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Powering the Next Generation

GELF Energy has an exclusive license to use patented technology to repurpose sewage and food waste into clean, renewable electricity and green hydrogen.

This Reg CF offering is made available through StartEngine Capital, LLC. This investment is speculative, illiquid, and involves a high degree of risk, including the possible loss of your entire investment.

$105,021.45 Raised


The market for hydrogen fuel is expected to grow to an estimated $11 trillion. The patented Microbial Energy Device will compete in this rapidly expanding market.*

The Microbial Energy System is a unique technology train that produces green hydrogen by integrating carbon capture, water purification, and waste repurposing technologies with the patented Microbial Energy Device.

We are in various stages of negotiations with national and state agencies for economic development and transportation, local municipalities, and agriculture. There is a broad range of applications and potential customers for this breakthrough technology solution.

*Information from NASDAQ & Grand View Research  (SourceSource)

the pitch

The world needs to transition to clean, renewable energy sources. GELF Energy's mission is to accelerate this transition and make a positive impact on our planet’s environment by developing and commercializing advanced environmental technologies. Our Microbial Energy System uses food and sewage waste that could end up in landfills and waterways, and transforms it into clean hydrogen and renewable electricity. This unique combination of technologies has been developed by a team of twelve award-winning scientists who are experts in the fields of environmental engineering, biotechnology, and wastewater management.   

GELF Energy’s leadership team is made up of highly accomplished scientists, wastewater experts, and experienced business leaders who are committed to advancing the world’s clean energy transition. 

GELF Energy has an exclusive, worldwide license to the intellectual property critical to the operation of the Microbial Energy Device. For additional information regarding the terms of the exclusive license please see the offering memorandum.


Converting Sewage and Food Waste to Green Energy

The waste-to-energy industry uses a process called anaerobic digestion to produce natural gas from sewage and food waste. With our Microbial Energy System, we make it possible to produce commercial electricity and hydrogen from waste at new levels of efficiency without emitting greenhouse gasses and other harmful pollutants. With this round of fundraising, we plan to scale the Microbial Energy System to pilot-stage quantities in an active wastewater treatment plant.  This will demonstrate the amount of renewable electricity and green hydrogen that will be produced to be commercially viable. 

The Problem & Our solution

We Believe We Have Developed a Revolutionary Waste-to-Energy Technology

Today’s Anaerobic Digesters are inefficient, taking 30-60 days to generate natural gas. And, more than half of the waste’s potential energy is left untapped. They also lack carbon capture technology and produce a byproduct called digestate that emits fugitive greenhouse gas and often ends up in landfills.

Our Microbial Energy Device improves the speed and efficiency of anaerobic digestion, producing an estimated 2 to 3 times more electricity in approximately 1/5th of the time. Our design integrates carbon capture, ultrapure water purification, and waste repurposing technologies to produce green hydrogen. Unlike our competitors, with our fully integrated system, we are able to produce multiple forms of renewable energy depending on the customer’s needs, including hydrogen, ammonia, renewable natural gas, and electricity. All of it derived from sewage and food waste.

*The product shown is currently in development and not yet available on the market.

the market & Our Traction

Meeting the Massive Demand for Clean Energy with Key Strategic Alliances

The hydrogen energy market is estimated to be valued at $11 trillion (Source). The energy crisis is hastening a transition to renewable energy, with the International Energy Agency raising its renewables growth estimates by a staggering 76% since 2020 (Source).


The technologies for our Microbial Energy System were developed by a team of twelve award-winning Ph.D. scientists. We are in various stages of negotiations with several major customers, including national and state agencies for economic development and transportation, local municipalities, and agricultural and animal farms. 

We are in the planning phase of creating strategic alliances with Garver Engineering (an engineering and environmental services firm), Hawaii Technology Development Corporation, Hawaii Center for Advanced transportation Technologies and Research Triangle Institute International. Additionally, we are in advanced discussions with several other agencies regarding large-scale implementation of our system.

Why Invest

Building a Greener Future Powered by Waste

We have several strategic alliances, patented technology, and a roadmap of upcoming projects to meet the world’s increasing demand for pollution-reducing renewable energy. Led by a seasoned team with decades of experience in environmental science, wastewater management, engineering, entrepreneurship, and marketing, we provide an opportunity to invest early in a major growing energy sector while making a positive environmental impact on our planet’s future.


5301 Ka Haku Rd., 119a

GELF Energy has an exclusive license to use patented technology to repurpose sewage and food waste into clean, renewable electricity and green hydrogen.


Brett Danson
Brett Danson
Chief Executive Officer, Secretary and Director

Brett Danson is a successful start-up entrepreneur. He started his first company in real estate finance at only 25 years old and successfully ran that company for 20 years growing the company to one of the highest dollar volume brokerages in the U.S. 

