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John C. Frain Director Regulatory Strategy & Revenue Policy P.O. Box 1475 Baltimore, Maryland 21203-1475 Telephone 410.470.1169 Fax 410.470.8022 www.bge.com john.frain@bge.com December 18, 2018 Via Electronic Filing Terry J. Romine, Executive Secretary Public Service Commission of Maryland William Donald Schaefer Tower 6 Saint Paul Street, 16 th Floor Baltimore, Maryland 21202-6806 Re: Case Nos. 9056/9064; Compliance Filing in Case No. 9221 Supplement No. 624 to P.S.C. Md. E-6 Revisions to Time-of-Use Standard Offer Service Energy s and February 2019 Administrative Charges under Rider 1 Standard Offer Service ( SOS ) Dear Ms. Romine: Baltimore Gas and Electric Company (BGE) files herewith Supplement 624 to P.S.C. Md. E-6, BGE s Retail Electric Service Tariff to become effective February 1, 2019. Based on results from the October 22, 2018 retail supply procurement bids, the Residential, Type I and Electric Vehicle TOU SOS Energy rates have been shaped by rating period using June September 2018 settlement data. The Residential and Type I standard and unshaped TOU rates were previously accepted by the Maryland Public Service Commission in Order No. 88892 issued October 26, 2018 in the above-referenced cases. Under Rider 1, the SOS Administrative Charges are subject to adjustment in the February, June and October billing months to reflect the estimated incremental, uncollectible, and cash working capital costs of providing Residential, Type I, Type II and Hourly Service. The Company has performed its true-ups of actual incremental, uncollectible, and cash working capital costs to the estimated costs of providing Residential, Type I, Type II and Hourly Service. As such, any over- or under-collection of costs compared to the estimated costs for the program year are included in the projected Rider 1 rates herein to be effective for the period from February 2019 through May 2019. Under Rider 1, the SOS Administrative Charges are also subject to an annual adjustment to the return component. Effective for the period from February 2019 through January 2020, the Company has adjusted the return component by service type consistent with Commission Order No. 87891. See Attachment 1 for supporting calculations.

Attachment 1 Annual Adjustment to the SOS Return Component

Baltimore Gas and Electric Company Annual Adjustment to the Return Component of the SOS Administrative Charge ($000 Except per KWH) Residential Type I Type II Hourly 1 Cash Working Capital (Nov-17 to Oct-18) $ 77,373 $ 4,690 $ 8,979 $ 618 2 Short Term Debt (CN 9406), grossed up for franchise tax and PSC assessment 0.45% 0.45% 0.45% 0.45% 3 = 1 x 2 Revenue Requirement at Short Term Debt $ 348 $ 21 $ 40 $ 3 4 Pre-tax of Return (CN 9406), adjusted for Tax Cuts and Jobs Act of 2017 9.51% 9.51% 9.51% 9.51% 5 = 1 x 4 Revenue Requirement at Pre-Tax of Return $ 7,358 $ 446 $ 854 $ 59 6 = 5-3 Incremental Revenue Requirement $ 7,010 $ 425 $ 814 $ 56 7 MWH Sales ( Nov-17 to Oct-18) 9,706,796 885,613 1,744,036 124,502 8 = 6 / 7 per KWH $ 0.00072 $ 0.00048 $ 0.00047 $ 0.00045

