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Contact Information
(860) 446-4000
fax: (860) 446-4098
E-Mail Us

295 Meridian Street
Groton, CT 06340

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Conservation Tip
Splash Test for a leaking toilet by adding food coloring to the tank. If any color appears in the bowl after 30 minutes, your toilet is leaking. Leaking toilets can waste 200 gallons of water a day.
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Electric Rates

Rates below applicable to Groton Utility Customers only.

Residential Electric Rate Schedule

(Rate: RS)

Applicable to the entire electrical requirements in a single-family dwelling and
appurtenances, or in an individual apartment, or in common use areas of apartment
buildings or condominium buildings where residential usage exceeds 50% of monthly metered energy. The net metering rider is also applicable to any customer with approved self-generation.

Available throughout the service area from existing facilities of adequate character
and capacity.

Monthly Rate is the sum of Customer Charge, Energy Charge, any Purchased
Power Adjustment, and any Transmission Cost Adjustment:

Customer Charge: $11.50 per month
Winter Energy Charges: 13.074 cents per kWh
Summer Energy Charges: 13.774 cents per kWh

Where revenues are subject to 8.5% GRT

Customer Charge: $11.71 per month
Winter Energy Charges: 13.165 cents per kWh
Summer Energy Charges: 13.865 cents per kWh

Purchased Power Adjustment An adjustment will be applied to every kWh
sold to reflect any difference between the base power costs included in rates and the
actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

SEASONAL DEFINITION Winter refers to all billings between October 1 and May 31. Summer refers to all billings between June 1 and September 30.

MULTIPLE FAMILY DWELLINGS may be served hereunder by increasing the single family dwelling Customer Charge by one-half for each additional family unit served, regardless of occupancy.

TERM OF CONTRACT is for one year and thereafter until termination.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

Small General Service Electric Rate Schedule

(Rate: SGS)


Applicable to the entire electrical requirements for light, heat, and power on the
Customer's premises for small commercial customers for which no other rate schedule is applicable. The net metering rider is also applicable to any customer on this rate with approved self-generation.

Available throughout the service area from existing facilities of adequate character
and capacity.

Character of Service: Delivery and metering at one standard secondary
distribution voltage.

Monthly Rate is the sum of Customer Charge, Energy Charge, Demand Charge,
any Purchased Power Adjustment, and any Transmission Cost Adjustment.

Customer Charge: $14.50 per month
Demand Charge: $7.254 per KW of Demand

Winter Energy Charges: 10.498 cents per kWh
Summer Energy Charges: 11.015 cents per kWh

Rate Applicable to Customers who are not subject to the Gross Revenue Tax:

Customer Charge: $13.27 per month
Demand Charge: $6.64 per KW of Demand

Winter Energy Charges: 10.318 cents per kWh
Summer Energy Charges: 10.835 cents per kWh

Purchased Power Adjustment An adjustment will be applied to every kWh
sold to reflect any difference between the base power costs included in rates and the
actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

SEASONAL DEFINITION Winter refers to all billings between October 1 and May 31. Summer refers to all billings between June 1 and September 30.

DETERMINATION OF DEMAND: Where Customer has a demand meter, the
Department will measure the maximum 15- minutes kW demand in the billing month as the Billing Demand; Customers without demand meters will be billed for .5 KW per month. Demand meters will be installed on customers with energy use of greater than 300 kWhs per month.

TERM OF CONTRACT: One year and thereafter until thirty days written notice of termination.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

Medium General Service Electric Rate Schedule

(Rate: MGS)

Applicable to the entire normal electrical requirements for light, heat, and power on
the Customer's premises for customers whose normal peak demand is from 10 to 99
kilowatts. Normal requirements include those that the customer usually self-generates.

Available throughout the service area from existing facilities of adequate character
and capacity.

Character of Service: Delivery and metering at standard secondary voltage.

