ComEd - Commonwealth Edison Co

Net metering & export

Net Metering Allowed

Yes

NEM Type

Annual

TOU Utility

Yes

Post Solar Billing Method

Net Metering

Solar Export Type

N/A

Net Excess Generation Notes

• For customers purchasing energy from ComEd at fixed-prices, net metering credits are measured in kWh and used to reduce energy supply and other kWh-based charges. Net metering credits carried over from prior billing periods can be used to reduce future energy supply and other kWh-based charges until the end of the annual period specified on the Net Metering Election Form.
• For customers purchasing energy from ComEd at hourly prices, net metering credits are based on the price of power during the hours excess energy is produced and are reflected as a monetary credit on your energy bill. 

Rebates Offered

Yes

Deregulated

Yes

Allows Standby

No

Interconnection & taps

Approval Req To Install

Yes

Supply Side Taps Allowed

Yes

Line Taps Allowed

Yes

Load Taps Allowed

Yes

Tap Criteria

• Lineside Taps are approved inside meter cans for PV-Only projects (We cannot tap in the meter can on battery projects, unless it uses a Tesla Backup Switch)
• Meter can needs to be an 8" x 12" size in order to house the tap
• Taps also allowed on underground pedestal-style meters
• If the meter can is ringed, or if it is a stand-alone meter with no can, a meter upgrade will be required. If we replace the meter can then it needs to be ringless

Battery Projects

• Tesla Backup Switch is Allowed
• Design with backup switch only. If a gateway is required, provide an explanation in the design notes

Automatic Transformer Upgrade Size

0

Meter Aggregation Allowed

No

System size & offset

System Size Restrictions

0

System Size Restriction Type

No Restrictions

System Size Battery Included

No

System Size Includes Existing Systems

No

Offset Type

No Restrictions

Offset Value

0

Offset Calculation Period

0

Industry Standard Watts Sqft

2

Utility Specific Adjustments

• If the customer does not have 12 months of consecutive usage, the system will need to be sized using the Delivery Service Class chart..

Inverter Oversize Restrictions

Yes

Restriction Percent

150

System Offset Notes

Offset Calc Tool

PV Watts

Metering & disconnect

Production Meter Required

No

Production Meter Position

N/A

Production Meter Labeling

N/A

AC Disconnect Required

Yes

AC Disconnect Labeling

Utility Disconnect Switch

Meter Spot Required

No

Meter Adapter Requirements

Allowed Meter Adapter

ConnectDER,Tesla Backup Switch

Plans & docs

Site Plan Reqs

All Projects

• Plans must exactly match the account holder's name and service address on the utility bill - All pages of the plan set (including Unit #)
• ComEd will not kickback based on AC Disco labeling per staff.

Battery

• Battery model has to be specified for SEEB and PW3 - (ex. UBAT-10K1PS0B-03)

SLD Reqs

All Projects

• Inv > AC Disco > POI
• 10kW to 25kW systems registered with GATS must utilize a meter that meets ANSI C.12 standards. Certified, refurbished meters are allowed.
• See file: Electrical in Illinois for guidelines on creating plans.
• Rigid Conduit (IMC) is required
• ComEd will not kickback based on AC Disco labeling per staff.

Battery

• Tesla Backup Switch is Allowed - Please remove the verbiage "METER ADAPTOR" on the SLD next to the Backup Switch - DESIGN WITH BACKUP SWITCH ONLY, DO NOT USE THE GATEWAY UNLESS ABSOLUTELY NECESSARY, AND LEAVE NOTES AS TO WHY.
• For SEEB, Battery model has to be specified - UBAT-10K1PS0B-03

Electric Service Reqs

• Roof plates used as service attachments are no longer supported by ComEd.
• All service revisions will require an exterior emergency disconnect and whole-home surge protection.

Install Reqs

• .

Electrical Stamp Required

No

Meter Num Req SLD 3LD

No

ESID Num Req SLD 3LD

No

Site Plan Notes

Label Page Notes

Cover Page Notes

Electrical Diagram Notes

Rate Schedule Link

link

Website

link

Phone

(630) 576-8158

Other details

Revision Required

Yes

Mod Swap Requires Planset

Yes