Attachment 2 Rider 1 - Standard Offer Service and Schedule PL (Private Area Lighting) s Clean and Redlines Tariff Pages

Baltimore Gas and Electric Company Electric -- Retail 57 PRIVATE AREA LIGHTING ELECTRIC SCHEDULE P L AVAILABILITY: MONTHLY RATES: For unmetered outdoor area lighting of private property. 1. For supply of controlled electricity installation and maintenance of overhead supplied lamp fixtures and lamp renewals as required for each Mercury Vapor (limited to existing installations) 117 100w MV Pendant $9.17 205 175w MV Pendant $11.05 454 400w MV Pend/Flood $16.57 1,090 1000w MV Pendant $30.84 $30.83 Sodium Vapor 120 100w SV Flood (limited to existing installations) $10.71 120 100w SV Pendant $9.18 173 150w SV Pendant $10.72 298 250w SV Pendant $17.88 467 400w SV Pend/Flood $18.30 $18.29 1,130 1000w SV Pendant $48.25 $48.24 Metal Halide (limited to existing installations) 189 100w MH Pulse Teardrop $26.27 $26.26 189 150w MH Pulse Pendant $18.06 $18.05 205 175w MH Pendant $18.03 445 400w MH Spot or Flood $28.09 445 400w MH Pendant $27.78 448 400w MH Pulse Flood/Spot $28.09 448 400w MH Pulse Pendant Gray $27.78 1,090 1000w MH Pend/Flood $45.47 $45.46 2. Where longer than 4-foot upsweep arms are required for such lighting supply, add $3.68 For each span of overhead wires required on existing and additional poles $1.60 For the installation and maintenance of overhead-supplied lamp poles each additional standard distribution wood pole $3.67 For supply of controlled electricity installation and maintenance of underground-supplied lamp fixtures and lamp renewals as required for each Mercury Vapor (limited to existing installations) 205 175w MV Modern/Colonial $12.37 454 400w MV Pend/Flood $14.22 Sodium Vapor 120 100w SV Colonial Modern (limited to existing installations) $10.75 120 100w SV Flood (limited to existing installations) $8.46 120 100w SV Gothic $14.45 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624618) Filed 12/18/1808/31/18 - Effective 02/01/1910/01/18

58 Baltimore Gas and Electric Company Electric -- Retail Schedule PL Continued 120 100w SV Acorn $14.49 120 100w SV Acorn Havre de Grace $15.90 120 100w SV Colonial Premiere $15.04 120 100w SV Acorn Maple Lawn $17.44 120 100w SV Pendant $8.46 173 150w SV Modern/Colonial $11.84 173 150w SV Pendant $8.34 173 150w SV Rectilinear $17.48 173 150w SV Acorn $16.07 173 150w SV Gothic $16.07 173 150w SV Acorn Victorian (limited to existing installations) $26.85 173 150w SV Colonial Premiere $16.59 173 150w SV Acorn Havre de Grace $17.49 173 150w SV Acorn Maple Lawn $19.16 173 150w SV Tear Drop $35.10 298 250w SV Pendant $14.88 298 250w SV Tear Drop $45.04 467 400w SV Pend/Flood $15.90 $15.89 467 400w SV Rectilinear $27.81 $27.80 1,130 1000w SV Pendant $43.35 $43.34 Metal Halide (limited to existing installations) 129 100w MH Colonial $15.02 129 100w MH Acorn Maple Lawn $23.16 129 100w MH Acorn Havre de Grace $21.10 129 100w MH Acorn $19.70 129 100w MH Gothic $19.75 129 100w MH Towson green $22.95 189 150w MH Pulse Acorn Maple Lawn $27.19 $27.18 189 150w MH Pulse Modern $18.90 $18.89 189 150w MH Pulse Pendant $16.96 $16.95 189 150w MH Pulse Acorn $22.75 $22.74 189 150w MH Pulse Acorn Havre de Grace $24.17 $24.16 189 150w MH Pulse Colonial $17.59 $17.58 189 150w MH Pulse Gothic $22.75 $22.74 189 150w MH Pulse Colonial Premiere $19.32 $19.31 189 150w MH Pulse Rectilinear $21.57 $21.56 189 150w MH Pulse Teardrop $26.21 $26.20 205 175w MH Acorn $22.72 205 175w MH Colonial Premiere $17.56 205 175w MH Up Lighting $29.11 205 175w MH Gothic $22.72 205 175w MH Modern $18.86 205 175w MH Pendant $16.93 205 175w MH Rectilinear $21.57 205 175w MH Acorn Havre de Grace $24.13 205 175w MH Acorn Maple Lawn $27.15 205 175w MH Colonial Premiere $19.28 448 400w MH Pulse Rectilinear $29.00 448 400w MH Pulse Flood $21.98 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624618) Filed 12/18/1808/31/18 - Effective 02/01/1910/01/18

Baltimore Gas and Electric Company Electric -- Retail 59 Schedule PL Continued 448 400w MH Pulse Pendant Bronze $23.85 448 400w MH Pulse Pendant Gray $24.45 445 400w MH Flood $21.98 445 400w MH Pendant $23.86 445 400w MH Rectilinear $29.02 445 400w MH Pendant $24.49 1,090 1000w MH Pend/Flood $41.59 $41.58 1,090 1000w MH Rectilinear $57.24 $57.23 Where longer than 4-foot upsweep arms are required on 35-foot embedded wood poles for such lighting supply, add $3.65 3. Lamp Fixtures LED fixtures Light-Emitting Diode* 39 LED 70 Pendant - 39 $9.38 51 LED 100 Pendant - 51 $8.10 72 LED 100 Pendant - 72 $9.96 70 LED 100 Post Top Acorn $25.56 72 LED 100 Post Top Arlington $28.68 72 LED 100 Post Top Colonial $17.44 54 LED 100 Post Top Modern $16.77 70 LED 100 Post Top Decorative Acorn $34.79 52 LED 100 Premiere Colonial $18.40 $18.39 72 LED 150 Pendant - 72 $9.35 88 LED 150 Pendant - 88 $10.42 104 LED 150 Post Top Arlington $29.25 106 LED 150 Post Top Colonial $18.53 $18.52 101 LED 150 Post Top Acorn $26.10 101 LED 150 Post Top Decorative Acorn $35.34 86 LED 150 Tear Drop $33.44 75 LED 150 Premiere Colonial $20.33 129 LED 250 Pendant - 129 $13.45 145 LED 250 Pendant - 145 $13.79 151 LED 250 Tear Drop $42.69 157 LED 400 Pendant - 157 $16.73 273 LED 400 Pendant - 273 $20.41 129 LED 400 Floodlight $15.04 256 LED 1000 Floodlight $29.18 $29.17 *LED naming based on HID equivalent lamp watts 4. For the installation and maintenance of underground supplied lamp poles and cables each 12-foot square wood standard embedded post-top pole $15.66 each 12 foot fiberglass pole $15.66 each 12-foot fiberglass pole with shroud $25.70 each 14 foot fiberglass pole $15.66 each 14-foot embedded fiberglass post-top pole $15.66 each 14-foot fiberglass hinged pole $21.65 