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Greenway Design Group, Inc. (GDGI)

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GDGI Share Structure as of 06/12/14

Shares/PV Authorized: 500,000,000
Shares/PV Outstanding: 253,000,000
Free TradingShares: 153,000,000


The Winner of the 18th Annual TechAmerica High-Tech Innovation Award...

TechAmericaOn June 7, 2011, Greenway Design Group, Inc. was named the WINNER of the 18th annual TechAmerica/ Harvey Mudd College Green Tech innovation award. Cool-n-Save was chosen from hundreds of applicants in recognition for work with energy-saving evaporative pre-cool misting technology designed for commercial and residential central air conditioning systems.


How it works

First, we solve the "HOT AIR" problem.

Our "pre-cool" flash evaporation methodology (using mist water to cool ambient air temperature) is an effective means to increase heat flux (the rate of heat exchange) by lowering ambient air temperature.

Air temperature is the primary function of heat transfer from the refrigerant; the cooler the outside air, the faster the system can remove heat. Cool-n-Save decreases ambient air temperature by about 30 degrees, which improves overall HVAC efficiency and performance.

pre-cool shield

All it takes is a little evaporative 'magic'.

About five years ago, our engineers discovered that the easiest way to solve the "hot air" problem is with a little evaporative 'magic'. Our Cool-n-Save pre-cool system raises a "pre-cool shield" of treated water mist into the air around the HVAC unit. Flash evaporation causes the mist to evaporate almost instantly. The result is what engineers call an adiabatic boundary - a shield that literally insulates the HVAC from excess heat. Ambient air temperature around the unit drops by as much as 30°F. That means that if the ambient air temperature is 98°F, Cool-n-Save will knock it down to 68°F. The air then acts on the fins and increases heat exchange efficiency.

heat exchangeRelative humidity is the amount of moisture in the air compared to the amount of moisture the air could absorb at the same temperature. It is a crucial factor in determining cooling potential. The lower the relative humidity, the more water can be vaporized, and the more heat can be removed (see chart).

A solution that works in almost any climate.

Even in areas with high relative humidity the moisture level around HVAC coils is very low (less than 20%). This is due to the high heat output of the coils - about 85°F. That's why Cool-n-Save HVAC Pre-cool is effective in almost any climate.


With a properly installed system in place, Cool-n-Save treated water evaporates quickly enough to produce that crucial drop in ambient air temperature, which leads to the lower fin temperature and greater heat flux (temperature differential between coolant and fin). The result is that the condenser runs less frequently.

That's how Cool-n-Save reduces HVAC energy consumption by as much as 30%.



Beyond the
Tulane Study

Tulane Study"Cool-n-Save can lower the cost of running HVAC systems by as much as 30%" and "Cool-n-Save can reduce energy consumption of HVAC systems up to 30%" are not just idle claims. They are based on real world results, not superlatives and speculation. Some research - in particular the one from Tulane University - have fund that, under certain conditions, savings might even be greater than 30%. The study itself can be found HERE.

No doubt, the Tulane study was a great boost for Cool-n-Save development team, but some of those findings presented a bit of a conundrum for the marketing department at Greenway Design Group. Amid the observed gained efficiencies from pre-cool AC misting, the Tulane researchers observed that Cool-n-Save increased heat flux by 170%. Since heat flux is a measurement of HVAC efficiency, this conclusion might seem incredible were it not based on the results of a controlled laboratory experiment.And that's where the conundrum started.

The first reaction by our marketing department was to take up the claim that Cool-n-Save "increases efficiency by 170%." However, cooler heads prevailed and Ben Lefrancois and Darius Jakubik decided to take a more conservative course. Rather than suggest very high (and unreasonable) expectation for energy savings, the company went beyond the Tulane study and relied on the real world results. In so doing, we also burdened ourselves with taking in all of the variables and conditions that can affect Cool-n-Save performance.

For instance, weather and climate have significant impact on performance. Warmer, dryer conditions tend to generate the best results (e.g., the upper end of the savings scale) while cooler, wetter conditions do not (e.g., lower end of the savings scale). Then there's the location, size and condition of the condenser unit. Smaller, older units that are poorly maintained will not produce the same level of savings of larger, better-maintained or newer units. We found that there are far too many variables to make blanket, unconditional claims.

We found the answer from our clients: people were saving "up to 30%" on the cost of running their HVAC system (the average saving is about 25%). According to EIA data (Energy Information Administration), electricity for HVAC alone can be 25 to 50% of the monthly cost of building operations (depending on local electricity rates). That means many of our clients see reduced overall energy consumption from 7 to 15%, which in any economy is a huge dividend.


Why Cool-n-Save works:
The science behind the savings.

Ambient air temperature has a direct correlation on efficient heat transfer from the refrigerant in AC systems. The cooler the air, the faster heat moves out of the system. Cool-n-Save immediately decreases air temperature by about 30% which means greater efficiency in overall HVAC performance.

Heat is often loosely referred to as thermal energy. However, the scientific definition of heat requires that energy be actually in the process of movement from one object to another. While this may seem like a quibble over details, the particular point of interest in the Tulane study is heat flux - or the rate in which heat travels.