Monthly Rate is the sum of Customer Charge, Demand Charge, Energy Charge,
Reactive Charge, any Purchased Power Adjustment, and any Transmission Cost
Adjustment for the appropriate service voltage.

Rate Applicable to Customers who are subject to the Gross Revenue Tax:

Service Voltage Secondary Distribution
Customer Charge Per Month $32.79
Distribution Demand Charge per kW of Billing Demand $9.00
Reactive C harge per kVar of Excess Reactive Demand $0.59
Energy Charge per kWh (Winter) $0.10076
Energy Charge per kWh (Summer) $0.10631

Rate Applicable to Customers who are not subject to the Gross Revenue Tax

Service Voltage Secondary Distribution
Customer Charge Per Month $32.06
Distribution Demand Charge per kW of Billing Demand $8.235
Reactive C harge per kVar of Excess Reactive Demand $0.59
Energy Charge per kWh (Winter) $0.09922
Energy Charge per kWh (Summer) $0.10478

Purchased Power Adjustment An adjustment will be applied to every kWh
sold to reflect any difference between the base power costs included in rates and the
actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

SEASONAL DEFINITION Winter refers to all billings between October 1 and May 31. Summer refers to all billings between June 1 and September 30.

DETERMINATION OF DEMAND: The Department will measure the highest 15- minutes kW demand in the billing month. Billing Demand shall be the greatest of 1) That measured demand to the nearest whole kilowatt or 2) 90% of the greatest such measured demand in the preceding eleven months.

DETERMINATION OF REACTIVE DEMAND: Where Billing Demand has exceeded 500 kilowatts, the Department will continuously measure the 15-minute kilovar ampere leading or lagging reactive demand. The greatest leading or lagging reactive demand over 14% of the greatest kilowatt demand in any 15-minute period in the billing month shall be the Excess Reactive Demand.

TERM OF CONTRACT: One year and thereafter until thirty days written notice of termination. A longer term may be required for an extensive installation.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

** Customers with larger loads or that have special requirements may call our Major Accounts Representative at 860-446-4008 to discuss your requirements.


Large General Service Electric Rate Schedule
(Rate: LGS)

Applicable to the entire normal electrical requirements for light, heat, and power on
the Customer's premises up to 10,000 kilowatts for which no other rate schedule is
applicable. Normal requirements include those kilowatt hours that the customer usually self-generates.

Available throughout the service area from existing facilities of adequate character
and capacity.

Character of Service:  Delivery and metering at one standard voltage.

Monthly Rate is the sum of Customer Charge, Demand Charge, Energy Charge,
Reactive Charge, any Purchased Power Adjustment, and any Transmission Cost
Adjustment for the appropriate service voltage.

Rate Applicable to Customers who are subject to the Gross Revenue Tax

Service Voltage Secondary Distribution Primary Distribution Subtransmission
Customer Charge $80.00 $80.00 $80.00
Distribution Demand Charge per kW of Billing Demand $8.798 $8.798 $8.622
Reactive C harge per kVar of Excess Reactive Demand $0.59 $0.54 $0.50
Energy Charge per kWh (Winter) $0.09492 $0.09335 $0.09194
Energy Charge per kWh (Summer) $0.10032 $0.09932 $0.09782

Rate Applicable to Customers who are not subject to the Gross Revenue Tax

Service Voltage Secondary Distribution Primary Distribution Subtransmission
Customer Charge $80.00 $80.00 $80.00
Distribution Demand Charge per kW of Billing Demand $8.050 $8.050 $7.889
Reactive C harge per kVar of Excess Reactive Demand $0.59 $0.54 $0.50
Energy Charge per kWh (Winter) $0.09381 $0.09226 $0.09087
Energy Charge per kWh (Summer) $0.09921 $0.09823 $0.09675

Purchased Power Adjustment An adjustment will be applied to every kWh
sold to reflect any difference between the base power costs included in rates and the
actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

SEASONAL DEFINITION Winter refers to all billings between October 1 and May 31. Summer refers to all meter billings between June 1 and September 30.