each 14-foot fluted black fiberglass pole $30.85 each 19-foot underground pole $22.01 each 20-foot round embedded bronze fiberglass pole each 30-foot round bronze fin $24.90 each 23 foot fiberglass pole with shroud $32.79 each 25-foot embedded metal pole $25.99 each 30-foot embedded metal pole $22.01 each 30-foot round embedded bronze fiberglass $26.79 each 30-foot round embedded bronze-fiberglass pole (incl. 1 arm) $29.54 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624618) Filed 12/18/1808/31/18 - Effective 02/01/1910/01/18

77-A Electric Retail Baltimore Gas and Electric Company Baltimore Gas & Electric Company Current Market-Priced Service Components (Transmission s Effective June 1, 2018) Generation Transmission Total SOS Energy Admin. Charge Applicable Total Generation Transm. incl. GRT, PSC Assess. Transm. incl. GRT, PSC Assess. $/kw 1 Taxes 2 RESIDENTIAL Schedule R Oct. 1, 2018 - May 31, 2019 6.490 0.211 0.013 6.714 1.100-7.814 - Feb. 1, 2019 - May 31, 2019 6.490 0.202 0.013 6.705 1.100-7.805 - Jun. 1, 2019 - Sep. 30, 2019 5.410 0.202 0.010 5.622 1.100-6.722 - Schedule RL Oct. 1, 2018 - May 31, 2019 On-Peak 7.767 0.211 0.015 7.993 1.069-9.062 - Oct. 1, 2018 - May 31, 2019 Int-Peak 6.660 0.211 0.013 6.884 1.069-7.953 - Oct. 1, 2018 - May 31, 2019 Off-Peak 5.834 0.211 0.011 6.056 1.069-7.125 - Feb. 1, 2019 - May 31, 2019 On-Peak 7.767 0.202 0.015 7.984 1.069-9.053 - Feb. 1, 2019 - May 31, 2019 Int-Peak 6.660 0.202 0.013 6.875 1.069-7.944 - Feb. 1, 2019 - May 31, 2019 Off-Peak 5.834 0.202 0.011 6.047 1.069-7.116 - Jun. 1, 2019 - Sep. 30, 2019 On-Peak 7.180 0.202 0.014 7.396 1.069-8.465 - Jun. 1, 2019 - Sep. 30, 2019 Int-Peak 4.789 0.202 0.009 5.000 1.069-6.069 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 4.464 0.202 0.009 4.675 1.069-5.744 - Schedule EV Oct. 1, 2018 - May 31, 2019 On-Peak 13.835 0.211 0.027 14.073 4.410-18.483 - Oct. 1, 2018 - May 31, 2019 Off-Peak 4.050 0.211 0.008 4.269 - - 4.269 - Feb. 1, 2019 - May 31, 2019 On-Peak 13.835 0.202 0.027 14.064 4.410-18.474 - Feb. 1, 2019 - May 31, 2019 Off-Peak 4.050 0.202 0.008 4.260 - - 4.260 - Jun. 1, 2019 - Sep 30, 2019 On-Peak 8.807 0.202 0.017 9.026 3.244-12.270 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 3.677 0.202 0.007 3.886 - - 3.886 - COMMERCIAL & INDUSTRIAL Scheds. G/GU -Type I SOS Oct. 1, 2018 - May 31, 2019 6.068 0.150 0.012 6.230 0.847-7.077 - Feb. 1, 2019 - May 31, 2019 6.068 0.147 0.012 6.227 0.847-7.074 - Jun. 1, 2019 - Sep 30, 2019 5.052 0.147 0.010 5.209 0.847-6.056 - Sched. GS - Type I SOS Oct. 1, 2018 - May 31, 2019 On-Peak 6.894 0.150 0.013 7.057 0.854-7.911 - Oct. 1, 2018 - May 31, 2019 Int-Peak 6.139 0.150 0.012 6.301 0.854-7.155 - Oct. 1, 2018 - May 31, 2019 Off-Peak 6.032 0.150 0.012 6.194 0.854-7.048 - Feb. 1, 2019 - May 31, 2019 On-Peak 6.894 0.147 0.013 7.054 0.854-7.908 - Feb. 1, 2019 - May 31, 2019 Int-Peak 6.139 0.147 0.012 6.298 0.854-7.152 - Feb. 1, 2019 - May 31, 2019 Off-Peak 