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Solar panels provide an alternative to paying expensive National Grid energy rates, so primarily their first major benefit is helping to reduce bills. Solar PV panels will produce free electricity, whilst solar thermal panels generate heat for hot water and space heating. There are also payment incentives known as the Feed-in Tariff scheme (FITs) (for solar PV) and the Renewable Heat Incentive (for solar thermal) which guarantee a tax-free income for 20 years.

The bigger the ground source heat pump, the better right? Wrong! And you’ll definitely be sorry to make such a huge mistake. When planning to install a heat pump, determining the size of the ground source heat pump is not as direct and straightforward as many homeowners would think. Here, you’ve got only a small margin for error. When the pump is too small, the heat pump will make use of the backup heater too often and in the event whereby the heat pump is too big, it’s going to short cycle. Both situations are preferably avoided as they’ll both leave you with an expensive and inefficient system.

To get the accurate size of a heat pump, there’s usually the need to hire the services of an expert and licensed heat pump installer who possesses a top notch design calculation software. In reality, the majority of inefficient systems are caused by a lack or poor understanding of the suitable design software.

There are many factors that can influence the calculation of a home’s heat pumps size. These includes

✓ Radiators and underfloor heating sizes

✓ Insulation, property fabric as well as heat loss

✓ The number of rooms in the property

✓ The types of rooms and their uses.

✓ The desired indoor temperature for varying rooms

✓ Seasonal temperature fluctuations.

Generally, a bigger house will require a bigger ground source heat pump. With an eye on the age of the property, heat loss as well as the types of the rooms, a house of about 100 square metre can require up to 4kW ground source heat pump. And for a house that’s about 200 square metre, the ground source heat pump also doubles to 8kW.

Tesla’s top-of-the-range battery storage system is still one of the most expensive on the market. It has a huge 13.5kWh usable capacity and can even keep you up and running during a power cut. But how long does a Tesla Powerwall battery last? And does this mean it’s worth investing in one?

The Tesla Powerwall 2.0 comes with a 10-year warranty. But Tesla says that it should last way beyond this – at least 5 years longer. The standard warranty says that it should work at 70% capacity for the full 10 years – so if it loses more than 30% of its storage capacity within that time, it should still be covered.

While the Tesla Powerwall does last a long time, it has a large capacity that most average households won’t require, and it’s a costly option. After installation, the Powerwall 2.0 will set you back between £6,500 and £9,000, so ideally you want it to last past its 10-year warranty.

Before you splash out, consider the size of the solar panel system you want to install or you already have. Will it generate enough electricity to make it worth storing in the Powerwall? If not, are you expecting to upgrade your solar panels to a larger system in the future? If you are, then it might be worth investing in a Powerwall. It might also be better to wait until you come to upgrade your solar panels – the solar battery price trend is going the same way as solar panels, so they will probably continue to decrease in price as more people adopt the technology.

When people think about heat pumps, they’ll automatically have the believe that a swimming pool will require a big heat pump. Since the swimming pool has a large volume of water, then warming such a volume will require a large ground source heat pump because that volume is much larger than the normal domestic hot water tank, right? Well, that point of reasoning does seem logical especially with the information almost everywhere that ground source heat pumps are usually less efficient when it comes to heating hot water for home’s use. However, the fact is there are also some things to put into consideration that also works in favour of the ground source heat pump.

First and foremost, you should know your domestic hot water will typically be heated to a much higher temperature when compared to your swimming pool. Since you wouldn’t be using the water to disinfect your bathroom or doing your dishes in your swimming pool, then the temperature can be much lower. In fact, it’s much more comfortable and enjoyable to heat to a typical “swimming pool temperature than having it at a hot bath temperature. If you’ve ever wandered into a really hot swimming pool, you wouldn’t need any introduction to the painful discomfort that comes next.

As a result of this low temperature, your “tiny heat pump can operate a in a more efficient way which makes the use of ground source heat pumps a viable swimming pool heating option. What’s more? The ground source heat pump works for a swimming pool just like any any other application - moving the heat from the region of a warmer temperature to the cooler temperature region.

• The power of your solar panel system – there's no point buying a higher capacity battery if your system will never generate enough electricity to charge it
• How often you think you will need to charge your battery
• Your budget
• Whether you care about having the latest technology and a recognisable brand name

No, air source heat pumps aren’t particularly noisy. Most models make about the same amount of noise as a boiler or fridge. And don't forget, the unit itself is fitted to the outside of your property so you won't hear a thing when you're indoors or at nightime!

In a similar way to other major home improvement projects, some specific requirements must be met to allow for the installation of solar panels. The main reason why these standards and regulations were established is to minimize the risk of the solar system becoming an issue or potential hazard in the unforeseeable future. So if you’re thinking about buying and fitting new solar panels, you’ll probably want to know whether or not you’ll require to submit a planning permission application for approval before you can proceed.

Generally, solar panels are covered under what’s called “Permitted Development” which gives you the freedom to install your solar panels without having to apply for a planning permission. However, there are some exceptions to this rule. These exceptions include if your house is a listed building or if your house is located within a conservation area. In these exceptional cases, it’s possible that you’ll need to apply for a planning permission, but this will largely depend on the discretion of your Local Planning Authority. What’s more? Solar panels are usually subjected to normal building regulations which includes examining the roof to make sure that it can support the additional weight. You can call in a MCS certified installer to carry out this check for you.

In order to install your solar PV on your roof, you must follow these guidelines:

✓ Your solar panels shouldn’t go beyond the highest point of the roof (excluding chimneys).

✓ The solar panels shouldn’t project beyond 200mm off the roof’s edge.

✓ The solar panels should be removed once they’re no longer used to produce electricity

✓ The solar panels should be installed such that the area and building’s appearance change is minimized.

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.