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Solar Energy and Micro-Generation

Considering a switch to solar energy? Residential and commercial solar energy systems can help reduce Lethbridge's reliance on fossil fuels and contribute to a more sustainable future.

How to apply

Understanding Energy Costs

Residential and commercial power bills are based on the following four factors.

For more information about what to consider before switching to solar energy, download our detailed guide to Solar Panels and Electricity Costs.

How much energy you use is the most important figure on your bill and almost all other line items are based on this value. The amount of energy used in your residential or commercial property depends on many things including what the outside temperature is, what type of appliances you use, how efficient your appliances are, how often you use them, and so on.

Each person and residence uses power differently, but your electrical meter is set up to measure how much total power your home has used over the month. This energy value is measured in kilowatt hours (kWh) and is essentially the amount of energy consumed when something uses 1,000 watts of energy for one hour.

How fast you use energy is called demand, and is measured in kilovolt-amperes (kVA) as a unit of power.

To better understand the difference between energy and demand, think of it like this:

Your neighbour has installed a new pool in their backyard and they need to fill it with water. There are many ways to fill the pool with water, but they're trying to decide between using a garden hose or calling the fire department and using a fire hydrant. One method (garden hose) is slow and inexpensive, while the other (fire hydrant) is fast and costly. The end result is the same—the pool is full of water—but how fast the water got there is quite different.

Electricity is the same: the energy is equivalent to the amount of water and is just a sum at the end of the month, but the demand is how fast you bring the energy in. One person can use a small amount of power continuously for an entire month and use the same amount of energy that another would use by turning on a large appliance for a short period of time. This is the same as using a garden hose instead of a fire hydrant. This value is important for the City of Lethbridge because the system has to be designed to accommodate your demand.

Energy cost is the dollar amount per kWh agreed upon with your retailer when you signed up or entered a contract with them. This price can be a fixed amount, meaning it will not change over the life of the agreement, or it can be variable, meaning it will change monthly with the market rates. This is all based on consumer choice and offers from the retailer.

In the electricity market in Alberta, the energy is bought and sold in a regulated market similar to other goods. That energy needs to make it from where it is produced to where it is consumed. The cost to do that is called the delivery charge. Many groups or entities are involved in delivering energy and as a result the delivery charge is made up of many components.

Transmission charges → A transmission charge is the cost to get the power from where it is generated across the province to the city. This is made up of a fixed charge and an energy charge and it’s typically represented as just a single transmission charge on your bill. This amount is set by the Alberta Utilities Commission along with the companies that provide the transmission facilities and can change throughout the year.

Distribution charges → A distribution charge is the cost for the City of Lethbridge Electrical Utility to bring the power from the substation through the city streets and to your home. This cost is also comprised of a fixed rate, an energy charge and demand charge. This rate is set by City Council along with Electric Design. The local access fee (LAF) is a fee charged by the City of Lethbridge. This fee is charged to use city lands to install electrical facilities to deliver power and is a percentage rate of the distribution charge.

Rate riders → The last portion of your bill, aside from the GST, is rate riders. These are costs to make up differences in forecasts from previous billing and is meant to clear up over or under billing on your account. These are charges set by the Alberta Utilities Commission and the City.

Micro-Generation

Learn about micro-generation and how to become a micro-generator.

Micro-generation is the production of power through a small-scale renewable source. This includes solar panels, wind turbines, and others. It lets applicants produce a portion or all of their residential or commercial yearly electrical energy consumption.

Micro-generation systems connect to the City of Lethbridge's distribution grid. 

Micro-generation systems need to meet the following requirements:

  • Be less than 5 MW in size
  • Only produce the same amount of yearly energy consumption on site or less, not more
  • Produce power from a renewable energy source such as solar or wind
  • Meet all provincial requirements for electrical safety equipment

Check out our list of Frequently Asked Questions for more information on rules, regulations, system sizing, and more.

How to apply for micro-generation

There are two ways to apply for micro-generation in Lethbridge.

Option 1: Homeowners, solar retailers, and non-electrical contractors

Homeowners, solar retailers, and non-electrical contractors can apply for an Interconnection Agreement via the Solar Micro-Generation Application. This is an agreement between the property owner and City of Lethbridge Electric Design regarding the maximum allowable energy generation of a future residential or commercial micro-generation system. 

Please include the following with your application:

  • Evidence of Canadian approvals of the solar modules (CSA, ULC, Intertek, etc.)
  • Confirmation of racking and solar panel compatibility
  • Single-line diagram
  • Component specification sheets from the manufacturer

This agreement only states the approved micro-generation capacity of the system. It does not act as a permit and does not authorize the installation, activation, or alteration of a solar array. A Solar Electrical Permit is required to perform any type of work on a new or existing solar array, which must be obtained by a certified electrical contractor with a valid City of Lethbridge business licence. 

