USA) – Sun Number is building solutions based on big data that lower the solar industry’s cost of customer acquisition. 

    Teslatricity (Texas, South Dakota, Florida, USA) – Teslatricity is a LED Lighting Manufacturer and IoT Solution Provider offering LED-based lighting products that are less expensive, better, more efficient, recyclable, unbreakable and smarter than other products in the marketplace. 

    Triea Technologies (Maryland, USA) – Triea’s Biomass-HRS™ (Heat Recovery System) captures and extracts heat from composting animal manure and organic matter, processes it, and then provides it to meet the heating requirements of animal grow-out houses in the poultry and swine markets.

    VG SmartGlass (Illinois, USA) – With the VG SmartGlass technology, a user can make any window go clear to dark without electricity to control for privacy, glare, and energy control.

    Learn more about the Industry Growth Forum.

    Underwater Compressed Air Energy Storage System
    NREL estimates economically viable US renewable generation
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