Potential Engineering


What are Solar Diverters? – Cost and Benefits
In the push for sustainable energy solutions, solar power shines brightly. But what happens to excess solar energy? Enter solar diverters. These devices redirect surplus power to heat water, maximizing efficiency. In this article, we explore their functionality, cost-effectiveness, and environmental benefits, offering insights for homeowners and renewable energy enthusiasts alike.

Solar energy has become increasingly popular as a sustainable and renewable source of power for residential and commercial properties. Solar panels capture sunlight and convert it into electricity, which can be used to power appliances, lighting, and heating systems. 

However, one challenge with solar energy is managing the surplus power generated during sunny periods when consumption is low. This is where solar diverters come into play. 

In this article, we will explore the concept of solar diverters, explore their cost, and discuss the benefits they offer solar energy users.

What are Solar Diverters? 

Solar diverters are gadgets made to maximise the use of excess solar energy produced by photovoltaic (PV) panels. They are also referred to as solar immersion diverters or solar diverter hot water. 

These devices work by directing excess electricity that would otherwise be exported to the grid towards heating water in a hot water cylinder or storage tank. 

By doing so, solar diverters enable solar energy users to maximise the self-consumption of generated electricity and minimise reliance on grid power, ultimately leading to cost savings and reduced carbon emissions.

How Solar Power Diverters Work?

Solar diverters typically consist of a control unit, current sensor, and relay, all of which are installed alongside the existing solar PV system and hot water system. The current sensor monitors the amount of surplus electricity being generated by the solar panels, while the control unit determines when to divert this excess energy to the immersion heater. 

The relay acts as a switch, allowing the diverted electricity to heat the water in the hot water cylinder or tank. Solar diverters are usually compatible with both new and existing solar PV installations and can be integrated with various types of hot water systems, including standard immersion heaters and heat pumps.

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Cost of Solar Diverters

The cost of installing a solar diverter varies depending on factors such as the brand, model, and complexity of the system. On average, the upfront cost of a solar diverter, including equipment and installation, ranges from $500 to $1000. 

While this initial investment may seem significant, it is essential to consider the potential long-term savings and benefits associated with solar diversion. Additionally, many governments and utility companies offer incentives, rebates, or feed-in tariffs for renewable energy technologies, which can help offset the cost of installing a solar diverter.

What Are Solar Diverters

Factors That Influence The Cost of Solar Diverters

  • Type of Diverter: There are different types of solar diverters available in the market, ranging from basic models to more advanced ones with additional features such as monitoring capabilities or integration with smart home systems. The complexity and features of the diverter can affect its cost.

  • Brand and Manufacturer: Like any other product, the brand and manufacturer of the solar diverter can significantly impact its price. Established brands with a reputation for quality and reliability may command a higher price compared to lesser-known brands or generic products.

  • Installation Costs: The cost of installation plays a significant role in the overall expense of a solar diverter. This includes not only the labor cost but also any additional materials or equipment required for the installation process. The complexity of the installation, such as the layout of the electrical system in the home, can also influence the installation cost.

  • Capacity and Power Rating: Solar diverters come in different capacities and power ratings to accommodate varying household energy needs. Models with higher capacities or power ratings may cost more due to their ability to handle larger loads or generate more savings over time.

  • Warranty and Support: Consideration should also be given to the warranty offered by the manufacturer and the level of after-sales support provided. A longer warranty period and reliable customer support may justify a higher upfront cost, as they provide peace of mind and assurance of product reliability.

  • Additional Features: Some solar diverters may come with additional features such as compatibility with battery storage systems, integration with online monitoring platforms, or the ability to prioritise certain appliances over others. While these features can enhance the functionality of the diverter, they may also contribute to a higher cost.

  • Market Trends and Demand: Like any other product, the cost of solar diverters can be influenced by market trends and demand dynamics. Factors such as supply chain disruptions, changes in government incentives or regulations, and advancements in technology can all impact the pricing of solar diverters.

Tip - If you're seeking solar panel installation services in the UK, look no further than Potentia Engineering. We take pride in our work, guided by our core values to ensure utmost satisfaction for our clients. Our self-enforcing strategy guarantees the delivery of top-notch service with every project. At Potentia Engineering, we prioritize providing exceptional customer service, ensuring a seamless experience from start to finish. Contact us today for a no-obligation quote and discover how we can help you harness the power of solar energy for your home or business.

Contact us today for a no-obligation quote!


Why Solar Diverters Are Essential For Solar System?

Solar diverters play a crucial role in maximising the efficiency and benefits of your solar energy system. Here's why they are essential:

  • Maximising Self-Consumption: Solar diverters allow you to make the most of the solar energy generated by your PV panels by diverting surplus electricity to heat water instead of exporting it to the grid. This helps increase the self-consumption of generated electricity, reducing reliance on grid power and maximising the return on your investment in solar energy.

  • Cost Savings: Solar diverters help lower energy bills and reduce overall household expenses by using free solar energy to heat water. By minimising the need to purchase electricity from the grid for water heating, you can enjoy significant cost savings over time.

  • Environmental Benefits: Solar diverters contribute to reducing carbon emissions and environmental impact by utilising renewable solar energy for water heating instead of relying on fossil fuels. By harnessing the power of the sun, you can reduce your carbon footprint and contribute to a cleaner, greener planet.

  • Energy Independence: Solar diverters provide greater energy independence by allowing you to generate and use your renewable energy on-site. This reduces dependence on external energy sources and increases resilience against rising energy costs and grid disruptions.

  • Optimization of Solar PV System: Solar diverters help optimise the performance and efficiency of your solar PV system by ensuring that surplus energy is utilised effectively rather than being wasted or exported to the grid. This maximises the overall benefits and value of your solar investment.

As renewable energy technologies continue to evolve and become more accessible, solar diverters represent a practical and sustainable solution for harnessing the power of the sun to meet our energy needs.

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