Net Metering

Ontario Hydro One Net Metering

Hydro One Net Metering is another method of connecting renewables to the grid and has been the only way for several years. Individuals who install smaller micro-generation PV systems who do not wish to participate in the Standard Offer Program can choose to use the electricity generated for their own consumption.Ontario's net metering regulation allows you to send electricity generated from renewable sources to the electrical grid for a credit toward your energy costs. Your utility will subtract the value of electricity you supply to the grid from the value of what you take from the grid. What you'll see on your bill is the "net" difference between those two amounts. If you supply power that is worth more than what you take from the grid over the billing period, you'll receive a credit that can help lower future energy bills. Net Metering measures the energy you use against the energy you generate (with Renewable Energy equipment) resulting in a 'net' energy total from which your bill is calculated. Local Distribution Companies may offer connection under the SOP and/or Net Metering. Here are the highlights of Hydro One's net metering rules, as one example...

Net Metering Rules
  • Net Metering excesses cannot be carried forward beyond 1 year; Hydro One does not pay for excess generation.
  • Your installation must be inspected by the Electrical Safety Authority and requires special plan approval. This approval can take as little as a few days, or as much as a few weeks.
  • You are required to install an isolation switch (visible, accessible, and lockable) located between the meter and your equipment. It's small and inexpensive.
  • If your system is rated at less than 10kW you must install a 'dual register meter' which measures consumption independently from generation. Hydro One will pay for this.
  • If your system is rated greater than 10kW but less than 50kW you must install, at your expense, an interval meter and supply a phone line to it.
  • You must be a customer of a distributor and you generate primarily for your own use.
  • The electricity is generated solely from a renewable source such as wind, solar power, or agricultural biomass.
  • The maximum capacity of the generation facility is 500 kW or less.
  • You must enter into a Connection Agreement with Hydro One stipulating a bunch of legal details.

Information Line

Call 1-866-280-7712 for more information, visit the Hydro One Net Metering Website, or Click Here for the Net Metering Brochure.