What ERTH Power actually does (and why your bill says "ERTH Power" at the top)

Ontario's electricity market is structured very differently from Alberta's. ERTH Power wears two hats at once: it is the distributor that owns the poles, overhead and underground lines, transformers, substations and meters across Kitchener, Waterloo, Wilmot, Woolwich and Wellesley, AND it is your default supplier under Ontario's Standard Supply Service (SSS) rules. The bill that arrives at your home in Kitchener, Uptown Waterloo, New Hamburg, Elmira or Linwood covers both jobs.

The per-kWh rate ERTH Power charges most residential and small-business customers is set by the Ontario Energy Board (OEB) twice a year in its Regulated Price Plan (RPP), with three structures to choose from: Time-of-Use, Tiered or Ultra-Low Overnight. Long-term fixed-rate retailer contracts exist but are a niche market, and signing one does not change the delivery, regulatory or Global Adjustment lines on your bill, only the commodity portion.

The wires + the default supply
ERTH Power (both roles)
  • Owns the wires, transformers, smart meters across 5 municipalities
  • Restores power after outages (24/7 dispatch)
  • Sends the monthly bill at the OEB's RPP rate
  • Fixed by address: every ERTH Power's southwestern Ontario footprint property is served by ERTH Power
Alternative: licensed retailer
Long-term fixed-rate contract
  • Replaces the commodity portion of the bill only
  • Door-to-door sales banned (ECPA 2010)
  • Delivery + Global Adjustment + regulatory unchanged
  • ERTH Power still owns the wires and meter
A multi-county quirk worth knowing

ERTH Power's footprint spans dense urban Kitchener and Uptown Waterloo plus several rural-township feeders (Wellesley, Woolwich, Wilmot). Outage durations on the rural feeders tend to be longer than in the urban core, simply because crews drive further and a downed-tree fault on a single rural line affects a much smaller number of metres. Two ERTH Power offices co-exist after the merger: 301 Victoria Street South (Kitchener HQ) and 526 Country Squire Road (Waterloo).

Where ERTH Power delivers power

In plain words: ERTH Power's territory is fifteen separate small communities scattered across five southwestern Ontario counties (Oxford, Elgin, Perth, Middlesex, Huron). Each town is a self-contained pocket inside a larger Hydro One Networks rural area, so the boundary is not contiguous — if you cross a county-road into the surrounding countryside, you usually leave the ERTH Power service area and enter Hydro One territory.

15 communities
Service area
Across 5 SW Ontario counties
25,000 +
Customer accounts
Residential + commercial
5 counties
Geographic spread
Oxford, Elgin, Perth, Middlesex, Huron
OEB
Regulator
Standard Supply Service
Covered by ERTH Power
  • •Oxford County: Ingersoll, Thamesford, Otterville, Norwich, Burgessville, Beachville, Embro, Tavistock
  • •Elgin County: Aylmer, Port Stanley, Belmont
  • •Perth County: Mitchell (West Perth), Dublin
  • •Huron County: Clinton, Goderich
NOT covered (use these instead)
  • •London → London Hydro
  • •Stratford, St. Marys, Hensall, Zurich, Brussels, Seaforth, Dashwood → Festival Hydro
  • •Chatham-Kent, Strathroy-Caradoc, Parkhill, Dutton, Newbury, St. Thomas → Entegrus Powerlines
  • •Rural Oxford, Elgin, Perth, Middlesex, Huron counties → Hydro One Networks
Communities inside ERTH Power's territory
Ingersoll Aylmer Port Stanley Mitchell Tavistock Goderich Clinton Embro

Not sure which one applies to your address? Check your most recent electricity bill: the distributor's name and OEB licence number are printed at the top of the first page.

How ERTH Power's charges appear on your bill

An Ontario electricity bill is broken into a handful of distinct line items, all of which appear on the same ERTH Power invoice. Unlike Alberta, where the commodity is billed separately by your retailer, in Ontario almost every household sees a single integrated bill where ERTH Power acts as both the wires company and the OEB-default supplier.

Electricity (commodity)

The per-kWh rate set by the OEB twice a year in the Regulated Price Plan. You pick one of three structures: Time-of-Use, Tiered or Ultra-Low Overnight.

