A Revolution in Energy Storage

Gravity Power is a pre-revenue company developing highly efficient energy storage technology that reduces carbon emissions while being easily scalable for global markets.

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.

$210,864.03 Raised


INNOVATIVE TECHNOLOGY: Our energy storage technology lowers levelized costs and minimizes environmental impacts, leveraging existing fossil fuel industry infrastructure for a cleaner future.

INDUSTRY RELATIONSHIPS: We have key relationships with industry leaders including Stantec, the Robbins Company, and Computerized Analysis & Simulation Ltd to move our product toward commercialization.

EXPERIENCED LEADERSHIP: We are led by a team of experts with decades of experience as innovators in clean energy, engineering, and entrepreneurship.

the pitch

The world needs a scalable clean energy solution. Our energy storage technology enables the widespread adoption of renewable energy while minimizing environmental impact and maximizing efficiency. Gravity Power holds 4 patents across 20 countries, has partnerships with global industry leaders, and is ready to move to commercialization in this $1 trillion market.


Scalable Energy Storage Critical to Stopping Climate Change

We are designing Gravity Power plants to turn unpredictable renewable energy into reliable, peak-period power. We believe that once commercialized, we can increase the value of renewable energy from 3-6¢ (for "as-available" renewable energy or for "base load" resources) to 15-20¢ per KWh (Source). With pumped storage unable to meet the global need for energy storage globally, we are ready to meet the $1 trillion demand for energy storage with our highly efficient and eco-friendly technology. Join us as we build the future of clean energy. 

The Problem & Our solution

Efficient, Eco-Friendly, and Easily Executed

Currently, pumped storage hydroelectric dominates the energy storage market, with 94% of the market (Source). However, pumped storage is increasingly out of reach for customers, as it is difficult and time-consuming to deploy, while being land-inefficient and environmentally controversial. As a result, pumped storage is not being adopted at the necessary scale to meet the market’s needs and "decarbonize" the electric grid.


We are meeting the market demand for energy storage with technology that lowers costs, raises efficiency and minimizes environmental impacts. Gravity Power makes it straightforward to obtain permits and sites, delivering the same compelling customer value proposition as pumped storage while being highly scalable for global adoption. 


the market & Our Traction

Strong Partnerships in a Fast-Growing Industry

The demand for energy storage is projected to be over $1 trillion, driven primarily by the rapidly worsening climate crisis (Source). The recently passed Bipartisan Infrastructure Law contains $505 million in funding to support the development and deployment of energy storage technologies (Source).



We have formed key strategic partnerships with companies such as Stantec, one of the top 10 engineering firms worldwide. Our technology has been verified by numerous third party experts, including Stantec, BabEng, and Hochtief. Most recently, we have agreed to conduct a joint R&D program with the Robbins Company, the pioneer of the tunnel boring machine. 

Global Patent Protection

Why Invest

Join the Energy Solution of the Future

We developed vetted technology that promises to create a more efficient, implementable, and eco-friendly future for renewable energy. This raise is part of our initiative to commercialize the technology through detailed engineering and a demonstration project. With a clear need in the $1 trillion market for a better solution, with our patented technology, and with key strategic partnerships in place, we are ready to address today’s energy problems with Gravity Power. 


945 Ward Drive, #28
Santa Barbara, CA 93101

Gravity Power is a pre-revenue company developing highly efficient energy storage technology that reduces carbon emissions while being easily scalable for global markets.


Steve Taber
Steve Taber
Chairman & CEO, Serial Entrepreneur in Renewable Energy
A leading developer of energy efficiency and renewable energy projects throughout the world. Led the industry in numerous areas of innovation, including business models, renewable energy technologies, and financing techniques.
Robert B. Weisenmiller, Ph.D.
Robert B. Weisenmiller, Ph.D.
Former Chair of the California Energy Commission and one of the world’s leading voices on energy. Helped shape California’s pioneering energy policies, Co-founded and managed MRW & Associates, to assist organizations in strategic planning, policy development, energy market analysis and regulation, power pricing for qualifying facility projects, marginal cost analysis, rate design, and implication of utility mergers.
Jim Fiske

Jim Fiske

CTO, Serial Entrepreneur, Technologist, Inventor

Experienced in digital image processing hardware design, digital electronics, computer design, CAD software development, electro-mechanical system design, maglev transportation, energy storage, and low-cost space launch.
Thomas Mason

Thomas Mason

Board Member

President of CalEnergy in mid 1990s and EVP of Calpine Corp and President of Calpine Power Company from 1999 to 2006. Constructed and acquired power plants through that period, operating 92 gas fired and geothermal power plants in 2006.
Globally Recognized Experts

Globally Recognized Experts

Advisory Board

Gravity Power has also built a strong advisory board, including globally recognized experts in energy markets, regulatory policies, control theory, system analysis, generation scheduling and control, power grid control, hydroelectric systems engineering, underground engineering and construction, and sealing technologies. 


Gravity Power
Dec. 12, 2023 at 7:59 AM UTC
$10k - $1.23M
Series B-2 Preferred Stock

Maximum Number of Shares Offered subject to adjustment for bonus shares

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

Investment Incentives & Bonuses*

Loyalty Incentives:

Friends of Gravity Power: If you reserved shares before the offering opened and invest at least $250 and receive 10% bonus shares

Time-Based Incentives:

Very Super Early Bird Bonus: Invest at least $250 within the first 48 hours and receive 40% bonus shares

Super Early Bird Bonus: Invest at least $250 within the first week and receive 20% bonus shares

Early Bird Bonus: Invest at least $250 within the first month and receive 10% bonus shares

Amount-Based Incentives:

Invest $500+ and receive 5% Bonus Shares. 

