Cumberland, Ontario, Canada, located at latitude 45.5146 and longitude -75.402, presents a mixed picture for year-round solar energy generation. This Northern Temperate Zone location experiences significant seasonal variations in solar output, which directly impacts the effectiveness of photovoltaic (PV) systems throughout the year.
Seasonal Solar Performance
The solar energy production in Cumberland varies dramatically across the seasons. Summer stands out as the most productive period, with an impressive 5.96 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.45 kWh/day. However, there's a sharp decline in autumn, with output dropping to 2.87 kWh/day. Winter sees the lowest production, managing only 1.82 kWh/day per kW installed.
Optimal Times for Solar Generation
Clearly, the warmer months from late spring through early fall offer the best conditions for solar energy production in Cumberland. During this period, longer days and higher sun angles contribute to increased solar irradiance. The peak generation typically occurs around the summer solstice in June, with high performance extending into July and August.
Panel Installation Considerations
For those installing fixed solar panels in Cumberland, Ontario, the ideal tilt angle to maximize year-round production is 39 degrees facing south. This angle optimizes the balance between summer and winter sun positions, capturing more energy across all seasons.
Environmental and Weather Factors
Cumberland's location presents some challenges for solar energy production. The region experiences significant snowfall in winter, which can cover panels and reduce output. Regular snow removal from panels is crucial to maintain efficiency during winter months. Additionally, the area's cloudy days, particularly in fall and winter, can impact solar generation.
To mitigate these issues, consider the following measures:
- Install panels at a steeper angle to promote snow sliding off
- Use snow-shedding coatings on panels
- Implement a regular panel cleaning schedule, especially after snowfall
- Consider a ground-mounted system for easier access and maintenance
While Cumberland's location isn't ideal for year-round solar production, with proper planning and maintenance, a solar PV system can still provide significant energy benefits, particularly during the more productive spring and summer months.
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 Cumberland
Seasonal solar PV output for Latitude: 45.5146, Longitude: -75.402 (Cumberland, 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 39° South in Cumberland, Canada
To maximize your solar PV system's energy output in Cumberland, Canada (Lat/Long 45.5146, -75.402) throughout the year, you should tilt your panels at an angle of 39° 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 Cumberland, 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 Cumberland, Canada. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 29° South in Summer | 49° South in Autumn | 59° South in Winter | 38° 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 Cumberland, 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 Cumberland, 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 Cumberland, Canada
Cumberland, Canada, located at approximately 45.5146°N latitude and 75.402°W longitude, is situated in a region characterized by diverse topographical features. The area surrounding Cumberland is part of the Ottawa Valley, which is known for its gently rolling hills, expansive forests, and numerous waterways. The landscape in this region is primarily shaped by the Ottawa River, which flows nearby to the north. The river valley creates a mix of flat floodplains and gradually sloping terrain as you move away from the water. To the south and east of Cumberland, the land becomes slightly more elevated, with gentle hills and small ridges dotting the landscape.
Forested Areas and Clearings
Much of the area around Cumberland is covered in mixed forests, consisting of both deciduous and coniferous trees. These wooded areas are interspersed with cleared agricultural lands and open fields, creating a patchwork of different habitats and land uses.Wetlands and Water Features
In addition to the Ottawa River, the region is home to numerous smaller streams, creeks, and wetlands. These water features contribute to the area's biodiversity and add to the variety of its topography. Some low-lying areas near these water bodies may be prone to seasonal flooding.Suitable Areas for Large-Scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near Cumberland, several factors come into play. The ideal areas would be relatively flat, open spaces with good sun exposure throughout the day. Based on the topography of the region, the following areas might be most suitable: 1. Agricultural lands: The cleared, flat farmlands in the area could potentially be repurposed or partially used for solar installations. These areas often have the advantage of being already connected to road networks and having minimal shading from trees or buildings. 2. Elevated clearings: Some of the gently sloping hillsides or ridge tops, particularly those facing south, could be good candidates for solar farms. These elevated areas may receive more consistent sunlight throughout the day and year. 3. Brownfield sites: Any former industrial or commercial sites in the region that are no longer in use could be ideal for solar PV installations, as they are often already cleared and may have existing infrastructure connections. It's important to note that while these areas may be topographically suitable, other factors such as local zoning laws, environmental considerations, and proximity to power grid infrastructure would also need to be taken into account when planning large-scale solar PV projects in the Cumberland area.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 22nd of December 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.
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