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Direct Coupling® Solar PV
Into Building Loads
PRESENTED BY PAUL SAVAGE, CEO
The Idea
Energy costs ↑
Grid reliability ↓
Utilities need reduced peak demand; fixes are complex
Net-Metering is not a sustainable business practice
Billions of Compromises
Better metering, monitoring and control with integrated storage
10% to 50% improvement!
Use power where, when, and how it is generated
Buildings that integrate DG
The Need
Bring Simplicity to These Problems
The Trend
Our Case Study
Load Profile Before
Introducing Connectivity & Control
+
Post-Installation Load
North Fan Speed, Power & Irradiance
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
4/1
9 0
:00
4/1
9 1
:00
4/1
9 2
:00
4/1
9 3
:00
4/1
9 4
:00
4/1
9 5
:00
4/1
9 6
:00
4/1
9 7
:00
4/1
9 8
:00
4/1
9 9
:00
4/1
9 1
0:0
0
4/1
9 1
1:0
0
4/1
9 1
2:0
0
4/1
9 1
3:0
0
4/1
9 1
4:0
0
4/1
9 1
5:0
0
4/1
9 1
6:0
0
4/1
9 1
7:0
0
4/1
9 1
8:0
0
4/1
9 1
9:0
0
4/1
9 2
0:0
0
4/1
9 2
1:0
0
4/1
9 2
2:0
0
4/1
9 2
3:0
0
4/2
0 0
:00
Wa
tts
-
100
200
300
400
500
600
700
800
900
1,000
1,100
1,200
1,300
1,400
1,500
1,600
1,700
1,800
Sp
ee
d (
RP
M),
Irra
dia
nc
e (
W/m
2)
Nth MEC Watts Nrth Speed Irradiance
100% Speed
50% Speed
75% Speed
17% Power
100% Power
45% Power
Combined Systems Lower Utility Load by 75%
North Fan Load, PV Contribution and Net Utility Load
-
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
4/1
9 0
:00
4/1
9 1
:00
4/1
9 2
:00
4/1
9 3
:00
4/1
9 4
:00
4/1
9 5
:00
4/1
9 6
:00
4/1
9 7
:00
4/1
9 8
:00
4/1
9 9
:00
4/1
9 1
0:0
0
4/1
9 1
1:0
0
4/1
9 1
2:0
0
4/1
9 1
3:0
0
4/1
9 1
4:0
0
4/1
9 1
5:0
0
4/1
9 1
6:0
0
4/1
9 1
7:0
0
4/1
9 1
8:0
0
4/1
9 1
9:0
0
4/1
9 2
0:0
0
4/1
9 2
1:0
0
4/1
9 2
2:0
0
4/1
9 2
3:0
0
4/2
0 0
:00
Mo
tor
Wat
ts
-
100
200
300
400
500
600
700
800
900
1,000
1,100
1,200
So
lar
Irra
dia
nc
e W
/m^
2
North Load North PV North Utility Irradiance
Savings Components
Avoided AC Kilowatt Hours; Greater Than 100%
Reduced Demand ChargeLower Usage due to Control
www.directcoupling.com
The Addressable Loads Today
Applications: Computers Overhead Lights Motors Phones Chargers Fans Task lighting UPS
Bill McDonough
Our Customers
