Home Energy Systems Net Energy Metering (N.E.M.) 2.0. Presentation from their Solar Seminar on October 29, 2016. This presentation gives a summary of the rules and regulations surrounding resident owned energy and how it effects your solar system.

1. SOLAR POWER ON NEM
2.O
Presented by: Ross Williams & Rachael Williams

2. ABOUT THE PRESENTERS
 Ross joined Home Energy in 2009
 From East Coast
 Bachelors in Business Administration
 Started as Operations Manager
 Background in PM
 Presented on VNEM at Intersolar 2016
 Now V.P. and heads up operations
and business development.
Ross A.
Williams

3. ABOUT THE PRESENTERS
 Rachael joined Home Energy in 2016
 Graduated from Penn State in 2007
 Solar Consultant and Designer
 Ross’s Much Cooler Little Sister
Rachael Williams

4. BACKGROUND
 Net Energy Metering (NEM) has been the foundation
of the solar industry for the last 20 years
 With NEM, the customer/generator passes solar
electric power to the utility with a full retail credit which
fully offsets charges for purchases of power needed at
night or on cloudy days.
 This is equivalent to using the grid as a battery bank.

5. WITH ASSEMBLY BILL 327 IT THREATENED TO
CHANGE IN 2013
 AB327 allowed the changing of terms of the original NEM (1.0) in
each territory when solar capacity reached 5% of utility peak sales.
The bill essentially gave the utilities the opportunity to end net
metering and the solar industry.
 We fought to ensure Californians continued to have access to
reliable, inexpensive, clean solar power.
 We won the war with three minor exceptions:
 The advent and implementation of Non-Bypassable Charges (NBC’s)
 A fixed interconnection fee, to be paid once when the system is
interconnected
 Mandatory TOU for residential customers

6. NON- BYPASSABLE CHARGES
 In NEM 1.0 solar customers only paid these fees on monthly net usage
 In NEM 2.0 they are required to be paid on all energy drawn from the
grid
 Comprised of:
 Nuclear decommissioning
 Public purpose programs
 Competitive transition charge
 Department of Water Resources (DWR) bond charge, a legacy of Enron
contracts in 2001
 All this amounts to around 2 cents per kWh

7. NON- BYPASSABLE CHARGES
cont…
 NBCs are within the minimum monthly bill, not in addition to!
 NBC’s do not apply to solar power produced and consumed
on-site (behind the meter).
 For system additions, there will be a loss of NEM 1.0 status if
the increase in system size is more than 10%

8. NBC ESTIMATES
Low Estimate Mid Estimate High Estimate
System Size (kW) 4 5 7
Productivity (kWh/kW) 1400 1500 1650
Exports 40% 50% 60%
Avg exports (kWh/mo) 187 313 578
NBC Rate $0.020 $0.023 $0.025
NBC Total ($/mo) $3.73 $7.19 $14.44

9. INTERCONNECTION FEE
This is a fee to be paid when applying for
interconnection through the NEM 2.0
program
Paid by Home Energy Systems
$132.00

10. TIME OF USE METERING (TOU)
 SDG&E NEM 2.0 customers sign up under tiered rates until 120
days after the current rate case is concluded and then can stay on
those rates for five years. The rate case is scheduled to end in
February 2017.
 Translation: All NEM 2.0 customers will be put on a TOU tariff in the
summer of 2017
 Best TOU rate options for solar customers:
 DR-SES
 TOU-DR
 EV-TOU-2 (For customers with Electric Vehicles)
Green Button Data will help determine best rate option.

11. LOAD PROFILES/ A NEED TO
KNOW
-4
-2
0
2
4
6
8
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
kWh
Production
Consumption
Net Consumption

12. A CLOSER LOOK AT DR-SES
SUMMER RATES
-4
-3
-2
-1
0
1
2
3
4
5
6
7
0
5
10
15
20
25
30
35
40
45
50
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
kWhProduction
Cents/kWh
Hour of Day

13. DR-SES WINTER RATES
0
5
10
15
20
25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Cents/kWh
Hour of Day

14. SDG&E’S TOU PEAK ADJUSTMENT
PROPOSAL
Current peak in the summer is from 11AM –
6PM
Proposed change is to move the peak to 4PM-
9PM year round
Will jump start the energy storage industry in
San Diego!

15. TOU PEAK PERIODS MAY
CHANGE
-4
-3
-2
-1
0
1
2
3
4
5
6
7
0
10
20
30
40
50
60
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
kWh
Cents/kWh
Hour of Day

16. ADVANCED ENERGY STORAGE
 Instead of sending energy to grid during the day, send
it to an advanced energy storage system (AES).
 Discharge the AES from 4-9PM and then charge it
back up the next day
 This will affectively avoid the new proposed peak
 Can also serve as battery back up during grid outages

17. SONNEN BATTERIE BACK-UP &
TOU

18. Ross Williams (619) 417-0098
 ross@hessolar.com
Rachael Williams (619) 300-7675
 rachael@hessolar.com
QUESTIONS & CONTACT
INFORMATION