Kenneth Brown and Andrew McClaine

draweryaleΜηχανική

27 Οκτ 2013 (πριν από 3 χρόνια και 11 μήνες)

77 εμφανίσεις

Solving the Electricity

Storage Problem

Kenneth Brown and Andrew McClaine

Electricity Stored as Hydrogen in a Rechargeable Metal
Hydride Slurry

2



The Slurry

3


Safe Hydrogen’s Technology


Slurry of Magnesium/Magnesium Hydride

a liquid


Safe

very slow reaction with H2O or air


Absorbs and desorbs H2


Delivers H2 for <$3 per kg, equivalent to <$3US per US
gallon gasoline or <.60 Euros per liter


Hydrogen for natural gas price equivalent to $12US per
million BTU, .06 Euros per KWh


Capital cost for storing electricity <$10 US per kWh or
<7 Euros per kWh


Uses today’s infrastructure




4

First Uses



Store intermittent electricity

Wind, Solar, and tidal


Back up Systems



Utility Battery



Deliver H2 to fueling stations












5

Wind Turbine

Electrolyzer

Slurry Transport by road, rail, or barge

Electric Distribution

Tank Farm


Gas Turbine


Electricity Storage with Slurry





Slurry

6

Storing Wind Energy

7

Firming 500 MW Wind Farm

8

Power Flows

Goal: 150 MW output for 100% of
the year.

When the wind blows maximum (500 MW) for about 20% of the
year, 150 MW goes to the grid, 350 MW goes to storage
system

When the wind blows between maximum and 150 MW, 150 MW
goes to the grid, the balance goes to storage system

When the wind blows between 150 MW and 100 MW, all the wind
goes to the grid and the balance comes from the storage
system operating one 50 MW GT

When the wind blows between 100 MW and 50 MW, all the wind
goes to the grid and the balance comes from the storage
system operating two 50 MW GTs

When the wind blows between 50 MW and 0 MW, all the wind goes
to the grid and the balance comes from the storage system
operating three 50 MW GTs

9




Technology Costs




Build Time

Efficiency

Cap Cost $/KWh

Cap Cost $/KW

Discharge Time

Pumped Storage

9
-
15 yrs

80

10

1000

1
-
24hr

CAES

3+ yr

55

80

800

1
-
8hr

Pb Acid Battery

6 mo

75

500

500

seconds
-
8hr

Na/S Battery

6 mo

85

500

2000

seconds
-
8hr

Flow Batteries

6 mo

80

800

1200

seconds
-
8hr

Li Ion

6 mo

90

2000

2000

seconds
-
8hr

NiCd

6 mo

90

1100

900

seconds
-
8hr

Metal Air Batteries

6 mo

45

50

2000

seconds
-
8hr

Capacitors

2 mo

99

8000

200

seconds

Fly Wheels

1 yr

95

1000

300

minutes to 4hr

Gravity Power

2 yr

80

200

500

20 min to 4 hours

Slurry

2
-
3 yr

40

5

7000

1
-
1000hr

10

Technology Comparisons


Technology


Pros(relatively)


Cons(relatively)


Pumped Storage


High Capacity


Special Site Requirements





Low Capital Cost


CAES



High Capacity


Special Site Requirements





Low Capital Cost


Natural Gas Requirement








Efficiency


Lead Acid Battery

Low Capital Cost


Limited life cycle


Sodium/Sulfur


High Power Density


Cost


Batteries


High Energy Density





High Efficiency


Flow Batteries


High Capacity


Low Energy Density





Independent Power &





Energy Ratings

11

Technology Comparisons (Cont.)


Technology


Pros(relatively)


Cons(relatively
)


Li Ion Batteries


High Power Density


Cost





High Energy Density


Specialized Charging





High Efficiency


Nickel/Cadmium


High Power Density


Cost


Batteries


High Energy Density







High Efficiency


Metal Air


Very High Energy Density

Recharge Expensive


Batteries

12

Technology Comparisons (Cont.)


Technology

Pros(relatively)

Cons(relatively)


Capacitors


Long Cycle Life


Low Energy Density





High Efficiency


Flywheels


High Power


Low Energy Density





Long Cycle Life


Gravity Power


Low Capital Costs


Low Energy Density





Easy to site


Slurry


Low Capital Cost


Low Power Density





High Capacity


Low Efficiency





High Energy Density





Long Discharge time





Independent Power &





Energy Ratings





Easy to site




13

Key cost driver

14

IP


US Patent 7052671

Storage, Generation, and Use of
Hydrogen May 30, 2006


US Patent 7,790,013 B2
--
Storing and Transporting
Energy, September 7, 2010

15

Team


Ken Brown

Managing Partner

BS Engineering from
Yale, MBA from Harvard

marketing, business
development, product management


Andy McClaine

Managing Partner, CTO

BS Engineering
from Trinity, MSME from Stanford

project management,
research


Dave Bowen

Contractor

Bachelor of Engineering from
Liverpool

high temperature processes, research, reactor
design


16

We want to talk about:


Adding Storage to your wind farm


Doing Storage as part of your wind farm project


Doing a joint venture on backup power

17

Contact Information



Safe Hydrogen, LLC


30 York Street


Lexington, MA 02420


USA


Ken Brown, Managing Partner 1
-
781
-
572
-
0334


Andy McClaine, Managing Partner 1
-
781
-
572
-
0335


www.safehydrogen.com