Peterborough, Ontario, Canada, located in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar output, which can impact the overall efficiency of solar PV systems.
Seasonal Solar Performance
Solar energy production in Peterborough peaks during the summer months, with an impressive output of 5.89 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.18 kWh/day. However, autumn sees a considerable drop to 2.99 kWh/day, while winter experiences the lowest production at just 1.77 kWh/day.
These figures highlight that the most ideal times for solar energy generation in Peterborough are during the spring and summer seasons. During these months, longer daylight hours and higher sun angles contribute to increased solar panel efficiency.
Optimizing Solar Panel Installation
To maximize year-round solar energy production in Peterborough, Ontario, fixed solar panels should be installed at a tilt angle of 38 degrees facing south. This optimal angle helps balance energy capture across all seasons, ensuring the best possible annual output.
Environmental and Weather Considerations
Several factors can impact solar energy production in Peterborough:
- Snow accumulation: Winter snowfall can cover panels, reducing efficiency. Regular snow removal or installing panels at a steeper angle can help mitigate this issue.
- Cloud cover: Peterborough experiences significant cloud cover, particularly in autumn and winter. Using high-efficiency panels and microinverters can help maximize energy production even in low-light conditions.
To address these challenges, consider implementing snow-shedding systems, regular maintenance schedules, and investing in weather-resistant, high-quality solar equipment. Additionally, a hybrid system combining solar with other renewable energy sources could help maintain consistent energy production throughout the year.
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 569 locations across Canada. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Canada by location
Solar output per kW of installed solar PV by season in Peterborough
Seasonal solar PV output for Latitude: 44.3136, Longitude: -78.24 (Peterborough, Canada), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 38° South in Peterborough, Canada
To maximize your solar PV system's energy output in Peterborough, Canada (Lat/Long 44.3136, -78.24) throughout the year, you should tilt your panels at an angle of 38° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Peterborough, Canada
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Peterborough, Canada. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 28° South in Summer | 48° South in Autumn | 58° South in Winter | 37° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Peterborough, Canada
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Peterborough, Canada.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Peterborough, Canada
The area surrounding Peterborough, Canada, located at approximately 44.3136°N latitude and 78.24°W longitude, is characterized by a diverse and gently rolling topography. This region is part of the southern edge of the Canadian Shield, a vast area of ancient bedrock that forms much of central and eastern Canada. The landscape around Peterborough features a mix of low hills, shallow valleys, and numerous lakes and rivers. To the north and east of Peterborough, the terrain becomes slightly more rugged, with more pronounced hills and rocky outcrops typical of the Canadian Shield. This area is dotted with small lakes and forests, creating a picturesque setting. To the south and west, the land gradually transitions into the flatter agricultural plains of southern Ontario. The Otonabee River, which flows through Peterborough, has played a significant role in shaping the local topography. The river valley provides a natural corridor through the area, with gentle slopes rising on either side. Several smaller streams and creeks also crisscross the region, further contributing to its undulating character.
Areas Suitable for Large-Scale Solar PV
When considering areas near Peterborough that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would have relatively flat or gently sloping terrain, good sun exposure, and minimal shading from trees or other obstacles. The agricultural lands to the south and southwest of Peterborough present some of the best opportunities for large-scale solar PV projects. These areas typically feature open fields with fewer trees and natural obstructions, allowing for maximum sun exposure throughout the day. The gently rolling nature of this terrain also provides flexibility in panel placement and orientation. Some of the cleared areas to the east and northeast of Peterborough, where the Canadian Shield transitions into more open land, could also be suitable for solar installations. While these areas may have slightly more varied topography, they often feature large open spaces that could accommodate solar arrays. It's important to note that while the immediate vicinity of Peterborough offers potential sites for solar PV, developers would need to carefully assess each specific location. Factors such as local zoning regulations, proximity to electrical infrastructure, and environmental considerations would all play crucial roles in determining the feasibility of large-scale solar projects in the region.Canada solar PV Stats as a country
Canada ranks 23rd in the world for cumulative solar PV capacity, with 3,630 total MW's of solar PV installed. This means that 0.70% of Canada's total energy as a country comes from solar PV (that's 38th in the world). Each year Canada is generating 96 Watts from solar PV per capita (Canada ranks 40th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Canada?
There are several incentives for businesses to install solar power systems in Canada. These incentives vary by province and can include:
1. Federal Tax Incentives:- Accelerated Capital Cost Allowance (CCA): Businesses can write off the full cost of clean energy equipment in the year it's put into use.
- Ontario: Save on Energy program offers incentives for businesses to reduce energy consumption.
- Alberta: Energy Efficiency Alberta offers rebates for solar PV installations.
- British Columbia: BC Hydro offers a net metering program. BC Hydro also offers rebates for solar panels and battery storage.
- Nova Scotia: Solar Electricity for Community Buildings Program.
Many provinces ofer net metering, allowing businesses to sell excess electricity back to the grid.
4. Grants and Loans:Some provinces offer grants or low-interest loans for renewable energy projects.
5. Carbon Pricing:The federal carbon pricing system can make solar more competitive compared to fossil fuels.
6. Municipal Incentives:Some cities offer additional incentives or property tax reductions for solar installations.
7. Reduced Operating Costs:While not a direct incentive, businesses can significantly reduce their long-term energy costs.
Note: Incentives and programs can change over time, so businesses should check with local authorities and energy providers for the most up-to-date information.
Do you have more up to date information than this on incentives towards solar PV projects in Canada? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 10th of November 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