Global Adjustment

Funds the difference between the market price and the long-term contracts the IESO signed for nuclear, hydro, wind, solar and conservation. RPP customers see this rolled into the commodity rate.

Delivery

The cost of moving electricity from the IESO-controlled grid through ERTH Power's wires to your meter. Includes a fixed monthly service charge plus a per-kWh distribution rate set by the OEB.

Regulatory charges

Small line covering OEB programs and the Wholesale Market Service Rate. Set by the OEB and applied uniformly across Ontario LDCs.

Ontario Electricity Rebate (OER)

A provincial credit that reduces the pre-tax subtotal by a percentage set by the government (currently around 13 %). Applied automatically to eligible residential, farm and small-business accounts.

HST

The 13 % federal-provincial sales tax applied to the post-rebate subtotal. Cannot be avoided; appears at the bottom of the bill.

ERTH Power's delivery rate is approved by the OEB through periodic rate applications. Rates are filed publicly on the OEB's eFiling portal and can be examined line by line by any customer or consumer advocate. The 2025 intent-to-acquire-Westario-Power announcement will be reviewed under the OEB's MAADs (mergers, acquisitions, amalgamations and divestitures) framework before it can close.

A practical implication: if a licensed retailer offers a low fixed per-kWh rate, you will still pay the same ERTH Power delivery and regulatory charges, the same Global Adjustment, the same HST. Switching retailers changes the commodity portion of your bill; switching never changes ERTH Power's portion.

Time-of-Use (TOU)

Peak (4-7pm), mid-peak, off-peak. Best for households that can shift heavy use to evenings and weekends.

Tiered

A low block for the first ~600 kWh per month (residential), a higher block above. Best for steady, modest users.

Ultra-Low Overnight (ULO)

Very cheap from 11pm to 7am, much more expensive 4-9pm. Best for EV owners or anyone who can charge overnight.

Contact details: two separate numbers

ERTH Power runs a dedicated outage hotline (226-896-2200) separately from its general customer care number (226-896-1010). Outages are the only thing you call the first number for; the second handles billing, account changes, moves, new connections and conservation programmes.

Ingersoll HQ

143 Bell Street
P.O. Box 157
Ingersoll, ON N5C 3K5

Toll-free outage line

1-877-850-3128 (24/7)

Online

Outage map + portal on erthpower.com

For non-urgent questions you can also use ERTH Power's online tools: the outage centre and the customer portal on https://www.erthpower.com. As Ontario's seventh-largest LDC, ERTH Power processes hundreds of thousands of customer interactions a year and its scorecard performance is reported annually to the OEB.

Report a power outage

If your power is out, the fastest path is to call 1-877-850-3128. Crews are dispatched 24/7. Active outages and restoration estimates are published on the outage centre, which covers all ERTH Power communities.

How it works: from your call to power back on
1
You report it

Call 1-877-850-3128 or check the outage centre online. Have your address and account number ready.

2
Dispatch confirms

The system pinpoints which feeder, transformer or substation is affected and assigns a crew or pole patrol.

3
Crew restores

In-town faults in Ingersoll, Aylmer or Mitchell often clear within an hour; rural-edge faults on long feeders to Goderich or Port Stanley can take longer because crews drive further.

4
Service back

Power is verified at the smart meter. Reset clocks, check freezer contents, and report any damage right away via ERTH Power's claims process.

Reliability in plain words

ERTH Power reports its reliability performance to the OEB every year in its public scorecard. The two headline metrics are SAIDI (average hours a customer was off in a year) and SAIFI (average number of interruptions per customer per year). Small multi-county LDCs like ERTH Power can show more year-over-year variability because a single windstorm hitting one feeder corridor affects a disproportionate share of customers. The full year-by-year scorecard is on the OEB's distributor-scorecard registry.

Planned outages for maintenance are normally posted at least 48 hours in advance on the outage centre. If you depend on medical equipment, register with ERTH Power's priority-notification programme so you are flagged before any planned interruption.

New connection or service upgrade

For a new build, a service upgrade (e.g. moving from 100 A to 200 A for an EV charger or heat pump), a temporary construction service, or any work that requires changes to the physical wires or meter, you deal with ERTH Power. Start at https://www.erthpower.com or call 519-485-1820. Routine residential connections target the OEB's 5-business-day standard once all conditions are met.