6.032 0.147 0.012 6.191 0.854-7.045 - Jun. 1, 2019 - Sep. 30, 2019 On-Peak 7.017 0.147 0.014 7.178 0.854-8.032 - Jun. 1, 2019 - Sep. 30, 2019 Int-Peak 4.705 0.147 0.009 4.861 0.854-5.715 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 4.170 0.147 0.008 4.325 0.854-5.179 - Total Total $/kw Sched. SL - Type I SOS 3 Oct. 1, 2018 - May 31, 2019 4.769 0.150 0.009 4.928 - - 4.928 - Feb. 1, 2019 - May 31, 2019 4.769 0.147 0.009 4.925 - - 4.925 - Sched. PL - Type I SOS 3 Oct. 1, 2018 - May 31, 2019 4.769 0.150 0.009 4.928 - - 4.928 - Feb. 1, 2019 - May 31, 2019 4.769 0.147 0.009 4.925 - - 4.925 - Sched. G - Type II SOS Dec. 1, 2018 - Feb. 28, 2019 7.246 0.124 0.014 7.384 0.847-8.231 - Feb. 1, 2019 - Feb. 28, 2019 7.246 0.121 0.014 7.381 0.847-8.228 - Sched. GS - Type II SOS Dec. 1, 2018 - Feb. 28, 2019 On-Peak Energy 8.899 0.124 0.017 9.040 0.854-9.894 - Dec. 1, 2018 - Feb. 28, 2019 Inter-Peak Energy 6.694 0.124 0.013 6.831 0.854-7.685 - Dec. 1, 2018 - Feb. 28, 2019 Off-Peak Energy 6.440 0.124 0.012 6.576 0.854-7.430 - Feb. 1, 2019 - Feb. 28, 2019 On-Peak Energy 8.899 0.121 0.017 9.037 0.854-9.891 - Feb. 1, 2019 - Feb. 28, 2019 Inter-Peak Energy 6.694 0.121 0.013 6.828 0.854-7.682 - Feb. 1, 2019 - Feb. 28, 2019 Off-Peak Energy 6.440 0.121 0.012 6.573 0.854-7.427 - Scheds. GL, P & T - Type II SOS Dec. 1, 2018 - Feb. 28, 2019 On-Peak Energy 9.191 0.124 0.018 9.333 - - 9.333 - Dec. 1, 2018 - Feb. 28, 2019 Inter-Peak Energy 6.912 0.124 0.013 7.049 - - 7.049 - Dec. 1, 2018 - Feb. 28, 2019 Off-Peak Energy 6.710 0.124 0.013 6.847 - - 6.847 - Feb. 1, 2019 - Feb. 28, 2019 On-Peak Energy 9.191 0.121 0.018 9.330 - - 9.330 - Feb. 1, 2019 - Feb. 28, 2019 Inter-Peak Energy 6.912 0.121 0.013 7.046 - - 7.046 - Feb. 1, 2019 - Feb. 28, 2019 Off-Peak Energy 6.710 0.121 0.013 6.844 - - 6.844 - Scheds. GL, P & T - Type II SOS Transmission Demand Charge - - - - - 2.64-2.64 Note: 1 The Adminstrative Charge rates typically change every February, June and October. 2 Tax s: Gross Receipts Tax (GRT) = 2% (Transmission only) PSC Assessment = 0.1937% (Effective October 2018) 3 Charge per lamp-watt ( /lamp-watt) = 4.9254.928 x 0.333 = 1.6401.641 /lamp-watt; Sch. PL rate reflected in lamp fixture and renewal rates, effective February 2019October 2018 Total SOS rates exclude Rider 8 - Energy Cost Adjustment Hourly Administrative Charge = 0.1010.105 effective February 2019October 2018 P. S. C. Md. E-6 (Suppl. 620624) Filed 10/26/1812/18/18 Effective 12/01/1802/01/19

Baltimore Gas and Electric Company Electric -- Retail 57 PRIVATE AREA LIGHTING ELECTRIC SCHEDULE P L AVAILABILITY: MONTHLY RATES: For unmetered outdoor area lighting of private property. 