DETERMINATION OF DEMAND: The Department will measure the highest 15-minutes kW demand in the billing month.Distribution Billing Demand shall be the greatest of 1) That measured demand to the nearest whole kilowatt, 2) 80% of the greatest such measured demand in the preceding eleven months, or 3) 50 kilowatts.

DETERMINATION OF REACTIVE DEMAND: Where Billing Demand has exceeded 500 kilowatts, the Department will continuously measure the 15-minute kilovar ampere leading or lagging reactive demand. The greatest leading or lagging reactive demand over 14% of the greatest kilowatt demand in any 15-minute period in the billing month shall be the Excess Reactive Demand.

TERM OF CONTRACT: One year and thereafter until thirty days written notice of termination. A longer term may be required for an extensive installation.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

Street and Area Lighting Service
(Rate: SAL)

Applicable to public or private customers for standard street and area lighting installations provided and maintained by the Department to render 4,000 annual hours of lighting.

Overhead installation is a light fixture attached to an existing overhead distribution system pole. Underground installation is a light fixture attached to a new pole served from an existing underground distribution system.

Available throughout the service area from existing facilities of adequate character and capacity.

Monthly Rate is the sum of Light Charge, any Purchased Power Adjustment, and any Transmission Cost Adjustment:

   

Per Light Charge

Light Rating in Lumens, Watts and Type

Overhead

Underground

       
Incandescent    
  600  L,         60W Red Fire Alarm $    4.14 NA
  1,000  L,         92W $    5.15      NNI NA
  7,000  L,       500W Floodlight $  21.58      NNI NA
       
Mercury Vapor    
  3,000  L,       100W $    6.14      NNI $  10.54 NNI   
  7,000  L,       175W $   10.09     NNI $  13.16 NNI
  10,000   L,      250W $   12.11     NNI NA
  20,000  L,       400W $   16.12     NNI NA
       
High Pressure Sodium    
  4,000  L,         50W $    7.92

NA

  5,800  L,         70W $    8.67 $  13.59
  9,500  L,       100W $    10.82

NA

  16,000  L,       150W  $   13.24   $  18.98
  22,000  L,       200W $   14.91 NA
  50,000  L,       400W $   21.10 NA
  27,000  L,       250W Floodlight $   18.46 NA
  50,000  L,       400W Floodlight $   20.91 NA
       
Metal Halide    
  12,000  L,       175W

N/A

$  16.23
       
NA       - Never Available    
NNI      - No New Installation    

PURCHASED POWER ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base power costs included in rates and the actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

CONTRACT TERM is three years for each overhead lighting installation and five years for each underground lighting installation.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

High Voltage Large General Service
Rate: HVLGS


APPLICABLE to the entire normal electrical requirements for light, heat, and power on the Customer's premises where Customer’s full energy usage exceeds 10,000 kilowatts per month and where customer is served via dual feeder delivery at a standard subtransmission voltage, nominally at 33kV.

AVAILABLE throughout the service area from existing facilities of adequate character and capacity.

CHARACTER OF SERVICE: Delivery and metering at sub-transmission voltage.

MONTHLY RATE is the sum of Customer Charge, Demand Charge, Energy Charge, Reactive Charge, and any Purchased Power Adjustment, and any Transmission Cost Adjustment for the appropriate service voltage.