Thermodynamics (the study heat energy) is the underlying reason why HVAC works the way it does. To truly understand the work that is going on behind the condenser coils of your air conditioner, there are several laws of thermodynamics to consider. One is the fact that the energy of an isolated object is "conserved" and may remain constant. Another law observes that heat transfer occurs only in the direction of the colder object. For most air conditioning systems, that 'colder object' is the air that surrounds the outside condenser coils. If we want to get rid of the heat that collects in the refrigerant in the coils, we want to promote heat transfer - or heat flux.

Promoting heat flux means allowing spontaneous flows of energy from one object of a high temperature (e.g., refrigerant inside the coils) to one that has a lower temperature (e.g., the outside air). Therefore, the lower the outside air temperature (ambient air temperature), the faster heat can move (the greater the heat flux). By extrapolation, this leads us to the potential energy-efficiencies gained by Cool-n-Save. By spraying micro water mist into the air around the HVAC unit, we ensure that the heat ratio between the coolant and the fins is as large as possible. Ambient air temperature has a direct correlation on efficient heat transfer from the refrigerant in AC systems. The cooler the air, the faster heat moves out of the system. Cool-n-Save pre-cool AC mist immediately decreases air temperature by about 30% which means greater efficiency in overall HVAC performance.

The Cool-n-Save Solution

Greenway solved the "hot air" problem by injecting treated water mist into the air around the outdoor coils. As most of the mist evaporates instantly, creating what we call a pre-cool shield.

Inside the 'shield', the air temperature can be 30°F lower than surrounding ambient air. For instance, if the ambient air temperature is 98°F, the mist will knock it down to approximately 68°F. According to a white paper published by Colorado Springs Utilities in 2005, for every degree Fahrenheit reduction in ambient air temperature, a reduction of 1 to 1.5% in energy demand is realized. Thus, cooler ambient air dramatically increases the EER (Energy Efficiency Rating) of the air conditioning system. The system runs more efficiently and less frequently, thus less energy is used for GREATER cooling power.

Third-party tests have shown that Cool-n-Save® Evaporative Pre-Cool Systems produce up to 30% savings on energy use; the average is around 26% depending on climate, and the conditions and size of the system (the larger the system, the greater the potential energy savings). Cool-n-Save also helps reduce wear and tear on equipment (thanks to gained efficiency) which leads to lower overall cost for repair and replacement.

A detailed analysis of how Cool-n-Save improves the efficiency of air conditioning condenser units was conducted by the Department of Mechanical Engineering at Tulane University in Louisiana in 2005 (see sidebar "Beyond the Tulane Study"). In the 29-page report, researchers concluded that Cool-n-Save "substantially" increases heat transfer of air conditioning units and "that cooler air will be able to circulate throughout a structure and that this will decrease the time the condenser unit runs thus reducing electricity cost to the user." A separate study presented in 2009 during an international conference held in Glasgow, Scotland by researchers from Hong Kong Polytechnic University confirms that the application of water mist to pre-cool "ambient air" increases performance and efficiency of air conditioning systems by 30% or more. Subsequent system field tests of Cool-n-Save installations show instant and sustainable reduction of energy consumption - on average about 26%, with peak savings of more than 30%.

Greenway was also recently declared the winner of TechAmerica's 18th Annual High-Tech Innovation Awards for "Green Engineering" from Harvey Mudd College. Cool-n-Save was recognized as an innovation that has wide reach and high potential to significantly reduce energy consumption wherever air conditioning systems are used.

According to researchers at UC Davis, the world NEEDs innovations like Cool-n-Save. HVAC operations account for more than 25% of electricity consumption in California alone. In climates where heat is more intensive (e.g, the U.S. "sunbelt region", Central America, South America), HVAC operations can account for more than 40% of annual energy consumption. The California Energy Commission California Commercial End-Use Survey (CEUS) reports that roughly 65% of commercial floor area is cooled by 'split system' packaged rooftop units. About 80% of the individually connected air conditioning systems fall in this category.

Greenway's Cool-n-Save pre-cool system is proven to be the first economically viable, turnkey commercial solution that increases efficiency of split system HVAC by as much as 30%. This level of efficiency improvement will be essential to reach energy efficiency goals set by national, state policies and throughout the business community.


Photon LTD (Pictured Above), is the exclusive sales and manufacturing partner paying royalities to GDGI for all sales in Asia.

Customers Include:

Banchoon Enterprises in the Phillipines

Korea University of Technology

Device INC

Giant INC

Just some of Greenway's billion dollar clients.


Pepsi co(USA)

Hughes Network Systems(USA)

Denny's Restaurants(Costa Rica too) 1684 restaurants !!!

Korea Telecom(S.Korea) 500 Buildings !!!

Kash Casinos(Mexico)

Chesapeake Energy Corporation(USA)

Banco Nacional de Costa Rica(Costa Rica)

Nike Training Centers (1 center in OC)

Soriana(Mexico) 500 retail outlets !!!