1. For supply of controlled electricity installation and maintenance of overhead supplied lamp fixtures and lamp renewals as required for each Mercury Vapor (limited to existing installations) 117 100w MV Pendant $9.17 205 175w MV Pendant $11.05 454 400w MV Pend/Flood $16.57 1,090 1000w MV Pendant $30.83 Sodium Vapor 120 100w SV Flood (limited to existing installations) $10.71 120 100w SV Pendant $9.18 173 150w SV Pendant $10.72 298 250w SV Pendant $17.88 467 400w SV Pend/Flood $18.29 1,130 1000w SV Pendant $48.24 Metal Halide (limited to existing installations) 189 100w MH Pulse Teardrop $26.26 189 150w MH Pulse Pendant $18.05 205 175w MH Pendant $18.03 445 400w MH Spot or Flood $28.09 445 400w MH Pendant $27.78 448 400w MH Pulse Flood/Spot $28.09 448 400w MH Pulse Pendant Gray $27.78 1,090 1000w MH Pend/Flood $45.46 2. Where longer than 4-foot upsweep arms are required for such lighting supply, add $3.68 For each span of overhead wires required on existing and additional poles $1.60 For the installation and maintenance of overhead-supplied lamp poles each additional standard distribution wood pole $3.67 For supply of controlled electricity installation and maintenance of underground-supplied lamp fixtures and lamp renewals as required for each Mercury Vapor (limited to existing installations) 205 175w MV Modern/Colonial $12.37 454 400w MV Pend/Flood $14.22 Sodium Vapor 120 100w SV Colonial Modern (limited to existing installations) $10.75 120 100w SV Flood (limited to existing installations) $8.46 120 100w SV Gothic $14.45 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624) Filed 12/18/18 - Effective 02/01/19

58 Baltimore Gas and Electric Company Electric -- Retail Schedule PL Continued 120 100w SV Acorn $14.49 120 100w SV Acorn Havre de Grace $15.90 120 100w SV Colonial Premiere $15.04 120 100w SV Acorn Maple Lawn $17.44 120 100w SV Pendant $8.46 173 150w SV Modern/Colonial $11.84 173 150w SV Pendant $8.34 173 150w SV Rectilinear $17.48 173 150w SV Acorn $16.07 173 150w SV Gothic $16.07 173 150w SV Acorn Victorian (limited to existing installations) $26.85 173 150w SV Colonial Premiere $16.59 173 150w SV Acorn Havre de Grace $17.49 173 150w SV Acorn Maple Lawn $19.16 173 150w SV Tear Drop $35.10 298 250w SV Pendant $14.88 298 250w SV Tear Drop $45.04 467 400w SV Pend/Flood $15.89 467 400w SV Rectilinear $27.80 1,130 1000w SV Pendant $43.34 Metal Halide (limited to existing installations) 129 100w MH Colonial $15.02 129 100w MH Acorn Maple Lawn $23.16 129 100w MH Acorn Havre de Grace $21.10 129 100w MH Acorn $19.70 129 100w MH Gothic $19.75 129 100w MH Towson green $22.95 189 150w MH Pulse Acorn Maple Lawn $27.18 189 150w MH Pulse Modern $18.89 189 150w MH Pulse Pendant $16.95 189 150w MH Pulse Acorn $22.74 189 150w MH Pulse Acorn Havre de Grace $24.16 189 150w MH Pulse Colonial $17.58 189 150w MH Pulse Gothic $22.74 189 150w MH Pulse Colonial Premiere $19.31 189 150w MH Pulse Rectilinear $21.56 189 150w MH Pulse Teardrop $26.20 205 175w MH Acorn $22.72 205 175w MH Colonial Premiere $17.56 205 175w MH Up Lighting $29.11 205 175w MH Gothic $22.72 205 175w MH Modern $18.86 205 175w MH Pendant $16.93 205 175w MH Rectilinear $21.57 205 175w MH Acorn Havre de Grace $24.13 205 175w MH Acorn Maple Lawn $27.15 205 175w MH Colonial Premiere $19.28 448 400w MH Pulse Rectilinear $29.00 448 400w MH Pulse Flood $21.98 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624) Filed 12/18/18 - Effective 02/01/19