Rate Applicable to Customers who are subject to the Gross Revenue Tax:

Distribution Demand Charge per kW of Billing Demand: $10.76

Generation & Transmission Demand Charge per kW:

Winter: $31.845
Summer: $33.675

Reactive Charge per kVar of Excess Reactive Demand: $ 0.50

Generation & Transmission Energy Charge per kW:

Winter: $0.08257
Summer: $0.08757

Rate Applicable to Customers who are not subject to the Gross Revenue Tax:

Distribution Demand Charge per kW of Billing Demand: $9.85

Generation & Transmission Demand Charge per kW:

Winter: $31.671
Summer: $33.501

Reactive Charge per kVar of Excess Reactive Demand: $ 0.50

Generation & Transmission Energy Charge per kW:

Winter: $0.08210
Summer: $0.08710

EXCESS KWH refers to energy in excess of a base amount determined by multiplying the distribution billing demand by 365. The customer shall pay the transmission delivery charge, the PPA and the TCA but does not pay the generation energy charge for this base amount.

PURCHASED POWER ADJUSTMENT: An adjustment will be applied to every kWh sold to reflect any difference between the base power costs included in rates and the actual power costs (not including transmission) billed to the Department for its load.

TRANSMISSION COST ADJUSTMENT: An adjustment will be applied to every kWh sold to reflect any difference between the base transmission costs included in rates and the actual transmission costs charged to the Department.

SEASONAL DEFINITION Winter refers to all billings between October 1 and May 31. Summer refers to all billings between June 1 and September 30.

DETERMINATION OF DEMAND: The Department will measure the highest 15- minutes kW demand in the billing month. Distribution Billing Demand shall be the greatest of 1) That measured demand to the nearest whole kilowatt or 2) 90% of the greatest such measured demand in the preceding eleven months.
Generation Billing Demand shall be that measured demand to the nearest whole kilowatt.

DETERMINATION OF REACTIVE DEMAND: Where Billing Demand has exceeded 500 kilowatts, the Department will continuously measure the 15-minute kilovar ampere leading or lagging reactive demand. The greatest leading or lagging reactive demand over 14% of the greatest kilowatt demand in any 15-minute period in the billing month shall be the Excess Reactive Demand.

TERM OF CONTRACT: One year and thereafter until thirty days written notice of termination. A longer term may be required for an extensive installation.

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

Net Metering Rider
Applicable to Customers on Rates RS and SGS with Alernate Power Source.

 

AVAILABILITY: This rider is applicable to Customers with approved Alternate Power Source(s) (“APS”), as defined below, of electricity (with a capacity of less than 10 KW) other than electricity supplied by Groton Utilities (GU). Customer generation on Customer’s premises relieves customers from paying for purchase of power to the extent of such generation, but does not relieve GU of the obligation to deliver all power requirements.

DEFINITIONS:

Alternate Power Sources (APS): Any non-utility electric energy source located on the Customer’s premises and approved by GU to provide electric power service to the Customer.

Capacity Responsibility Obligation of GU: GU’s Responsibility Obligation shall consist of the sum of Partial Requirements Service, and Standby Delivery Service, mutually agreed upon by GU and the Customer that is adequate to meet the Customer’s expected power requirements.

Interconnection Costs: Any and all costs attributable to the Customer’s decision
to interconnect and operate its APS in parallel with the GU electric system. All
interconnections must conform to GU equipment and engineering standards as set forth in Policy.

Metering Costs: Any and all costs above and beyond that normally needed to
provide full requirements service that are attributable to the Customer’s decision to
interconnect and operate its APS in parallel with the GU electric system. All metering installations must conform to GU equipment and engineering standards as set forth in Policy.

Parallel Operation: The Customer’s APS must be operated in compliance with
the GU Policy for parallel operation of self-generating facilities. GU may suspend
parallel operations of the Customer’s APS if, in GU’s opinion, continued operation would endanger the operation, physical integrity of any GU equipment or personnel or if such operation would cause or contribute to a system emergency.

METERING REQUIREMENTS: Metering equipment shall be installed, at Customer’s expense, for the purpose of accurate measurement of the electricity supplied by GU to the net-metering Customer and accurate measurement of the total electric usage by the Customer, including the Customer’s own generation. Such metering must be approved by GU. TECHNICAL REQUIREMENTS
DESCRIBED HERE OR ELSEWHERE.