Electric Design will provide an Interconnection Agreement to the applicant to be signed by the property owner. Once the signed Interconnection Agreement is returned to Electric Design, an electrical contractor may then be hired to obtain an Electrical Permit and perform the work.

Option 2: Electrical contractors or solar retailers who employ an electrical contractor

Certified electrical contractors with a valid City of Lethbridge business licence can apply on behalf of a homeowner or solar retailer via the Electrical Permit & Solar Micro-Generation Application. The Residential and Commercial workflows include both the Interconnection Agreement and Electrical Permit.

Please include the following with your application: 

  • Evidence of Canadian approvals of the solar modules (CSA, ULC, Intertek, etc.)
  • Confirmation of racking and solar panel compatibility
  • Single-line diagram
  • Component specification sheets from the manufacturer

Electric Design will provide an Interconnection Agreement to the applicant to be signed by the property owner. Once the signed Interconnection Agreement is returned to Electric Design, City of Lethbridge Building Inspections will commence review of the provided design documents, issue the Electrical Permit, and authorize installation of the solar array.

Installing Solar Panels

Find out which permits you need before starting construction. Permits ensure your work is safe, within City guidelines, and up to code.

For more information about the construction and installation of solar panels, visit Building and Renovating.

Solar installations that occupy land space on a parcel must get development approval.

Rooftop and wall-mounted solar panel installations do not need development approval.

Fill out a Development Permit Application, then submit it to planninganddesign@lethbridge.ca. If development approval is required for your project, you must get a Development Permit before applying for any other permits. If you are unsure, contact Planning & Design for more information.

An Electrical Permit is required for all solar installations and can only be obtained by a certified electrical contractor with a valid City of Lethbridge business licence.

Micro-generation approval from Electric Design and a signed Interconnection Agreement must be obtained before Building Inspections can issue an Electrical Permit.

A Building Permit is required for all rooftop and wall-mounted solar panel installations.

Homeowners or contractors can apply for a Building Permit once Electric Design has approved the micro-generation system. Use eApply to submit your application.

Be sure to include the following documents with your Building Permit application:

  • Drawings that show where the solar modules will be located on the structure
  • Drawings that show how the solar modules will be supported and anchored to the structure 

Frequently Asked Questions

Still have questions about solar panels in Lethbridge? Check out our list of FAQs below.

The Alberta Utilities Commission (AUC) has established the micro-generation regulations to allow a quick process for the approval to install solar on homes and businesses in order for the homes or businesses to become net zero in terms of energy.

This means that a micro-generation unit will not produce more energy over the year than the location consumes. Each month will be different in terms of how much energy is produced versus generated with the solar panels, but over the year added up they should be the same.

For solar installations to fall within the micro-generation guidelines it needs to be determined how much energy the home uses over a 12-month period. The City of Lethbridge Electric Utility is tasked with approving these installations and determining when a home or business falls within the guidelines.

The solar installer can take the previous 24 months of consumption data reported by the meter at the application site and use a sliding 12-month window over those months to determine the maximum energy used in one year. This means that the time period has to be 12 consecutive months within that last 24 months.

Here's an example of how we determine a home's maximum energy in a 12-month period.

Residents of Lethbridge can install as much solar generation as they can handle on their roof, so the only question is what process does it fall under.

The Alberta Utilities Commission (AUC) has created a number of processes to connect generation to the power grid, and the simplest and quickest process is called the micro-generation process and is meant for applicants who only intend to generate the energy that they use over a year period.

If you want to produce more energy than you use over a year period, you would fall under a different process that is longer and much more involved. Studies need to be performed on the electric system to determine power flow and safety implications which takes time and resources to accomplish. Since this process is much longer and more expensive than the micro-generation process, the typical home owner chooses to apply under the micro-generation process.

It’s important to know that the City of Lethbridge Electric Utility does not create the processes as this falls under the province and the AUC. Electric Utility simply works to ensure that the installations fall under the correct process.

The City of Lethbridge Electric Utility publishes the maximum allowable energy generation (in kWh) for each property on the City's OpenData Catalogue.

This data set is the maximum allowable micro-generation capacity for each electric meter or site ID. This data is intended for sites with at least 12 months of historical consumption data.

New sites or sites with less than 12 months of historical consumption data must contact Electric Utility when inquiring about solar micro-generation and installation.

Locate and click on your property on the City's OpenData Catalogue. Your Site ID will appear in a pop-up box.

The Clean Energy Improvement Program (CEIP) is an innovative financing tool empowering residential property owners in Lethbridge to invest in energy efficiency and renewable energy upgrades. This program makes sustainable living accessible to residents by providing flexible financing options.

Click here to learn more about the CEIP.


Can't find what you're looking for?

Send an email to Electric Design at electricgeneration@lethbridge.ca.

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City Hall
910 4 Avenue South
Lethbridge, AB T1J 0P6

Phone: 311
or 403-320-3111 (if outside of Lethbridge)

 

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