Baltimore Gas and Electric Company Electric -- Retail 59 Schedule PL Continued 448 400w MH Pulse Pendant Bronze $23.85 448 400w MH Pulse Pendant Gray $24.45 445 400w MH Flood $21.98 445 400w MH Pendant $23.86 445 400w MH Rectilinear $29.02 445 400w MH Pendant $24.49 1,090 1000w MH Pend/Flood $41.58 1,090 1000w MH Rectilinear $57.23 Where longer than 4-foot upsweep arms are required on 35-foot embedded wood poles for such lighting supply, add $3.65 3. Lamp Fixtures LED fixtures Light-Emitting Diode* 39 LED 70 Pendant - 39 $9.38 51 LED 100 Pendant - 51 $8.10 72 LED 100 Pendant - 72 $9.96 70 LED 100 Post Top Acorn $25.56 72 LED 100 Post Top Arlington $28.68 72 LED 100 Post Top Colonial $17.44 54 LED 100 Post Top Modern $16.77 70 LED 100 Post Top Decorative Acorn $34.79 52 LED 100 Premiere Colonial $18.39 72 LED 150 Pendant - 72 $9.35 88 LED 150 Pendant - 88 $10.42 104 LED 150 Post Top Arlington $29.25 106 LED 150 Post Top Colonial $18.52 101 LED 150 Post Top Acorn $26.10 101 LED 150 Post Top Decorative Acorn $35.34 86 LED 150 Tear Drop $33.44 75 LED 150 Premiere Colonial $20.33 129 LED 250 Pendant - 129 $13.45 145 LED 250 Pendant - 145 $13.79 151 LED 250 Tear Drop $42.69 157 LED 400 Pendant - 157 $16.73 273 LED 400 Pendant - 273 $20.41 129 LED 400 Floodlight $15.04 256 LED 1000 Floodlight $29.17 *LED naming based on HID equivalent lamp watts 4. For the installation and maintenance of underground supplied lamp poles and cables each 12-foot square wood standard embedded post-top pole $15.66 each 12 foot fiberglass pole $15.66 each 12-foot fiberglass pole with shroud $25.70 each 14 foot fiberglass pole $15.66 each 14-foot embedded fiberglass post-top pole $15.66 each 14-foot fiberglass hinged pole $21.65 each 14-foot fluted black fiberglass pole $30.85 each 19-foot underground pole $22.01 each 20-foot round embedded bronze fiberglass pole each 30-foot round bronze finished $24.90 each 23 foot fiberglass pole with shroud $32.79 each 25-foot embedded metal pole $25.99 each 30-foot embedded metal pole $22.01 each 30-foot round embedded bronze fiberglass $26.79 each 30-foot round embedded bronze-fiberglass pole (incl. 1 arm) $29.54 Continued on Next Page P.S.C. Md. -- E-6 (Suppl. 624) Filed 12/18/18 - Effective 02/01/19

77-A Electric Retail Baltimore Gas and Electric Company Baltimore Gas & Electric Company Current Market-Priced Service Components (Transmission s Effective June 1, 2018) Generation Transmission Total SOS Energy Admin. Charge Applicable Total Generation Transm. incl. GRT, PSC Assess. Transm. incl. GRT, PSC Assess. $/kw 1 Taxes 2 RESIDENTIAL Schedule R Feb. 1, 2019 - May 31, 2019 6.490 0.202 0.013 6.705 1.100-7.805 - Jun. 1, 2019 - Sep. 30, 2019 