Solar Surplus Produc-on and Rate Plan Choice Overview September 10, 2016 Rajiv Pandya 9/10/16 www.shine.partners 1 Typical One Day Example of a Home with Solar PV -­‐ REP Billing Methodology REP’s Solar Surplus Produc-on Credit from a Buy Back Plan is everything above the Red Curve and below the Green Curve REP’s Basic Electrical Consump-on Charge is everything below the Red Curve and above the Green Curve Red Curve = Home Electricity Consump6on Green Curve = Solar Electricity Produc6on Y Axis = KwHr X Axis = Sample Day 8/30/2016 8am to 8/31/2016 9/10/16 www.shine.partners 2 Residen-al Solar PV System in Bellaire, TX Installed in 2012 Size = 4.59 Kw Panels facing South and West Spanish Tile Roof Appx Annual Produc-on 5,900 KwHr TO SEE SOLAR PRODUCTION AND HOME CONSUMPTION PERFORMANCE: Monitoring of System’s Solar Produc-on (green curve) and Home Consump-on (red curve): hcp://lg991.d.lighthousesolar.com/ 9/10/16 www.shine.partners 3 Basic Electrical Consump-on Charge Solar Surplus Produc-on Credit from REP Buy Back Plans Actual Electricity Bills of REPs with 9/10/16 Solar Buy Back Plans www.shine.partners 4 Retail Electric Provider Spot Rate Plan Comparison for a Home with a Small Solar Photovoltaic System ALL$PLANS$100%$RENEWABLE$ENERGY
Consumption
Solar
Total
Month
Dec514
Dec514
Dec514
REP$#$1$(with$solar$BB$plan)
Rate
KwHr
Cost
$0.1520
1920
$291.84
$0.1520
282
5$42.86
$0.1520
1638
$248.98
Consumption
Solar
Total
Aug514
Aug514
Aug514
$0.1520
$0.1520
$0.1520
2370
573
1797
$360.24
5$87.10
$273.14
REP$#$2$(with$solar$BB$plan)
Rate
KwHr
Cost
$0.1090
1920
$209.28
$0.0750
282
5$21.15
$0.1149
1638
$188.13
REP$#$3$(with$no$solar$BB$plan)
Rate
KwHr
Cost
$0.0850
1920
$163.20
$0.0000
282
$0.00
$0.0996
1638
$163.20
$0.1090
$0.0750
$0.1198
$0.0850
$0.0000
$0.1121
2370
573
1797
$258.33
5$42.98
$215.36
2370
573
1797
$201.45
$0.00
$201.45
Based on the small solar system size (4.59 Kw) of this home, choosing REP # 3 with No Solar Buy Back Plan (and forgoing the Solar Surplus Credit) was the cheapest op-on 9/10/16 www.shine.partners 5 "POWER'TO'SHINE"'Z'ELECTRICITY'SAVINGS'SCORECARD
Name
Address
City
State
Zip
name
address
city
state
zip
SHINE'S'RECOMMENDATION
Retail'Electric'Provider'(REP)'Name'=
REP'Plan'Name'=
Contract'Duration'(must'be'12)'=
Contract'Expiration'=
AVG'Rate'($/KwHr)'at'500'KwHr'=
AVG'Rate'($/KwHr)'at'1,000'KwHr'=
AVG'Rate'($/KwHr)'at'2,000'KwHr'=
Early'Cancellation'Fee'=
Complaint'Score'(must'be'4'or'5)'=
Renewable'Source'=
Taxes'and'Other'Fees'=
Billing'
PROCEED'WITH'CAUTION'/'CONSIDER'
Cycle'
TO'CHANGE
Month
Comments:
BChangeDnotDmandatoryDbutDis
recommended
BRecommendDswitchDtoDREPDoptionD#D1
planDname
BDThisDplanDisDlessDattractiveDhowever
ifDyourDconsumptionDdropsDmuch
belowD1000DKwHrDperDmonth
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Best'Cheapest'REP
REPDoptionD#D1
planDname
12Dmonths
n/a
$0.1280
$0.0420
$0.0790
$200
4
11%
4%
Best'Renewable'REP
REPDoptionD#D2
planDname
12Dmonths
n/a
$0.1120
$0.0870
$0.0840
$175
4
100%
4%
Current'REP
Best'Lowest
Best'Renewable
Forecast'
Year
Electricity'
Consumed'
(KwHr)
2015
2015
2015
2015
2015
2016
2016
2016
2016
2016
2016
2016
Total'=
Savings'($)'=
Savings'(%)'=
2,110
1,535
1,049
618
992
741
659
819
1,120
1,536
2,030
2,559
15,768
B
B
$0.1006
$0.1016
$0.1033
$0.1249
$0.1147
$0.1204
$0.1232
$0.1182
$0.1030
$0.1016
$0.1007
$0.1001
B
B
B
$212.24
$155.95
$108.37
$77.16
$113.78
$89.20
$81.18
$96.84
$115.32
$156.05
$204.41
$256.20
$1,667
$0
B
$0.0810
$0.0678
$0.0454
$0.1254
$0.1220
$0.1239
$0.1249
$0.1232
$0.0499
$0.0679
$0.0796
$0.0872
B
B
B
$170.97
$104.12
$47.62
$77.52
$121.00
$91.82
$82.28
$100.88
$55.88
$104.24
$161.67
$223.17
$1,341
$326
20%
$0.0839
$0.0849
$0.0867
$0.1065
$0.0970
$0.1023
$0.1050
$0.1003
$0.0863
$0.0849
$0.0840
$0.0835
B
B
$177.12
$130.40
$90.91
$65.84
$96.23
$75.83
$69.17
$82.17
$96.68
$130.48
$170.62
$213.60
$1,399
$268
16%
B
B
$0.1057
B
$0.0851
B
$0.0887
AVG'Rate'($/KwHr)'=
Monthly'AVG'(KwHr)'=
9/10/16 Current'REP
currentDREP
planDname
12Dmonths
09/10/15
$0.1310
$0.1040
$0.1010
$200
4
11%
4%
Forecasted' Forecasted' Forecasted' Forecasted' Forecasted' Forecasted'
AVG'Rate' Total'Cost' AVG'Rate' Total'Cost' AVG'Rate' Total'Cost'
($/KwHr)
($)
($/KwHr)
($)
($/KwHr)
($)
Savings Delta 1,314
An independent rate plan comparison tool expanding on the capabili-es of State of Texas “Power To Choose” 6