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Solar Energy

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Why PRW Electrical Services?

Why PRW Electrical Services?


PRW Electrical Services have a wealth of experience within solar photovoltaic industry. Whether a single home installation or large volume social housing frame works - we have successfully delivered contracts of all sizes. We can offer real solution from design to product recommendations.


Why Us?

We assign a dedicated project manager who will ensure your installation is completed in a safe, efficient and timely manner. We use employed engineers to deliver, install and commission your solar panel system. On the day of the installation we arrive and erect our own scaffolding, complete all roof work, commission and collapse the scaffold system ensuring a smooth installation. In most instances this will take a single day.  


How much do solar panels cost?

Choose The System To Match Your Budget

SOLAR PANEL INSTALLATION

Fully fitted from £7750


  • 12x Ja Solar 410 Watt Panels
  • Premium 4.5 Inverter
  • Bird Grid Protection - Prevent bird nesting
  • Full roof mounting installation system
  • Full roof mounting installation system



 No Hidden Charges!

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SOLAR & BATTERY STORAGE

Fully fitted from £10500


  • 12x Ja Solar 410 Watt Panels - 25 year warranty
  • Solax Hybrid Inverter - 10 year warrenty
  • Solax Battery 5.8kWh
  • Bird Grid Protection - Prevent bird nesting
  • Full roof mounting installation system


                                  No Hidden Charges!

Book Survey

Free Quotation

Friendly & experienced engineers

Professional electronic reports 

Dedicated project manager + 20 years panel warranty

Solar Panels

Solar Batteries

Solar Panels

Solar Batteries

What Is Solar Energy?

What Is Solar Energy?

Solar energy is the natural source of energy from solar power absorbed from the sun through solar panels. It is a renewable form of energy (‘Green energy') and a readily available form of energy.

 

How does a solar system work?

Solar panels absorb energy from the sun and convert it to DC electricity which is passed through a solar inverter to match your homes 230v electrical system. Its important to understand that solar energy is generated and used in real time. Our motto is "Use it, or lose it". However, battery storage can play a big role in ensuring all of your created energy is storage in readiness to be consumed once your energy requirements are most needed.


A clear positive for solar power is that, unlike the burning of fossil fuels, the conversion of sunlight into power creates no harmful greenhouse gas emissions.

Solar energy is the natural source of energy from solar power absorbed from the sun through solar panels. It is a renewable form of energy (‘Green energy') and a readily available form of energy.

 

How does a solar system work?

Solar panels absorb energy from the sun and convert it to DC electricity which is passed through a solar inverter to match your homes 230v electrical system. Its important to understand that solar energy is generated and used in real time. Our motto is "Use it, or lose it". However, battery storage can play a big role in ensuring all of your created energy is storage in readiness to be consumed once your energy requirements are most needed.


A clear positive for solar power is that, unlike the burning of fossil fuels, the conversion of sunlight into power creates no harmful greenhouse gas emissions.

What Determines How Many Solar Panel I Need?

What Determines How Many Solar Panel I Need?

1. Consumption Characteristics: Each household's energy consumption is different. A home with electrical night storage heating would require a far greater design vs a small flat with a single homeowner. Tip: review past energy bills to learn more about your household usage.


2. Roof size and orientation: Roof size, orientation and obstacles will determine how many panels can be fitted to your roof. Where roof spaces are limited we select a higher output solar panel, whilst physically larger areas will require fewer. In other cases an East and West split system would require more panels to ensure solar production is maintained throughout the day.


3. Oversize Array: Due to often overcast weather in the UK we design to oversize the solar array ensuring solar panels generation is boosted towards 3.68Kwh threshold.

1. Consumption Characteristics: Each household's energy consumption is different. A home with electrical night storage heating would require a far greater design vs a small flat with a single homeowner.
Tip: review past energy bills to learn more about your household usage.


