How London is built
- Before 1961 25%
- 1961–1990 41%
- 1991–2000 11%
- 2001 or later 24%
Getting your usage history in London
Most of London is served by London Hydro for electricity and Enbridge Gas for natural gas.
What the analysis shows
London gets about 3,809 heating degree-days a year and has a winter design temperature of −18.4°C, according to NRCan's HOT2000 climate data for London. Weather-normalizing your bills against those degree-days separates heating from baseload (lights, appliances, hot water), so you can see how much of the bill a heating upgrade can actually touch, and compare a mild year with a harsh one fairly.
NRCan-licensed service organizations serving London
Bring 12 months of bills to any of these organizations' evaluations; the advisor's model uses them as the baseline for projected savings.
Only assessments from the seven HRSP-approved organizations qualify for the $600 Home Renovation Savings rebate and its assessment-path upgrade rebates; each listing below says whether it's one of them.
- Acacia Engineering HRSP-approved: No
- All Season Inspection HRSP-approved: No Profile
- AmeriSpec HRSP-approved: Yes Profile
- Capital Home Energy HRSP-approved: No
- Clean Energy Solutions HRSP-approved: No
- Ecostep Energy Services HRSP-approved: No
- Enerhold Engineering Solutions HRSP-approved: No
- EnerQuality HRSP-approved: No
- ER Energy Solutions HRSP-approved: No
- Green Canada Home Advisors HRSP-approved: No Profile
- Greenbrain HRSP-approved: Yes Profile
- MAP Energy HRSP-approved: No
- Sensible Home Inspections HRSP-approved: No
- The Energuy HRSP-approved: Yes Profile
- Verdatech Energy Management and Consulting HRSP-approved: No
- EnviroCentre HRSP-approved: No
- EcoLogic Energy Advisors HRSP-approved: No
- Enerhome Consulting HRSP-approved: No
- F2 Energy HRSP-approved: No
- EnerSolution HRSP-approved: No Profile
- Energy Werx HRSP-approved: Yes Profile
- CoEfficient Building Science HRSP-approved: No
Programs in London
Energy bill analysis in London: common questions
How do I download my energy usage in London?
London Hydro: MyLondonHydro portal, then Green Button Download My Data (XML) of historical and current usage. Link Enbridge Gas: Gas utility (most of Ontario): My Account, then Share My Data, then Download your Data: up to 24 months of billing and usage data as Green Button XML. Link
What is Green Button?
A standard format for downloading your own energy data. Ontario electricity utilities have been required to offer Green Button Download My Data since November 1, 2023.
Why weather-normalize bills?
A cold winter raises heating bills even if nothing about the house changed. Normalizing to heating degree-days lets you compare years fairly and measure real savings.