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Flag of CanadaSolar PV Analysis of Kemptville, Canada

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Kemptville, Canada (by season)

Kemptville, Ontario, Canada presents a moderately favorable but seasonally variable location for solar PV energy generation, with significant challenges during winter months that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this Northern Temperate Zone location shows dramatic seasonal variation. Summer provides the strongest performance at 5.93 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring follows closely with 5.38 kWh per day per kW, offering nearly comparable output. However, the location faces substantial challenges during colder months. Autumn production drops to 2.82 kWh per day per kW, while winter performance plummets to just 1.80 kWh per day per kW - representing only about 30% of summer output levels.

Optimal Installation Configuration

For maximum year-round energy production at Kemptville, Ontario, solar panels should be installed at a fixed tilt angle of 39 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying position throughout the year and weighting for actual solar irradiance potential.

Local Environmental and Weather Challenges

Several significant factors at this Canadian location can impede solar production and require preventative measures:
  • Snow accumulation - Heavy winter snowfall can completely block panels for extended periods
  • Ice formation - Freezing conditions create ice buildup that reduces light transmission
  • Temperature cycling - Repeated freeze-thaw cycles can stress mounting systems and electrical connections
  • Reduced daylight duration - Northern latitude winter conditions significantly limit generation potential

Recommended Preventative Measures

To maximize solar energy production despite these challenges, several installation strategies prove effective:
  • Steeper panel angles - Installing panels at angles steeper than the calculated 39-degree optimum can help shed snow more effectively, though this may slightly reduce peak summer output
  • Quality mounting systems - Use robust mounting hardware rated for heavy snow loads and thermal cycling
  • Strategic positioning - Install panels where they receive maximum winter sun exposure and avoid areas prone to snow drifting
  • Electrical system protection - Use weatherproof connections and components rated for extreme temperature variations
  • Maintenance planning - Design systems for safe snow removal access when necessary
While Kemptville offers good solar potential during warmer months, the winter performance limitations mean this location requires careful system sizing and realistic expectations for year-round energy independence through solar power alone.

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 Kemptville

Seasonal solar PV output for Latitude: 45.0173, Longitude: -75.6446 (Kemptville, 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:

Summer
Average 5.93kWh/day in Summer.
Autumn
Average 2.82kWh/day in Autumn.
Winter
Average 1.80kWh/day in Winter.
Spring
Average 5.38kWh/day in Spring.

 

Ideally tilt fixed solar panels 39° South in Kemptville, Canada

To maximize your solar PV system's energy output in Kemptville, Canada (Lat/Long 45.0173, -75.6446) 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.

The sun
At Latitude: 45.0173, Longitude: -75.6446, the ideal angle to tilt panels is 39° South

Seasonally adjusted solar panel tilt angles for Kemptville, 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 Kemptville, 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Kemptville, Canada as follows: In Summer, set the angle of your panels to 29° facing South. In Autumn, tilt panels to 49° facing South for maximum generation. During Winter, adjust your solar panels to a 59° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 38° angle facing South to capture the most solar energy in Kemptville, Canada.

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 Kemptville, 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 Kemptville, Canada.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Kemptville, Canada

Topography Around Kemptville

Kemptville sits in the fertile agricultural heartland of eastern Ontario, positioned within the broader Ottawa Valley region. The landscape surrounding this community is characterized by gently rolling terrain that rarely presents dramatic elevation changes. The area forms part of the St. Lawrence Lowlands, a geological region known for its relatively flat topography and rich soils that have made it ideal for farming for generations.

The terrain around Kemptville consists primarily of low hills and shallow valleys, with elevation changes typically ranging from modest rises to gentle depressions. The Rideau River system influences much of the local topography, creating a network of waterways that have carved subtle valleys through the landscape over thousands of years. These river valleys are generally broad and shallow rather than steep or deeply incised, contributing to the overall gentle character of the region.

Agricultural fields dominate the visual landscape, with a patchwork of crop lands, pastures, and woodlots creating the typical rural Ontario countryside appearance. The soils are predominantly clay and clay loam, formed from marine sediments deposited when this region was covered by the Champlain Sea following the last ice age. This geological history has resulted in generally level to gently undulating farmland with good drainage characteristics.

Optimal Areas for Large-Scale Solar Development

The relatively flat agricultural lands extending south and east of Kemptville present the most promising opportunities for large-scale solar photovoltaic installations. These areas benefit from minimal topographical obstacles and contain extensive open fields that could accommodate substantial solar arrays without requiring significant grading or site preparation work.

The broad, gently sloping fields found throughout the surrounding agricultural zone offer natural advantages for solar development. South-facing slopes, even gentle ones, can provide optimal panel orientation while the open nature of the farmland ensures minimal shading from trees or other obstructions. The clay-based soils, while excellent for agriculture, also provide stable foundations for solar mounting systems.

Areas to the west of Kemptville, toward the broader Ottawa Valley, also present suitable conditions with their expansive flat to gently rolling terrain. The proximity to existing electrical infrastructure along major transportation corridors adds practical advantages for grid connection. The landscape in these directions tends to be more open with larger field systems that could accommodate the substantial footprint required for utility-scale solar facilities.

The eastern approaches toward the Quebec border maintain similar topographical characteristics, with vast agricultural plains that experience minimal shading and offer the consistent, predictable terrain that large-scale solar installations require. These areas benefit from being part of the same geological formation, ensuring stable ground conditions and relatively uniform site characteristics across large areas.

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.
2. Provincial Programs:
  • 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.
3. Net Metering:

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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Kemptville, Canada
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 21st of July 2025
Last Updated: Thursday 7th of August 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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