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Flag of United KingdomSolar PV Analysis of Rainham, United Kingdom

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Rainham, United Kingdom (by season)

Rainham, England, United Kingdom presents a moderately suitable location for solar PV energy generation, though it faces the typical challenges associated with the Northern Temperate Zone climate. The location experiences significant seasonal variation in solar energy production, with summer months delivering more than five times the daily energy output compared to winter months.

Seasonal Energy Production Patterns

The solar energy generation at Rainham follows a predictable seasonal pattern. Summer delivers the highest output at 5.09kWh per day per kW of installed capacity, making it the prime season for solar energy production. Spring follows as the second-best performing season with 4.34kWh per day per kW, indicating that the period from March through August represents the most productive time for solar generation at this location. Autumn production drops significantly to 2.23kWh per day per kW, while winter months present the greatest challenge with only 0.99kWh per day per kW of output. This dramatic seasonal variation means that solar installations at Rainham will generate approximately 80% of their annual energy during the spring and summer months.

Optimal Panel Installation

For maximum year-round solar production at Rainham, England, fixed solar panels should be tilted at 44 degrees facing south. This angle represents the optimal compromise between capturing maximum solar energy during the productive summer months while maintaining reasonable performance during the less productive winter period.

Environmental and Weather Factors Affecting Solar Production

Several significant factors at Rainham can impede solar energy production and require careful consideration during installation planning. The UK's maritime climate brings frequent cloud cover and overcast conditions, particularly during autumn and winter months. This cloud cover substantially reduces solar irradiance and contributes to the dramatic seasonal variation in energy output. Rain is common throughout the year, though this can actually benefit solar installations by naturally cleaning panels. High humidity levels, especially during autumn and winter, can lead to condensation forming on panel surfaces, temporarily reducing efficiency until the moisture evaporates. The coastal influence in this region also means that salt-laden air can gradually build up deposits on solar panels, creating a film that reduces light transmission. Wind exposure can be both beneficial and problematic. While moderate winds help cool panels and improve efficiency, strong winds common to the area can carry debris, dust, and salt particles that accumulate on panel surfaces.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:
  • Install panels with adequate spacing and ventilation to promote air circulation, reducing condensation formation and helping panels operate at optimal temperatures
  • Use high-quality mounting systems designed to withstand strong winds while maintaining proper panel positioning
  • Implement regular cleaning schedules, particularly important in coastal areas to remove salt deposits and accumulated debris
  • Consider anti-soiling coatings on panels to reduce dirt adhesion and make natural rain cleaning more effective
  • Install monitoring systems to quickly identify performance issues caused by soiling or weather-related problems
The seasonal nature of solar production at Rainham makes it particularly important to size battery storage systems appropriately if energy independence is desired, as winter production will be insufficient to meet typical household energy demands without supplementary grid connection or substantial battery capacity.

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 911 locations across United Kingdom. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in United Kingdom by location

Solar output per kW of installed solar PV by season in Rainham

Seasonal solar PV output for Latitude: 51.5181, Longitude: 0.194 (Rainham, United Kingdom), 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 5.09kWh/day in Summer.
Autumn
Average 2.23kWh/day in Autumn.
Winter
Average 0.99kWh/day in Winter.
Spring
Average 4.34kWh/day in Spring.

 

Ideally tilt fixed solar panels 44° South in Rainham, United Kingdom

To maximize your solar PV system's energy output in Rainham, United Kingdom (Lat/Long 51.5181, 0.194) throughout the year, you should tilt your panels at an angle of 44° 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: 51.5181, Longitude: 0.194, the ideal angle to tilt panels is 44° South

Seasonally adjusted solar panel tilt angles for Rainham, United Kingdom

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 Rainham, United Kingdom. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 44° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
35° South in Summer 55° South in Autumn 65° South in Winter 43° 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 Rainham, United Kingdom as follows: In Summer, set the angle of your panels to 35° facing South. In Autumn, tilt panels to 55° facing South for maximum generation. During Winter, adjust your solar panels to a 65° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 43° angle facing South to capture the most solar energy in Rainham, United Kingdom.

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 Rainham, United Kingdom

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 Rainham, United Kingdom.

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 Rainham, United Kingdom

Topography of Rainham and Surrounding Areas

The topography around Rainham in the London Borough of Havering is characterized by relatively flat, low-lying terrain that forms part of the Thames Estuary floodplain. This area sits at an elevation of approximately 10 to 20 meters above sea level, creating a gently undulating landscape with minimal steep gradients or significant elevation changes. The region extends eastward toward the Thames Estuary and Purfleet, where the land becomes increasingly flat and marshy. To the north and west, the terrain gradually rises toward the higher ground of Essex and outer London, but these elevation changes are gradual rather than dramatic. The area is intersected by several waterways and drainage channels that have historically shaped the local landscape, creating a patchwork of fields, industrial areas, and residential developments. Much of the surrounding countryside consists of former agricultural land that has been partially developed for industrial and residential use. The remaining undeveloped areas feature open fields, scattered woodland, and areas of scrubland. The proximity to the Thames and its tributaries means that some areas are prone to seasonal flooding, particularly in the lower-lying sections closer to the river.

Optimal Areas for Large-Scale Solar PV Development

The flat, open terrain around Rainham presents several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the extensive flat agricultural fields and brownfield sites that stretch eastward toward the Thames Estuary and northward into the Essex countryside. These locations offer minimal shading from topographical features and provide the consistent, unobstructed exposure to sunlight that solar installations require. The former industrial sites and quarries in the vicinity of Rainham could be particularly well-suited for solar development, as they often feature large, cleared areas with existing infrastructure access. These brownfield locations would not require the conversion of productive agricultural land and may already have some electrical infrastructure in place. Areas to the east of Rainham, extending toward Purfleet and the wider Thames Gateway region, offer extensive flat terrain with good transport links via major roads and rail connections. The proximity to existing electrical transmission infrastructure in this industrial corridor would facilitate grid connection for large solar installations. The gently sloping fields to the north and northwest of Rainham could also accommodate solar arrays effectively, particularly those with southern-facing aspects. These areas benefit from being slightly elevated above the immediate floodplain while still maintaining relatively flat profiles suitable for ground-mounted solar panels. Areas closer to the Thames marshland, while topographically suitable, may face constraints related to flood risk and environmental designations that could limit development potential. The most practical locations for large-scale solar development would likely be the inland agricultural areas and former industrial sites that combine suitable topography with appropriate planning and environmental conditions.

United Kingdom solar PV Stats as a country

United Kingdom ranks 14th in the world for cumulative solar PV capacity, with 13,689 total MW's of solar PV installed. This means that 4.00% of United Kingdom's total energy as a country comes from solar PV (that's 20th in the world). Each year United Kingdom is generating 203 Watts from solar PV per capita (United Kingdom ranks 25th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in United Kingdom?

Yes, there are several incentives for businesses wanting to install solar energy in the United Kingdom. The UK government offers a Feed-in Tariff (FiT) scheme which pays businesses for every unit of electricity they generate from their solar panels. Additionally, businesses may be eligible for tax reliefs such as Enhanced Capital Allowances and Renewable Heat Incentives. Finally, some local authorities offer grants or other financial support to help businesses with the cost of installing solar energy systems.

Do you have more up to date information than this on incentives towards solar PV projects in United Kingdom? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Rainham, United Kingdom
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 8th of August 2025
Last Updated: Friday 8th of August 2025

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Compare this location to others worldwide for solar PV potential

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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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