Invest $1,000+ and receive 10% Bonus Shares. 

Invest $2,500+ and receive 15% Bonus Shares. 

Invest $5,000+ and receive 20% Bonus Shares. 

Invest $10,000+ and receive 30% Bonus Shares. 

Invest $20,000+ and receive 35% Bonus Shares. 

Invest $30,000+ and receive 40% Bonus Shares. 

Invest $40,000+ and receive 50% 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.

Crowdfunding investments made through a self-directed IRA cannot receive non-bonus share perks due to tax laws. The Internal Revenue Service (IRS) prohibits self-dealing transactions in which the investor receives an immediate, personal financial gain on investments owned by their retirement account. As a result, an investor must refuse those non-bonus share perks because they would be receiving a benefit from their IRA account.

The 10% StartEngine Owners' Bonus

Gravity Power 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 Preferred B-2 Stock at $ 0.75 / share, you will receive 110 shares of Preferred B-2 Stock, meaning you'll own 110 shares for $75. 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 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 might incur Irregular Use of Proceeds that may include but are not limited to the following over $10,000: Vendor payments. Salary payments made to one’s self, a friend or relative.


Article Image

Local Start-up Gravity Power Initiates Crowd-funding Campaign

Article Image
Bloomberg New Energy Finance (NEF)

Global Energy Market to Grow 15-Fold by 2030

Article Image
Canary Media

Investors Are Pouring Money Into Grid Storage Startups

Article Image
Utility Dive

Global Energy Storage Investment Jumped 55% in 2022 as Funds Shifted From Private Equity to Public Markets



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


Stack Owner's Bonus & Rewards!

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

Owners bonus

Owner’s Bonus

Owner’s Bonus Members earn 10% bonus shares on top of this and all eligible investments for an entire year. Not a member? Sign up at checkout ($275/year).


Tier 1

Invest $500+ and receive 5% Bonus Shares.


Tier 2

Invest $1,000+ and receive 10% Bonus Shares.


Tier 3

Invest $2,500+ and receive 15% Bonus Shares.


Tier 4

Invest $5,000+ and receive 20% Bonus Shares.


Tier 5

Invest $10,000+ and receive 30% Bonus Shares.


Tier 6

Invest $20,000+ and receive 35% Bonus Shares.


Tier 7

Invest $30,000+ and receive 40% Bonus Shares.


Tier 8

Invest $40,000+ and receive 50% Bonus Shares.



Raymond LeVesque

23 days ago

The Kauai cooperative electricity company may be interested in your technology as they seek longer-term means to store solar energy to further reduce their dependence on fossil fuels. See about 80% through this article:



Jacqueline Delgado

a month ago

There is also the oldest energy infrastructure in the country. That’s another target market. New England has the first energy infrastructure in the country. Therefore, it’s the oldest. I love the energy market. That’s why I also sell Solar as my side gig. Rhode Island wants 80% of the residents on renewable energy by 2030 and 100% on renewable energy by 2040. The 5 states are buying energy from Canada and selling it to us because our infrastructure can’t keep up. We even have to pay a small fee because we get it from Canada. RI is relying on third party Solar farms situated right there in RI. New England needs your product. They need to find a solution since it will eagerly want to partake in the EVTOLs transportation industry. A foreseeable Trillion dollar market by 2040. I say pitch it to New England!! Wisconsin is another who already decided to be have the first permanent EVTOL airport aka vertiport. Government contracts to replace their old infrastructures.



Raymond LeVesque

2 months ago

ICYMI: The Nature Conservancy is facilitating the repurposing of brownfields, like former mines, for solar installations. This might be a worthwhile collaboration for you to propose adding storage at such a site, including your first demonstration project. See the following links for more information:



Richard Wrenn

2 months ago

I also registered (and was very much looking forward to!) the 9/15 webinar at 4:30 PM EST multiple times, but I never received any login/access info in my inbox. Did this webinar occur? If so - then was it recorded, and soon to be available to stream? If not - then are there any plans to reschedule? I'm very interested in this technology and (potentially!) investing; but I'd like to learn more before doing so...



Thomas Mueller

2 months ago

How do we join the webcast? I registered several times but never got any info on how to join.



Don Macfadyen

3 months ago

How can I confirm how many shares I have?



Richard Koch

3 months ago

My C student memory of physics classes (nearly 40-years in the rear view mirror) leads me to the conclusion that you're of using the principles of conservation of energy. Instead of converting electrical energy into chemical energy, you're converting and storing it as potential kinetic energy? Along with all of the benefits of never dealing with the sourcing and disposition of any materials used in batteries.



Samuel Raasch

3 months ago

What distinguishes Gravity Power from NRGV in terms of technology, customer base, etc?



Jacob Rocchi

3 months ago

How is the piston sealed to the shaft? Is it possible to go into detail? I’ve read the system allows a lot of pressure on those seals. How can you expect that point of failure to be scalable to enormous proportions? Very interested in this technology.



Sean Capaloff-Jones

3 months ago

What are your regulatory headwinds and tailwinds? Given that there are some extremely promising sites in coal country, and perhaps other fossil fuel friendly spaces , what are the politicians’ temperatures around your initiatives? While I understand that this promises to employ lots of former miners, do you see Manchin as an ally, a foe, or a neutral party? Basically, how will you get coal and gas politicians (state and Federal) to make your life easier and not harder?




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