What you'll need before applying
1
Site address

The civic address and legal description of the lot inside one of ERTH Power's five municipalities.

2
Site plan

A sketch showing where you want the meter, service entrance and run-back to the pole or pad-mounted transformer.

3
Service size

The amperage (100 A, 200 A, 400 A…) and voltage you need, signed off by your Master Electrician.

4
ESA permit + certification

An Electrical Safety Authority permit and ESA sign-off once the in-house wiring is done. ERTH Power cannot energise until ESA clears it.

Lead time
5 business days (standard)

For routine residential connections once all conditions are met. Complex builds or service upgrades that require civil work can run several months.

Fees
OEB-approved tariff

Fixed component + per-metre charge above the contribution threshold defined in ERTH Power's Conditions of Service.

Once the wires are in, your account opens automatically under Standard Supply Service at the OEB's Regulated Price Plan rate. You can switch your RPP structure (TOU, Tiered or ULO) at any time by contacting ERTH Power. If you sign with a licensed retailer later, the retailer registers their contract with ERTH Power and the commodity rate is replaced on your next bill cycle.

Moving home, transferring or closing a service

In ERTH Power's 15 communities, the move-in / move-out conversation starts with ERTH Power directly, not with a separate retailer. Because ERTH Power is the default supplier, it closes the old billing account, sets up the new one, and triggers the final meter read. Most move requests need at least 1 to 2 business days of notice; 5 is safer for end-of-month moves.

The move-out steps in order
1
Call ERTH Power

Call 519-485-1820 (or use My Account online). Give them the move date and your new address.

2
Confirm dates

1 to 2 business days minimum; allow 5 for month-end moves and university September turnover.

3
Final meter read

On the move-out date, ERTH Power records the final reading remotely from the smart meter; no in-person visit required.

4
Final bill arrives

ERTH Power issues a closing bill for the period up to the move-out date. The new address bill starts under a fresh account.

Staying inside ERTH Power

Administrative transfer only. No physical work, no service interruption. Your RPP structure (TOU, Tiered, ULO) carries over by default; ask ERTH Power if you want to change it at the new address.

Moving outside ERTH Power's southwestern Ontario footprint

Opening a fresh account is required at the new LDC. Common destinations from ERTH Power's territory include London Hydro, Entegrus Powerlines (St. Thomas, Strathroy), Festival Hydro (Stratford) and Hydro One Networks (rural).

Meters, meter reading and accuracy

ERTH Power owns the meter at your address. Since the province-wide smart-meter rollout was completed in 2010-2011, virtually every the ERTH Power territory residential and small-business address is equipped with a smart meter that supports the OEB's Time-of-Use pricing structure. The meter is the basis for both the consumption side of your bill and the choice between TOU, Tiered or Ultra-Low Overnight RPP structures.

Smart meter (AMI)
Automatic, hourly readings

Every ERTH Power's southwestern Ontario footprint residential address. Consumption reports back to ERTH Power automatically; no action from you, no estimated bills.

Suspect a fault?
Request an accuracy test

ERTH Power pulls the meter and tests it on a calibrated bench against Measurement Canada's tolerance.

Green Button
Your own hourly data

Download your hour-by-hour consumption via My Account or pipe it directly into an authorised third-party energy app.

How the accuracy test settles up

If the meter reads outside Measurement Canada's tolerance (typically ±2 %), the test is free and you get a billing adjustment back to the date the fault is presumed to have started. If the meter passes, the test fee is charged to you at the OEB-approved tariff rate.

Contact finder

What do you need to do with ERTH Power?

Pick an action. The tool shows the right phone, the right link, and what to expect. Nothing is sent anywhere.

Note: under AUC Rule 002, Alberta distributors are not required to pay automatic compensation for outages. Damage claims are evaluated case-by-case on negligence.

Compensation and damage claims: the honest version

Ontario has no automatic, statutory compensation scheme for individual customers affected by a power outage. Unlike the UK's Ofgem Guaranteed Standards, the OEB's role is to require ERTH Power to report its reliability performance (SAIDI, SAIFI) every year in its public scorecard. Penalties for under-performance flow from the regulator to the distributor; they do not arrive in your mailbox as a credit.