2. Roof size and orientation: Roof size, orientation and obstacles will determine how many panels can be fitted to your roof. Where roof spaces are limited we select a higher output solar panel, whilst physically larger areas will require fewer. In other cases an East and West split system would require more panels to ensure solar production is maintained throughout the day.


3. Oversize Array: Due to often overcast weather in the UK we design to oversize the solar array ensuring solar panels generation is boosted towards 3.68Kwh threshold.

Solar Panels Maintenance

There is no maintenance required for solar panels. You will most likely need one professional check per year to ensure that they are still working efficiently, but they are long lasting with little upkeep.


You simply need to ensure their surface is clean and they’re not overshadowed by trees. You will need to replace the inverter after 20 years which costs about £800, but solar panels will last 20+ years with little maintenance required.

Solar Panels Maintenance

There is no maintenance required for solar panels. You will most likely need one professional check per year to ensure that they are still working efficiently, but they are long lasting with little upkeep.


You simply need to ensure their surface is clean and they’re not overshadowed by trees. You will need to replace the inverter after 20 years which costs about £800, but solar panels will last 20+ years with little maintenance required.

Can Solar Power Be Generated On A Cloudy Day?

Yes, it can! The UK may not seem the best country for generating energy from the sun, but solar power only requires a low level of daylight in order to harness the sun’s energy.


That said, the rate at which solar panels generate electricity does vary depending on the amount of direct sunlight and the quality, size, number and location of panels in use.

Can Solar Power Be Generated On A Cloudy Day?

Yes, it can! The UK may not seem the best country for generating energy from the sun, but solar power only requires a low level of daylight in order to harness the sun’s energy.


That said, the rate at which solar panels generate electricity does vary depending on the amount of direct sunlight and the quality, size, number and location of panels in use.

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 Battery Storage

What Is a Battery Storage?

 Battery Storage

What is Battery Storage?

The point of Solar Battery storage is to help you use more of the solar energy you’re creating. If you don't have battery storage, any excess electricity from solar power goes to the grid, which means you're generating power and providing it to other people without taking full advantage of the electricity your panels create.

The Science of Solar Batteries?

Lithium-ion batteries are the most popular form of solar batteries currently on the market. This is the same technology used for smartphones and other high-tech batteries.


Lithium-ion batteries work through a chemical reaction that stores chemical energy before converting it to electrical energy. The reaction occurs when lithium ions release free electrons, and those electrons flow from the negatively-charged anode to the positively-charged cathode.


This movement is encouraged and enhanced by lithium-salt electrolyte, a liquid inside the battery that balances the reaction by providing the necessary positive ions. This flow of free electrons creates the current necessary for people to use electricity.


When you draw electricity from the battery, the lithium ions flow back across the electrolyte to the positive electrode. At the same time, electrons move from the negative electrode to the positive electrode via the outer circuit, powering the plugged-in device.


Home solar power storage batteries combine multiple ion battery cells with sophisticated electronics that regulate the performance and safety of the whole solar battery system. Thus, solar batteries function as rechargeable batteries that use the power of the sun as the initial input that kickstarts the whole process of creating an electrical current.

The Science of Solar Batteries?

Lithium-ion batteries are the most popular form of solar batteries currently on the market. This is the same technology used for smartphones and other high-tech batteries.


Lithium-ion batteries work through a chemical reaction that stores chemical energy before converting it to electrical energy. The reaction occurs when lithium ions release free electrons, and those electrons flow from the negatively-charged anode to the positively-charged cathode.


This movement is encouraged and enhanced by lithium-salt electrolyte, a liquid inside the battery that balances the reaction by providing the necessary positive ions. This flow of free electrons creates the current necessary for people to use electricity.


When you draw electricity from the battery, the lithium ions flow back across the electrolyte to the positive electrode. At the same time, electrons move from the negative electrode to the positive electrode via the outer circuit, powering the plugged-in device.


Home solar power storage batteries combine multiple ion battery cells with sophisticated electronics that regulate the performance and safety of the whole solar battery system. Thus, solar batteries function as rechargeable batteries that use the power of the sun as the initial input that kickstarts the whole process of creating an electrical current.

