Meter and Submeter Shops
Approved Electric Meter Shops
In accordance with COMAR1 20.50.06.01A.(2), and COMAR 20.25 the electric meter shops on this list are approved by the Commission.
| Operator of Meter Shop | Location | |
|---|---|---|
| Allegheny Power | 301 South 7th Street, Building #1 Connellsville, PA 15425 (724) 626-5226 | |
| Vision Metering LLC | 7 Ross Cannon Street York, SC 29745 (803) 628-0035 | |
| Baltimore Gas & Electric Company | Rutherford Business Center, 7210 Windsor Blvd. Baltimore, MD 21244 (410) 597-6752 | |
| Town of Berlin | 113 Schoolfield Berlin, MD 21813 (410) 641-3401 | |
| Choptank Electric Cooperative | 24820 Meetinghouse Rd. Denton, MD 21629 (410) 479-8587 | |
| Delmarva Power | Rte. 273 & I-95, P.O. Box 9239 Newark, DE 19714 (302) 454-4156 | |
| Easton Utilities Commission | 219 N. Washington Street Easton, MD 21601 (410) 822-6110 | |
| Hagerstown Municipal Electric | 425 East Baltimore Street Hagerstown, MD 21740 (301) 790-2600 | |
| MET Laboratories, Inc. | 914 W. Patapsco Avenue Baltimore, MD 21230 (410) 354-3300 | |
| Potomac Electric Power Company | 8300 Old Marlboro Pike Forestville, MD 20772 (301) 967-5361 | |
| Southern Maryland Electric Cooperative | 15085 Burnt Store Rd. Hughesville, MD 20637 (301) 274-4315 | |
| Thurmont Municipal Light Company | 10 Frederick Road Thurmont, MD 21788 (301) 271-7313 | |
| HB Electrical Testing, Inc. | 3137 Flanders Court Waldorf, MD 20602 (301) 645-9018 |
Approved Electric Submeters
| Manufacturer | Type Number | Current Transformer | |
|---|---|---|---|
| ABB, Elster | ABS-5, REX-5, AB1, A1D, A1T+, A1RL | ||
| ADEC | EMS-8000 | ||
| Austin International, Inc. | Vision Watthour Meter V2S, V2SR, V12S, V12SR, V1S, V1SR | ||
| Dent Instruments | Power Scout PS3HD, PS12HD, PS24HD, PS48HD | ||
| Duncan | MK, MQ, MH2, MG2, JH2A, MS, MS-1, 12S, MTNS12S, 16S | ||
| E-Mon Corporation | E-MON D-MON Electronic KWH Model 208100 | Not applicable | |
| EZ Meter | RGB | ||
| General Electric | 130, I50S, I55S, I60 S I-70 watt-hour[1] I70S/A, IM70S/A, IW70S/A, I70S/1, I70S/2 KVS, KV-3PH, KV2, KV2C V 3A,6A,62,65,66,612S, EV, VM-3A,4A,63,64 i210, i210+C, IM70S | ||
| Global Power Products (formerly North American Power Products) | VT-2 solid state meter | Not applicable | |
| GridGear | GG Solid State Meter | ||
| Integrated Metering Systems, Inc. | MMD1202001-SCC MMD1202001 Blue Series 3 phase | CT200148BKSO-0.72 CT200148RDSO-0.72 CT200148BLSO-0.72 CT200148BKSO-0.67 CT200148RDSO-0.67 CT200148BLSO-0.67 | |
| Intellimeter Canada Inc. | TX120X00X TX120-X2X | 100A, CTR 2500:1A, Internal PCB Mounted 200A, CTR 2000:1A; externally mounted | |
| Landis & Gyr | MS2, MSK, MTNS, MR2S, ML2S, DX MS, MS, MSE, MX, Focus: ALF, AXS4, AXS4e, AXR, AXRSD, E650 S4x | ||
| LEVITON | 8106, 8112, 8118, 8124 (100mA) | ||
| LEVITON | MSNCT-1SC, MSNCT-2SC, MDNCT-1SC, MDNCT-2SC | ||
| Sangamo | S-12-S, J5S watt-hour Class 200, 240v | ||
| Nexgrid | iQ pro, Aurium Pro | ||
| SATEC, Inc. | EM920, EM133, BFM136 | ||
| Schlumberger | Centron: C1S and CN1S models (all), Centron Polyphase, Sentinel, J, J2S, J3S, J4S, J5S, SL5S S12S, SL12S, Vectron: SV2S, P20S, P20SU | ||
| Sensus | iCon, iConA | ||
| Siemens / L&G | Altimus: AX, AL, ALT, SEM3 | ||
| QUADLOGIC | S-20 Socket Meter S-10 In-unit Residential Meter RSM 5 Commercial Meter Minicloset 5 Multi-tenet Meter Minicloset 5c Multi-tenet Meter QBrick6 | ||
| Schneider Electric | EM4880 (80mA) | ||
| Technology Research Corp. | 18020-001[2], 2-element 120/208 VAC 2 Æ or 120/240 VAC 1 Æ 3-wire, 60HZ with electromechanical counter | 200 amp primary max.[3] 0.2 amp secondary max. | |
| Triacta PowerHawk | 6312, 6303 (80mA) | ||
| Triacta PowerHawk | 6112, 6103, 4106, 4112, 4118, 4124 (100mA) | ||
| United Metering Services (UMS) | Electronic watt-hour[4] meter with electromechanical counter, P/N 22120E, 120/208/240 VAC, 2-element | 200 amp primary max.[5] 0.2 amp secondary | |
| Westinghouse | D4S3, D5S3, D4S5U, D2S, C, D, CS, D4S, D4-1 D5S, D5S Network |
Customer Request For Meter Tests
Maryland regulations state that “Upon request by a customer and at no charge, the utility shall test the accuracy of the meter serving the customer.” However, a utility is not required to perform a customer-requested meter test more than once during an 18-month period. A meter test may be performed at: (a) The metering location; (b) The utility’s meter shop; or (c) An approved meter shop. Moreover, the customer, or his representative, may be present when the meter is tested. [COMAR 20.50.06.06(1) and 20.55.07.04] If you dispute the accuracy of your bill and meter, you should contact your utility first at the number below:
- BGE: 800-685-0123
- PEPCO: 202-833-7500
- DELMARVA: 800-375-7117
- POTOMAC EDISON: 800-686-0011
- SMECO: 888-440-3311
- WASHINGTON GAS: 800-752-7520
If your meter had been tested previously by the utility within the last 18 months, or you are not satisfied with the results of the utility’s meter test, you may make written application to the Commission for a Referee Test pursuant to COMAR 20.50.06.07 for electric or 20.55.07.05 for gas. The regulations state that “Upon written application to the Commission by a customer or a utility, a test will be made of the customer’s meter as soon as practicable by a representative of the Commission.” The charges for a single Referee Test are as follows:
- Watt-hour meter: $10 (RESIDENTIAL)
- Combination watt-hour and demand meter: $20 (COMMERCIAL)
- Gas meter: $10 (RESIDENTIAL OR COMMERCIAL)
Need Help?
The Public Service Commission is here to help. Please contact us with any questions.