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How Many Solar Panels And Batteries Do I Need?

Are you presently considering adding a solar system to your home? With several homeowners in the UK using solar now, many more are realizing the numerous benefits they stand to derive by getting one. Therefore, if you’re thinking about adding the system to your home but do not know where to start, you’ve come to the right place.

Here, we’ll help you calculate the number of solar panels and batteries you’ll need to power your home. Starting from the panels, you can begin by taken into account everything that makes use of power in your home to get a good idea of how many you’ll need.

• Firstly, you’ll have to determine the number of watts you use. Simply go through your utility bill for kilowatt-hours (kWh). This varies amongst homes and being able to identify your daily average energy usage will assist you in getting your solar needs.

• Secondly, you have to determine the peak sunlight hours - having in mind that the solar panels only work when under direct sunlight. Once determined, you can then multiply the figure in hours by your home’s hourly energy usage and divide by your selected solar panel’s wattage.

Generally for a 1500 square foot house, you might need around 15 to 18 solar panels to cover the house’s electricity.

Meanwhile for batteries, there are also some factors to be considered to determine the number of batteries you’ll need for your house. These factors include your home’s power or electricity usage, the period of time in which the battery will be used as well as the battery’ specifications. Once done, you’ll be able to calculate the number of batteries required by your home.

Also commonly referred to as a consumer unit in recent times, a fuse box is responsible for controlling and allocating of the electricity in your home. They hold the power any time there’s an overload in one of the circuits which in turn, prevents fire as well as electrical damage. Fuse boxes are often incorporated in homes but consumer units are very rapidly replacing them. Therefore, when your fuse box breaks down, it’s always a smart decision to replace them with consumer units due to the fact that they’re safer and also comply with building regulations while also being a lot easier to use. If you’re extending your home, upgrading to a larger capacity model enables you to make use of more power with the power overloading. In this post, we’re going to cover the amount you’re expected to pay to replace or install a new fuse box or consumer unit as well as the factors that may affect the cost.

For a 10 way dual RCD consumer unit, the typical cost range will be between £250 to £600, meanwhile 15 way dual RCD consumer unit should cost within the range of £300 to £700. Overall, the smaller the house, the fewer the circuits that’ll be needed, hence the difference in the aforementioned prices.

There a number of factors that can affect the cost of replacing a fuse box. These factors includes the the size of the house in question ( the bigger the house , the more the circuits there are and the bigger the fuse box needed), the location ( for instance, places like London where there are higher demands are likely to be more expensive than other regions ).

With age and use any electrical installation in your home will wear. A periodic inspection is therefore carried out to ensure your home electrics are in a satisfactory condition. With a periodic inspection: Ensure your electrical circuits aren’t overloaded, Avoid accidents such as shocks and fire hazards, Discover if there are any defective lines,Highlight any lack of earthing or bonding..

If you’re considering getting a solar thermal system, one of the first things that comes to mind is the possibility of the system functioning properly during the cold months. The short and simple answer to this question is yes, a solar thermal system works in the winter. However, the downside here is that it’ll be a lot less efficient when compared to how it operates during the warmer months or summer. As a result of this fact, you’ll likely need to rely more on your boiler, immersion heater or any other backup heating system during this period as your solar thermal system will fail to contribute as much as it does during the warmer months. So what exactly is the reason why solar thermal is less effective and less efficient in the winter period? Let’s have a look!

As you know, solar thermal system banks on the sun’s energy to heat the water for your home’s use. During the cold months or winter, the sunlight becomes a lot less available when compared to the warmer months, as a result, there’s less sunlight that’s available to be used for its solar energy. And even more so at the periods when the days are shorter or skies are clearly overcast.

Also having a great impact on a solar thermal system’s output is heavy snow. Flat plate collectors normally have the capacity to cope better during snowy conditions as the light that’s able to travel through the snow will heat up the absorber plate - thereby making the snow slide off more quickly. However, the case is contrary with evacuated tube collectors which possesses a form of vacuum insulation that’s crafted to minimize the loss of heat, meaning they can’t generate heat to melt and cause the snow to slide off in a similar way.

Are Electric Radiators Expensive To Run?

Just like many home additions, the running costs of electric radiators varies largely on a number of factors. Great number of electric radiators typically comes with an in built thermostat which is designed to turn itself off automatically when not in use in order to save energy.

However the energy provider’s set electricity charge tariff will also have a great influence on an electric radiator’s running cost. Let’s take a look at the running costs of an electric radiator!

A 600 Watt electric radiator ( on a standard electricity tariff) will usually have a running cost ranging between 4 to 6 pence each hour. However you should also take note that this scenario might change in situations whereby the electric radiator is not calling for heat the full 60 minutes of each hour. And this is more likely to be the situation as the thermostat is programmed in such a way that enables it to turn itself off immediately there’s an achievement of your required room temperature level - usually within 10 minutes from the time it was switched on. As a result of this, the running cost per hour of electric radiators will be greatly reduced to just about 1 to 2 pence.

It’s also important to note that enhancing the insulation of your home can go a long way to add to the heat retention value of each room. Consequently, the duration at which the electric radiator calls more heating will be significantly reduced, which in turn, implies a lower electricity bill.

Another key factor that can play a huge role in saving on your heating bills is the programming as well as usage of your electric radiators. Every radiator comes with an independent digital thermostat with a number of 24/7 programming options to help achieve maximum efficiency. When the radiator is properly set according to your lifestyle, you can save as much as 50 percent on your heating bills.

There are a few factors that will determine whether it’s worth getting a solar battery. They involve how much electricity you use, how often you’re at home and whether you receive any export payments.

To work out whether it’s worth getting a solar battery, you need to work out how much of the electricity you generate you’re using already. If you’re able to run all your appliances during the day while your solar panels generate electricity, then it sounds like you’re already using your electricity well. It might not be worth you getting a solar battery in this case.

However, if you’re not at home for a lot of the day, then you’ll be missing out on the electricity your panels are generating while the sun’s shining. If you install a solar battery system, you can store the electricity that your panels generate in the battery and use it when you get home. This will help you cut your electricity bills even further.

You’ll also need to consider whether you’re getting paid to export your electricity. If you’re on the Feed-in Tariff scheme (FITs) or receive payments from the Smart Export Guarantee (SEG), you’ll get paid for every unit of electricity you export to the National Grid. Before you decide whether it’s worth getting a solar battery, you’ll need to weigh up whether you’d be better off carrying on exporting your unused electricity rather than storing it to use yourself. If you’re unsure, visit the Energy Saving Trust’s website or speak to an MCS-registered installer who will be able to help you work out which is more cost-effective.