Comparing Battery Storage Technologies

Comparing Battery Storage Technologies

When it comes to solar battery types, there are two common options: lithium-ion and lead-acid. Solar panel companies prefer lithium-ion batteries because they can store more energy, hold that energy longer than other batteries, and have a higher Depth of Discharge.

Also known as DoD, Depth of Discharge is the percentage to which a battery can be used, related to its total capacity. For example, if a battery has a DoD of 95%, it can safely use up to 95% of the battery’s capacity before it needs to be recharged.


Lithium-Ion Battery

As mentioned earlier, battery manufacturers prefer lithium-ion battery technology for its higher DoD, reliable lifespan, ability to hold more energy for longer, and a more compact size. However, because of these numerous benefits, lithium-ion batteries are also more expensive compared to lead-acid batteries.


Lead-Acid Battery

Lead-acid batteries (the same technology as most car batteries) have been around for years, and have been used widely as in-home energy storage systems for off-grid power options. While they are still on the market at pocket-friendly prices, their popularity is fading due to low DoD and shorter lifespan.

 

BATTERY CAPACITY - KWH

Battery size, also known as Capacity, is the maximum amount of energy in kilowatt-hours, that a battery can store at a given time. Some solar batteries such as the Growatt 3.3kWh are scalable. This means you can add more energy storage gradually, and increase your battery’s capacity over time. Solar batteries come in a range of capacities, the larger the battery capacity the more expensive the batteries tends to be. In the UK, the average household uses around 8-10 kWh of electricity every day. However, the capacity of storage your project will require all depends on your energy consumption. As a solar battery should never be fully discharged, the “useable capacity” indicates the truthful amount of energy a battery can store.


LIFECYCLE

A battery’s life cycle indicates the lifespan of a solar battery. Similar to a phone or laptop battery, a solar battery can only be fully recharged and emptied a certain amount of times. Therefore, the larger amount of lifecyles a solar battery is able to perform the better! As the average lifespan of Solar Panels is 15 years, ideally you would want an energy storage system that can match it. Many solar battery manufactures offer warranties that guarantee a certain level of performance after a certain number of cycles. 


SUMMARY

The majority of solar batteries used in recent years have lithium-ion compositions, with this battery type being found in many everyday electrical appliances such as mobile phones, laptops, calculators and laser point printers. Whilst lead-acid batteries are still commonly used, the associated technology is far older than that of lithium-ion batteries. Accordingly, lithium-ion batteries operate more efficiently, with longer life spans, and provide greater depth of discharge.

For anyone looking towards a better-quality battery, Lithium-ion models are the suitable choice, however, lead-acid batteries can be appropriate in circumstances where bulk purchases and space allocation is not an issue.

Solar Panels


Are Low Maintenance


Additionally, there is no maintenance required for solar panels. You will most likely need one professional check per year to ensure that they are still working efficiently, but they are long lasting with little upkeep.


You simply need to ensure their surface is clean and they’re not overshadowed by trees. You will need to replace the inverter after 20 years which costs about £800, but solar panels will last 20+ years with little maintenance required.

How much is a Solar Battery for a House?


Comprehensive solar batteries systems usually cost between £4,500 up to over £10,000, depending on a number of specification variables such as a battery’s energy capacity, brand, construction material, lifespan and the installation cost.


A Which? Survey conducted within the UK found that 25% of the participants paid under £3,000, alongside 41% paying between £4,000 and £7,000 for a battery storage system.


This survey did exclude the cost of solar PV in a number of cases, and when looking to get the best deal it would be financially wise to consider purchasing a solar panel and battery system at the same time.


Whilst this will be beneficial, it does not prevent the possibility of finding a great deal for a solar battery as a purchase.

How much is a Solar Battery for a House?


Comprehensive solar batteries systems usually cost between £4,500 up to over £10,000, depending on a number of specification variables such as a battery’s energy capacity, brand, construction material, lifespan and the installation cost.