If your fridge or freezer contents spoiled, an appliance was damaged by a voltage surge, or you incurred a clear loss during an outage, you can file a damage claim with ERTH Power. The claim is evaluated on negligence.

Typically accepted
Distributor at fault
  • +Equipment failure (transformer, network switch)
  • +Crew error during work on the network
  • +Switching incident causing voltage spike
  • +Unplanned, distributor-caused service interruption
Routinely denied
Outside distributor control
  • ×Severe weather (lightning, wind, ice storms)
  • ×Wildlife contact (squirrels, raccoons on lines)
  • ×Third-party contact (vehicle hits pole, dig-in)
  • ×Planned outages notified in advance
Faster path for most losses

Most the ERTH Power territory home insurance policies cover food spoilage and surge damage at a low excess. If your loss is meaningful, the insurance route is usually faster than a denied utility claim. Keep dated receipts and photos either way.

Regulator and complaint escalation

If you cannot resolve something directly with ERTH Power, there is a clear escalation ladder in Ontario. The Ontario Energy Board sits at the top as both the economic regulator and the body that handles consumer complaints; the Electrical Safety Authority covers physical-safety issues.

The escalation ladder
1
Talk to ERTH Power customer care

Most issues resolve here. Phone 519-485-1820 (Monday to Friday, 8:30 a.m. to 4:00 p.m.) or use the My Account portal.

2
Ask for a formal written response

If the front line cannot fix it, request a written decision. This creates the paper trail needed for the next step.

3
File a complaint with the OEB Consumer Protection Office

The OEB investigates complaints involving Ontario LDCs, retailers and unit sub-meter providers. The service is free.

4
OEB formal hearing or court action

Last resort. For tariff or service-quality issues you can intervene as a registered intervenor in a rate proceeding. For damage claims that are denied, civil court is the final route.

Selectra energy expert answers

Is ERTH Power the same company that bills me for my electricity?

Yes, for almost every household in its 15-community territory. ERTH Power is both the wires company (it owns the poles, transformers and meters) and the default supplier under Ontario's Standard Supply Service. The default per-kWh rate is the OEB's Regulated Price Plan.

Why is the company written 'ERTH' in capitals?

ERTH stands for the predecessor name Erie Thames (Hydro), and it is the holding company that owns ERTH Power. ERTH Corporation also runs unregulated businesses (metering field services to Festival Hydro, technology services). The 'ERTH' branding has been kept in capitals since the 2000 incorporation.

I have a power outage. Who do I call?

ERTH Power directly. Call 1-877-850-3128 (24-hour toll-free). Track restoration on the live outage map. The map updates during business hours and during major outage events. For a downed live wire, call 911 first.

What is the Regulated Price Plan (RPP)?

The RPP is the OEB-set default electricity rate, updated every six months with three structures: Time-of-Use, Tiered, or Ultra-Low Overnight. Signing a licensed retailer contract replaces the commodity portion only; ERTH Power's delivery, regulatory and Global Adjustment lines remain unchanged.

Can I choose a different electricity distributor in Aylmer or Mitchell?

No. Your distributor is fixed by address. Aylmer, Port Stanley, Belmont, Ingersoll, Thamesford, Otterville, Norwich, Burgessville, Beachville, Embro, Tavistock, Clinton, Mitchell, Dublin and Goderich are all ERTH Power. Surrounding rural addresses fall to Hydro One Networks; Stratford is Festival Hydro; London is London Hydro.

ERTH announced an intent to acquire Westario Power in 2025. What does that mean for me?

In December 2025 ERTH Corporation publicly announced its intent to acquire shares of Westario Power, which would expand ERTH Power's service territory to about 30 communities across seven counties. The acquisition was filed under the OEB's MAADs (mergers, acquisitions, amalgamations and divestitures) process. Until OEB approval and closing, nothing changes at your address.

Who do I call for a new connection or service upgrade?

ERTH Power. Call 519-485-1820 (the Ingersoll office) or apply via https://www.erthpower.com. An ESA permit and certification are required for the in-house wiring before ERTH Power will energise the new service.