International Rubber Company (Headquarter facility)


  • STILL NO CHANGE IN SHARE STRUCTURE SINCE 9/18/2012 (as of 06/12/2014)



               Purchase the residential cool-n-save unit and start saving up to 30% on your electric bill at any of these authorized distributors:

  • 1D
  • 1M
  • 2M
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  • 6M
  • 1Y
  • 2Y
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  • 5Y
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Bid Ask Day's Range
#23038  Sticky Note FOUND THE MISSING MONEY! dcsteve 07/15/14 07:45:30 PM
#22962  Sticky Note Found the exact txt posted on pacer.gov: megalodontheory 06/18/14 08:54:19
#23081   Can't believe it's still .0022. No dilution in dcsteve 07/23/14 11:06:38 PM
#23080   Ray Wyman writes real juicy prs. dcsteve 07/23/14 11:03:44 PM
#23079   Gdgi will easily be able to sell the dcsteve 07/23/14 11:02:31 PM
#23078   The judge has to approve the petition letter dcsteve 07/22/14 07:11:53 PM
#23077   DC, what are the odds that the confiscated doiling 07/22/14 01:22:41 PM
#23076   I hear you man, trades have been reallyy seanpersons1 07/21/14 05:17:03 PM
#23075   The buying frenzy will probably begin in the Angelman 07/21/14 05:10:59 PM
#23074   no money.. is that about to change? I dcsteve 07/21/14 01:59:58 PM
#23073   AlL they gotta do is sell some units "PERIOD" robalamo 07/21/14 12:59:40 PM
#23072   Hilarious...... teacher14 07/21/14 11:43:06
#23071   It's funny how less than 3 grand in phillyslade 07/21/14 11:41:13
#23070   Someone sold, and someone bought. I smell movement Stump Jumper 07/21/14 09:40:58
#23069   What's with all the volume? nathanial 07/21/14 09:36:24
#23068   Steve, How about a DC recap as to GDGI Meen green 07/20/14 11:36:35 PM
#23067   And at what point do we have the teacher14 07/20/14 10:00:04 PM
#23066   Bring it to ten and let Angel swim Meen green 07/20/14 01:50:58
#23065   Sounds like a very good plan... I will Angelman 07/19/14 05:48:28 PM
#23064   The road will end and another begin very Meen green 07/19/14 05:05:40 PM
#23063   Extreme upward PPS movement is always about very dcsteve 07/19/14 11:43:07
#23062   With such little shares available- 250m OS- that dcsteve 07/19/14 11:39:14
#23061   Last week I saw an article about a Angelman 07/19/14 11:22:56
#23060   Breakout boards dcsteve 07/18/14 10:58:25 PM
#23059   How did you find GDGI? somji 07/18/14 10:39:09 PM
#23058   Haven't found many good plays this year and dcsteve 07/18/14 09:56:01 PM
#23057   After all this waiting... it's almost time. Within dcsteve 07/18/14 09:54:25 PM
#23056   Cool Steve! Meen green 07/17/14 09:25:25 PM
#23055   i confirmed that ben already mailed the petitions dcsteve 07/17/14 06:15:33 PM
#23054   only lose money when selling. The company certainly dcsteve 07/16/14 01:55:44 PM
#23053   People were saying that same thing when I phillyslade 07/16/14 01:12:55 PM
#23052   Some here will probably sell most (if not Angelman 07/16/14 01:09:24 PM
#23051   I know its fun for u to push teacher14 07/16/14 12:06:41 PM
#23050   Oh look, another deadline. 35 days!!! I thought phillyslade 07/16/14 11:25:55
#23049   This is awesome news everybody! Thanks, dcsteve! megalodontheory 07/16/14 09:16:24
#23048   Message to the board... In case you haven't Newb21 07/16/14 06:26:29
#23047   Excellent work Steve! You are the man! GDGI Newb21 07/16/14 06:18:16
#23046   Thank you for that great piece of info! Way seanpersons1 07/16/14 03:15:33
#23045   What a find Steve. Good work!!! somji 07/16/14 03:12:21
#23044   Watching and waiting buddy. Trigger finger is ready Marab123 07/15/14 08:46:06 PM
#23043   thanks russ. We need to make some money dcsteve 07/15/14 08:44:51 PM
#23042   Ben needs you on the payroll man. Marab123 07/15/14 08:24:27 PM
#23041   heard from ben, he is on it right now. dcsteve 07/15/14 08:09:59 PM
#23040   Thanks Shurik. only 35 more days for ben dcsteve 07/15/14 07:58:48 PM
#23039   Great job Steve. Now I understand why we Shurik63 07/15/14 07:53:31 PM
#23038   FOUND THE MISSING MONEY! dcsteve 07/15/14 07:45:30 PM
#23036   that filing says the mortgage company was owed dcsteve 07/15/14 07:08:14 PM
#23035   New filing came out last week showing that dcsteve 07/15/14 07:04:49 PM
#23034   Nice grab man! seanpersons1 07/15/14 01:47:37 PM
#23033   Go stump! Meen green 07/15/14 01:34:13 PM
#23032   Got some cheapies today, now ready for takeoff. Stump Jumper 07/15/14 11:17:07
#23031   A Bently is a type of automobile and Angelman 07/14/14 12:40:41 PM