Explained: Sunny Side Up – Evaluating The Cost-Effectiveness Of Solar PV In Coastal Regions

Representational image. Credit: Canva

Solar photovoltaic (PV) technology has gained significant prominence as a sustainable energy source globally. The deployment of solar PV systems in various regions has not only contributed to reduced greenhouse gas emissions but also established a cleaner and more sustainable energy infrastructure. Coastal regions, in particular, present an intriguing landscape for the installation of solar PV systems due to their unique climate and geographical characteristics. This research technical column delves into the evaluation of the cost-effectiveness of solar PV in coastal regions, examining the environmental and economic considerations associated with harnessing solar energy in these areas.


The increasing awareness of climate change and the need for clean energy sources have driven the adoption of solar PV technology in diverse geographical settings. Coastal regions, marked by their proximity to the sea, exhibit distinctive features that impact the performance and cost-effectiveness of solar PV systems. This write-up aims to explore the viability of solar PV installations in coastal areas, taking into account factors such as weather patterns, geographical specifics, and economic aspects.

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Challenges and Advantages in Coastal Solar PV



Saline Air and Corrosion: Coastal regions are characterized by saline air, which can contribute to accelerated corrosion of solar PV components. This necessitates the use of corrosion-resistant materials, adding to the initial installation cost.

Extreme Weather Events: Coastal areas may be susceptible to extreme weather events, such as cyclones or typhoons, which can damage solar PV infrastructure. Strengthening PV systems to withstand such events increases initial costs.


Abundant Sunlight: Coastal regions often receive ample sunlight due to their geographical location. This increased solar irradiance can boost energy generation and offset initial installation costs.

Cooling Effect: The proximity to water bodies can provide a cooling effect on PV panels, which can enhance their efficiency and extend their lifespan.

Economic Considerations

The economic feasibility of solar PV projects in coastal areas is a critical factor in their implementation. Several financial aspects come into play:

Initial Installation Costs: The need for robust, corrosion-resistant materials, and reinforcement against extreme weather can elevate the initial costs of solar PV projects in coastal regions.

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Government Incentives: Governments often offer incentives, such as tax credits and subsidies, to promote solar energy adoption. Understanding and leveraging these incentives can significantly offset installation costs.

Energy Generation and Savings: Solar PV systems can generate surplus electricity, which, if fed back into the grid, may result in net savings or additional income.

Lifespan and Maintenance Costs: Considering the extended lifespan of coastal PV systems and the relatively low maintenance requirements, the overall cost-effectiveness is enhanced over time.

Environmental Impact

The environmental benefits of solar PV are significant. By generating clean energy, these systems contribute to reduced greenhouse gas emissions and combat climate change. Coastal regions often house sensitive ecosystems, and the adoption of solar PV can lead to a reduced environmental footprint compared to traditional energy sources.


The evaluation of the cost-effectiveness of solar PV in coastal regions is a multifaceted endeavor. While challenges related to saline air, extreme weather, and initial installation costs exist, the advantages of abundant sunlight and cooling effects make coastal areas suitable for solar PV deployment. Moreover, the long-term economic benefits, government incentives, and reduced environmental impact underscore the sustainability and feasibility of harnessing solar energy in these regions. As technology advances and costs continue to decline, coastal solar PV projects are poised to play a pivotal role in achieving a cleaner and more sustainable energy future.

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