5.410 0.202 0.010 5.622 1.100-6.722 - Schedule RL Feb. 1, 2019 - May 31, 2019 On-Peak 7.767 0.202 0.015 7.984 1.069-9.053 - Feb. 1, 2019 - May 31, 2019 Int-Peak 6.660 0.202 0.013 6.875 1.069-7.944 - Feb. 1, 2019 - May 31, 2019 Off-Peak 5.834 0.202 0.011 6.047 1.069-7.116 - Jun. 1, 2019 - Sep. 30, 2019 On-Peak 7.180 0.202 0.014 7.396 1.069-8.465 - Jun. 1, 2019 - Sep. 30, 2019 Int-Peak 4.789 0.202 0.009 5.000 1.069-6.069 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 4.464 0.202 0.009 4.675 1.069-5.744 - Schedule EV Feb. 1, 2019 - May 31, 2019 On-Peak 13.835 0.202 0.027 14.064 4.410-18.474 - Feb. 1, 2019 - May 31, 2019 Off-Peak 4.050 0.202 0.008 4.260 - - 4.260 - Jun. 1, 2019 - Sep 30, 2019 On-Peak 8.807 0.202 0.017 9.026 3.244-12.270 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 3.677 0.202 0.007 3.886 - - 3.886 - COMMERCIAL & INDUSTRIAL Scheds. G/GU -Type I SOS Feb. 1, 2019 - May 31, 2019 6.068 0.147 0.012 6.227 0.847-7.074 - Jun. 1, 2019 - Sep 30, 2019 5.052 0.147 0.010 5.209 0.847-6.056 - Sched. GS - Type I SOS Feb. 1, 2019 - May 31, 2019 On-Peak 6.894 0.147 0.013 7.054 0.854-7.908 - Feb. 1, 2019 - May 31, 2019 Int-Peak 6.139 0.147 0.012 6.298 0.854-7.152 - Feb. 1, 2019 - May 31, 2019 Off-Peak 6.032 0.147 0.012 6.191 0.854-7.045 - Jun. 1, 2019 - Sep. 30, 2019 On-Peak 7.017 0.147 0.014 7.178 0.854-8.032 - Jun. 1, 2019 - Sep. 30, 2019 Int-Peak 4.705 0.147 0.009 4.861 0.854-5.715 - Jun. 1, 2019 - Sep. 30, 2019 Off-Peak 4.170 0.147 0.008 4.325 0.854-5.179 - Total Total $/kw Sched. SL - Type I SOS 3 Feb. 1, 2019 - May 31, 2019 4.769 0.147 0.009 4.925 - - 4.925 - Sched. PL - Type I SOS 3 Feb. 1, 2019 - May 31, 2019 4.769 0.147 0.009 4.925 - - 4.925 - Sched. G - Type II SOS Feb. 1, 2019 - Feb. 28, 2019 7.246 0.121 0.014 7.381 0.847-8.228 - Sched. GS - Type II SOS Feb. 1, 2019 - Feb. 28, 2019 On-Peak Energy 8.899 0.121 0.017 9.037 0.854-9.891 - Feb. 1, 2019 - Feb. 28, 2019 Inter-Peak Energy 6.694 0.121 0.013 6.828 0.854-7.682 - Feb. 1, 2019 - Feb. 28, 2019 Off-Peak Energy 6.440 0.121 0.012 6.573 0.854-7.427 - Scheds. GL, P & T - Type II SOS Feb. 1, 2019 - Feb. 28, 2019 On-Peak Energy 9.191 0.121 0.018 9.330 - - 9.330 - Feb. 1, 2019 - Feb. 28, 2019 Inter-Peak Energy 6.912 0.121 0.013 7.046 - - 7.046 - Feb. 1, 2019 - Feb. 28, 2019 Off-Peak Energy 6.710 0.121 0.013 6.844 - - 6.844 - Scheds. GL, P & T - Type II SOS Transmission Demand Charge - - - - - 2.64-2.64 Note: 1 The Adminstrative Charge rates typically change every February, June and October. 2 Tax s: Gross Receipts Tax (GRT) = 2% (Transmission only) PSC Assessment = 0.1937% (Effective October 2018) 3 Charge per lamp-watt ( /lamp-watt) = 4.925 x 0.333 = 1.640 /lamp-watt; Sch. PL rate reflected in lamp fixture and renewal rates, effective February 2019 Total SOS rates exclude Rider 8 - Energy Cost Adjustment Hourly Administrative Charge = 0.101 effective February 2019 P. S. C. Md. E-6 (Suppl. 624) Filed 12/18/18 Effective 02/01/19