His involvement with technology and environmental science began after he nearly died from a bacterial infection contracted after surfing in polluted waters. It took several years to recover, but after he did, he devoted his life to learning how to repurpose waste into energy products solving some of the most difficult environmental challenges facing the world today. His quest to create energy from waste using advanced science resonated with university researchers and scientists whose life's work intersected with Brett's vision.  

During the past seven years, Brett has made it his mission to build an expert science and business team, scale the technologies, and make it a commercially viable energy solution. Using his background in finance and science he developed a financially profitable business model for both waste producers and energy providers. Brett created GELF Energy to bring the Microbial Energy System technology to market while accelerating the transition to clean, green hydrogen from harmful fossil fuels. 

John Sabo
John Sabo
Senior VP, Treasurer and Director

I am a professor of water resources and entrepreneur interested in translating science into sustainability outcomes through public-private partnerships, corporate engagement and innovation ecosystems that include academics and investors. I am an avid fly-fisherman.


GELF Energy Corp.
Jul 8, 2023
$10k - $1.23M
Nonvoting Common Stock

Maximum Number of Shares Offered subject to adjustment for bonus shares

Most Recent Fiscal Year-End

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*Maximum number of shares offered subject to adjustment for bonus shares. See Bonus info below.

Investment Incentives & Bonuses


Friends and Family Early Birds

Invest within the first 72 hours and receive 20% bonus shares

Super Early Bird Bonus

Invest within the first week and receive 15% bonus shares

Early Bird Bonus

Invest within the first three weeks and receive 10% bonus shares


$248+ | Tier 1

Receive access to a private LinkedIn Investor Community

$1,000+ | Tier 2

5% bonus shares

$2,500+ | Tier 3

7% bonus shares

$5,000+ | Tier 4

10% bonus shares

$10,000+ | Tier 5

15% bonus shares

*In order to receive perks from an investment, one must submit a single investment in the same offering that meets the minimum perk requirement. Bonus shares from perks will not be granted if an investor submits multiple investments that, when combined, meet the perk requirement. All perks occur when the offering is completed.

The 10% StartEngine Owners' Bonus

Gelf Energy will offer 10% additional bonus shares for all investments that are committed by investors that are eligible for the StartEngine Crowdfunding Inc. Owner's bonus.

This means eligible StartEngine shareholders will receive a 10% bonus for any shares they purchase in this offering. For example, if you buy 100 shares of Non-Voting Common Stock at $2.00 / share, you will receive 110 shares of Non-Voting Common Stock, meaning you'll own 110 shares for $200. Fractional shares will not be distributed and share bonuses will be determined by rounding down to the nearest whole share.

This 10% Bonus is only valid during the investors' eligibility period. Investors eligible for this bonus will also have priority if they are on a waitlist to invest and the company surpasses its maximum funding goal. They will have the first opportunity to invest should room in the offering become available if prior investments are canceled or fail.

Investors will only receive a single bonus, which will be the highest bonus rate they are eligible for.

Investors will receive the highest single bonus they are eligible for among the bonuses based on the amount invested and time of offering elapsed (if any). Eligible investors will also receive the Owner’s Bonus in addition to the aforementioned bonus.

Irregular Use of Proceeds

The Company will not incur any irregular use of proceeds.


Owners bonus
Stack Owner's Bonus & Rewards!

Members get an extra 10% shares in addition to rewards below!


Multiple investments in an offering cannot be combined to qualify for a larger campaign perk. Get rewarded for investing more into GELF Energy Corp..



LD Freeman

3 months ago

Hello, I like the concept for both renewable energy and to clean waste. So when do you plan to move from R&D to sales? I don't see any revenue for 2020-2022, correct?



awilda TORRES

3 months ago

want to invest in tesla . how can i do it



Felix Vayssieres

7 months ago

Sorry one more question, are the scientists who invented the tech involved in the company? Do you have a CTO or scientist on your team to do R&D and address any problems that may arise when deploying your projects or scaling? Thanks



Felix Vayssieres

7 months ago

Thanks, can you please describe how the Microbial Energy Device's design differs from a standard anaerobic digestor and how that produces better results?



Felix Vayssieres

7 months ago

Hello, 1) Can I get some clarification on your process . If I understand correctly your Microbial Energy Device is an extra-fast anaerobic digester which turns waste to methane. Then you take the methane and burn it to power a hydrogen electrolyzer or do you use methane reformation? You use algae to purify sewer water which you use as the water for making hydrogen. How do you make the ammonia? Haber-Bosch-ing the hydrogen? 2) What parts of the process are covered by the patents? 3) 36% of this company, GELF Energy, is owned by another company you own called GELF Sciences? Why? What does GELF Sciences do? How much of your time do you spend on GELF Energy vs GELF Science? Thanks



W Kim Colich

7 months ago

Hi, So GELF Energy Corp does not own the patents for this promising technology?! What happens if the Owner of this (these) patent(s) decides to NOT renew your license, but rather license their technology to some other firm ("exclusively")? What happens to GELF Energy Corp then? Thanks for clarifying this point. Blessings




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