BILLING FOR NET METERING CUSTOMERS: The net metering Customer shall be billed the monthly customer charge, and the transmission and distribution charges for Customer’s full load which are part of the bundled rates of the Residential and Small General Service rate schedules. These rate components are shown below. Customer shall be billed the generation charge, any Purchased Power Adjustment, and any Transmission Cost Adjustment charge only for Customer’s net usage, representing the electricity supplied by GU less the electricity supplied by the Customer’s APS back to GU’s facilities during any billing period. If Customer’s net usage is negative (customer generation fed back to the utility exceeds generation supplied by the utility) during a billing period, Customer shall be credited at the applicable generation, Purchased Power Adjustment, and any Transmission Cost
Adjustment rate for such generation.

Distribution and Transmission Delivery Charges

Generation & Transmission Demand Charge per kW:

Rate RS: $0.04915 per kWh
Rate SGS: $0.05048 per kWh

RULES AND REGULATIONS of the Department governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in the Department.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

Primary Wheeling Service

APPLICABLE for wheeling service within the GU system, to any customers who are eligible to receive service under the HVLGS, rate for the delivery of electric generation services produced at a Customer’s location over the GU system to another location occupied by Customer which is also served by GU. Customers who utilize any part of GU’s delivery system to wheel the Customer’s self generation must comply with GU’s Interconnection Policy and shall pay this tariff for wheeling service.

AVAILABLE throughout GU's service area from existing facilities of adequate character and capacity subject to the technical requirements of GU.

CHARACTER OF SERVICE: Dual feeder delivery and metering at a standard
subtransmission voltage, nominally 33 kV.

MONTHLY BILL is the sum of the Distribution Demand Charge plus the Transmission Demand Charge, multiplied by the Wheeling Demand. Customer may also be eligible for a Distribution Demand Ratchet Credit based on charges due as a result of the Customer’s HVLGS load.


Wheeling Rate Applicable to Customers who are subject to the Gross Revenue Tax:

Distribution Demand Charge: $10.76 per kilowatt of Wheeling Demand
Transmission Demand Charge: $ 1.823 per kilowatt of Wheeling Demand

Wheeling Rate Applicable to Customers who are not subject to the Gross Revenue Tax:

Distribution Demand Charge: $ 9.85 per kilowatt of Wheeling Demand
Transmission Demand Charge: $ 1.668 per kilowatt of Wheeling Demand

DISTRIBUTION DEMAND RATCHET CREDIT: If the Customer’s own generation fails or is taken down for maintenance during a month, causing the Customer’s HVLGS demand to increase, the HVLGS rate Distribution Billing Demand will increase for the next 11 months, due to the ratchet on the Distribution Demand Charge. As long as this increase in HVLGS load does not occur during the hour of Connecticut peak load which determines GU’s capacity obligation, GU may calculate and provide a credit on the Wheeling Rate that reflects the amount of the HVLGS billing ratchet caused by the cessation of the Customer’s generation.

MEASUREMENT OF WHEELING DEMAND: The Department will continuously measure the 15-minute kilowatt demand in the billing month of the customer generation that is being wheeled by GU. The Wheeling Demand shall be the greatest such measured demand during the billing month.

FORCE MAJEURE: In a billing month in which Customer's generation facilities are idled during more than 365 hours by an event of Force Majeure on GU’s delivery system, the Wheeling Demand Charges shall be prorated to the hours not affected by Force Majeure.

NOTICE OF LOAD CHANGE: The Customer shall respond to any written request from GU concerning forecasts of the Customer's load and generation.

TERM OF CONTRACT: One year and thereafter until cancelled by six months written notice. A longer term may be required for an extensive installation.

RULES AND REGULATIONS of GU governing service hereunder as to application for service, character of service, connection, seasonal service, disconnection, reconnection, termination, etc., are on file in GU.

EFFECTIVE DATE: With all billings on and after October 1, 2008, and thereafter until revised.

 

 
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