1. Peter Luttik
VP Technology

2. Liquid Desiccant Air Conditioning
30-40% kWh energy savings
20% Peak kW capacity reduction
<1 Year payback
Humidity and temperature controls
Liquid Desiccant Heat Exchanger (LD-HX) for efficient dehumidification
Cooling and heating under (very) hot and humid conditions
30-40% energy savings demonstrated versus best in class solutions
Plus: improved comfort, no condense, form factor
Plus separate humidity and sensible control
High performance building solution with <1 Year payback
20%+ Peak capacity reduction at <$1000 per kW capacity

3. Demonstrations confirm savings 3 2 2 1 5 2
2016
Under extremely hot and humid condition in the record braking Gulf region we demostrated 30-40% improvement over best in class solution
Two small mini split solution was tested in our lab, one for DOD the other for an OEM partner under a joint development agreement
2 years ago with support from DOE/DOD/NREL we tested a large 30Ton unit in Guam. Issues that arose have been fully adressed
5. NREL lab test in 2014.
Under IN2 new lab test of panels only later this year.

4. Single Step Cooling Solution
85F, 70% Rel. Hum.
100%
Rel. Hum.
50% Rel. Hum.
Conventional
Over Cools and
Reheats
7AC Desiccant HVAC
Dries and Cools
Humidity
Solid Desiccant
Over Heats and Dries
Target
74F, 50% Rel. Hum.
Reheat
90F
100F
80F
70F
60F
50F
Temperature
Conventional HVAC
100 year old technology
Overcools to dehumidify
Reheats for comfort
Lower lift
No reheat
Lower capacity
Simple configuration - outperforms highly complex multi stage systems
STRICTLY CONFIDENTIAL 7AC Technologies, Inc. COMPANY CONFIDENTIAL DATA
11/29/2018

5. 7AC Core technology: Hydrophobic membrane
Air flowing through our panels flow over a membrane that is 80% open. Vapor can go through. Water can’t since the membrane is highly “hydrophobic”. As water vapor is taken out of the air, the desiccant wants to warms it up which would make it loose its absorptive capacity. But a large volume of cooling water (10x) prevents that from happening. That’s important, because it keeps the desiccant highly efficient.

6. LDAC saves energy by lowering lift
Reduces work that compressor has to do. It can move the same amount of energy with less effort if the delta T is lower. Remember it’s a pump. Lifting something twice as high takes twice the energy!

7. LDAC- Liquid desiccant Air Conditioning
Air is conditioned by one set of panels to a specified humidity and temperature level, then the desiccant is send to the hot side of our compressor. There it reconcentrates, at the same time reducing the operating temperature

8. Strong IP position 60 Global Patent Applications 30 US applications
4 NREL Devap related licenses

9. 7AC Investments Sub system suppliers Advanced materials HVAC systems
Contractors
Building
Owners
End Users
Emerson Electric (2016)
2 Year Evaluation
Technology Gating Process
OEM partnering
Sabic (2015)
DOAS demonstration in Arabian Gulf
3M (2013)
NREL – License, CRADA, IN2 ( )
DOD Innovative Cooling Equipment demonstration (2016)
Navfac demonstration (2014)
Massachusetts clean energy center – AQUA 1 demonstration (2017)

10. Development Partnerships >$1M
Modeling
Testing
Demonstrations
CRADA
DOE/DOD MOU
IN2
Advanced materials
Sub system suppliers
HVAC systems
Contractors
Building
Owners
End Users
>$1M in joint development agreement with 6 OEMs
NDA’s with 12 out of 20 leading OEMs
Full development pipeline

11. OEM Partnerships >$1M
Advanced materials
Sub system suppliers
HVAC systems
Contractors
Building
Owners
End Users
6 OEM Joint Development Agreement’s
12 OEM NDA’s
>$1M in joint development agreement with 6 OEMs
NDA’s with 12 out of 20 leading OEMs
Full development pipeline

12. “7AC Inside”: modules for OEMs

13. Options for accelerating adoption
New Generation capacity
Cost per kW
$3000
Present
Price
Per Ton
$2000
$1000
DOAS
Dehumidication
Ventilation standards (ASHRAE)
Building standards (DOE)
Other (DOD?) DX
.2Q
DEVAP 2Q
High end industrial dehumidification
Residential focus on comfort, air quality, form factor
Chilled water networks to meet efficiency and dehumidification requirements
Commercial focus on affordable building quality
Towards net zero with up to 90% water savings versus evaporative cooling solutions
20% % 60% 80% 100%
Savings per Unit (kWh/kW)
Quads savings

14. Next Steps 2017 focus on commercial Panel 2018
Initial commercial panel production
Demonstrations with existing partners – Joint design
Other climate zone’s: dry/humid, cooling and heating
Best in class commercially viable Energy Savings Technology
2018
Commercial demonstrations
high value Dehumidification and DOAS opportunities
Additional joint development OEM partners