A Which? Survey conducted within the UK found that 25% of the participants paid under £3,000, alongside 41% paying between £4,000 and £7,000 for a battery storage system.


This survey did exclude the cost of solar PV in a number of cases, and when looking to get the best deal it would be financially wise to consider purchasing a solar panel and battery system at the same time.


Whilst this will be beneficial, it does not prevent the possibility of finding a great deal for a solar battery as a purchase.

How much is a Solar Battery for a House?

Comprehensive solar batteries systems usually cost between £4,500 up to over £10,000, depending on a number of specification variables such as a battery’s energy capacity, brand, construction material, lifespan and the installation cost.


A Which? Survey conducted within the UK found that 25% of the participants paid under £3,000, alongside 41% paying between £4,000 and £7,000 for a battery storage system.


This survey did exclude the cost of solar PV in a number of cases, and when looking to get the best deal it would be financially wise to consider purchasing a solar panel and battery system at the same time.


Whilst this will be beneficial, it does not prevent the possibility of finding a great deal for a solar battery as a purchase.

Solar Panels
Are Low Maintenance

Additionally, there is no maintenance required for solar panels. You will most likely need one professional check per year to ensure that they are still working efficiently, but they are long lasting with little upkeep.


You simply need to ensure their surface is clean and they’re not overshadowed by trees. You will need to replace the inverter after 20 years which costs about £800, but solar panels will last 20+ years with little maintenance required.

Frequently Asked Questions

  • Solar Panel Feed-in Tariff?

    The Feed-in Tarriff (FIT) Scheme was set up to offer a government guaranteed tariff. The return on investment incentivised the installation of solar power installation. The Tariff was paid for each and every Kwh generated, once registered owners would see this benefit for the next 20 years. Unfortunately in March 2019 this system was closed and was replaced with Smart Export Guarantee (SEG) 


    Through the Smart Export Guarantee, anyone generating their own electricity with a solar PV system – smaller than 5MW – can once again earn money. The scheme works differently to the FiT, in the sense that energy suppliers set their own tariffs – Compare Smart Export Guarantee Tariffs.


  • Can solar panel be fitted East/West orientation roof?

    Yes, Solar is best suited to the South roof at an angle of 45Deg, however, we do offer an East-West split array. This will ensure the morning sunrise is captured on the east side aspect with Sunset will be captured on the West Aspect. 

  • How much power solar panels generate?

    On a perfectly clear day in direct sunlight your solar generation will be calculated using the Kwh output of each panel "x" Quantity of panels:


     Ja Solar 365W x 12 Solar Panels = 4380Kwh 

  • Lowers Your Electricity Bill

    Reducing the monthly electric bill is a priority in most homes, and generating your own energy through the power of the sun is a simple way to reduce your electric bill

  • Environmentally Friendly

    Solar energy has far fewer carbon emissions than the standard forms of non-green energy that heavily rely on fossil fuels. Greenhouse gas emissions are insignificant because solar power uses no fuel combustion. 

    Each kilowatt-hour (kWh) of solar energy substantially reduces greenhouse gas emissions like CO2 and other dangerous pollutants such as sulfur oxides, nitrogen oxides, and particulate matter. 

    The more people who choose renewable energy, the cleaner our air will be.

  • Moves Us Towards Energy Independence

    Limited resources like fossil fuels will one day run out and cannot be replaced, but the sun will keep on shining for another 5 billion years or so. 

    Remaining independent will allow our renewable resources to grow as technology further develops and we find more ways to incorporate renewable energy into everyday life

  • Low Maintenance

    Most solar energy systems come with a very extended warranty—sometimes up to 25 years. Maintenance usually only requires an annual cleaning, and the solar PV and solar thermal parts will need to be changed out about every 10 years. 

    There are no moving parts, so there’s less that could break down or go wrong. Since solar energy systems are easy to maintain, you won’t have to spend too many repairs. 

    This also makes solar energy systems an attractive choice for people who might not be able to fix or maintain household appliances.