Solar/Fossil Hybrid Plants:
Deploying Renewables by Leveraging
Existing Energy Infrastructure
Justin Raade, PhD
CEO and Founder jraade@halotechnics.com
510-547-2634
1 CONFIDENTIAL
© 2012 Halotechnics, Inc.

The Halotechnics story
Halotechnics Saltstream technology solves a key bottleneck in reducing emissions from thermal power plants
2007
Dr. Justin Raade begins molten salt research at Symyx
$1.5 million DOE grant awarded for molten salt R&D
Breakthrough salt mixtures discovered
Halotechnics founded, spins out of Symyx to commercialize products
NSF SBIR grant awarded for CSP materials R&D
2008 2009 2010 2011
$4.3 million from ARPA-E and
NREL for advanced thermal storage R&D
2012
2 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Rapid materials screening
• Novel materials unlock the most significant advances in technology
> Proprietary software and automated lab equipment
> Can screen up to 100 mixtures/day
> Screened over 20,000 mixtures to date
3 CONFIDENTIAL
© 2012 Halotechnics, Inc.

The sun is the ultimate source of energy
4 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Solar thermal hot spots
United States:
5 GW solar thermal by 2020
Standalone solar with storage
China:
1 GW solar thermal by 2015
Solar/coal hybrids
5 CONFIDENTIAL
Saudi Arabia:
25 GW solar thermal by 2022
Solar/gas hybrids
Saltstream 700 enables advanced solar thermal power
© 2012 Halotechnics, Inc.

Saltstream 700
Reduce emissions and fuel consumption with solar energy
• Solar thermal power turns the sun’s heat into electricity
• Leverages existing turbine technology in today’s thermal power plants
• Hybridize coal plants with supercritical steam from solar energy
• Hybridize natural gas plants by preheating combustion air with solar energy
Saltstream 700
6 CONFIDENTIAL
© 2012 Halotechnics, Inc.

China’s appetite for coal
• Economic growth is Priority #1
• New coal plants deploying at 900 MW per week
• China must clean up its coal

Use solar thermal energy with Saltstream 700
7 CONFIDENTIAL
© 2012 Halotechnics, Inc.

High
China solar resource
Low
8 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Current coal plants – 720,000 MW
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© 2012 Halotechnics, Inc.

Current coal plants – 720,000 MW
2200 km transmission line to connect the sun to the demand
10 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Current coal plants – 720,000 MW
In 5 years
11 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Current coal plants – 720,000 MW
In 5 years
In 10 years
12 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Hybrid solar/coal plants
Saltstream 700
COAL
620 ° C steam
Steam turbine
• Saltstream 700 enables solar generated steam at full quality – no compromise
13 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Saudi Arabia must conserve oil for export
• Most electricity comes from burning oil – cheap power, but huge opportunity cost
• Power generation capacity to double by 2020
• Saudi Arabia must stretch its gas to conserve its oil for export

Use solar thermal energy with Saltstream 700
14 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Hybrid solar/gas plants
• Saltstream 700 preheats combustion air and reduces natural gas consumption
Compressor
AIR
Gas turbine
EXHAUST
GAS
Saltstream 700
15 CONFIDENTIAL
© 2012 Halotechnics, Inc.

System validation of Saltstream 700
HOT TANK
• Lab scale thermal storage system (30 kWh, 300 kg salt)
• Funded by $1 million NREL SunShot Incubator award
16 CONFIDENTIAL
© 2012 Halotechnics, Inc.

Solar/Fossil Hybrid Plants:
Deploying Renewables by Leveraging
Existing Energy Infrastructure
Justin Raade, PhD
CEO and Founder jraade@halotechnics.com
510-547-2634
17 CONFIDENTIAL
© 2012 Halotechnics, Inc.