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If you’re thinking about installing a solar thermal system in your house, it’s always important to put into consideration numerous factors before you proceed. While some solar thermal systems are suitable for use at home, there are also some that are suitable for businesses or organizations which normally requires a big amount of hot water like hotels, restaurants, schools, hospitals and many more. You’ll also find some types available in the market that are suitable for communities to satisfy communal hot water demands.

It should, however, be noted that solar thermal systems do not have the capacity to produce all the hot water demand of a house. In the UK, an average household will need an annual water heating of between 3000kWh to 5000kWh. Whereas, a solar thermal system is only able to meet about 40 percent to 60 percent of this demand.

With that in mind, it’s also worth noting that during the summer months when the solar radiation is at its peak and hot water demand is relatively lower when compared to other seasons, a solar thermal system may be able to provide all of your household’s hot water needs. This implies that during this period you may not find the need to operate your boiler at all. However, during winter or colder months, when you have a higher hot water demands in contrary to a lower solar radiation, a solar thermal system will only be able to take care of about 20 percent of your household’s hot water needs. And that ultimately implies that during this period, you’ll need to rely more on a alternative or backup source of heat like gas, coal, electricity, oil or LPG.

Unlike the photovoltaic (PV) power which works to turn a part of the electromagnetic radiation of the sun directly to electrons and electricity, a solar thermal can simply be referred to as the absorption of the sun’s heat for human use. As a result, the solar thermal has a wider range of uses than the PV does in several ways. This is due to the fact that the sun’s heat can be absorbed and transported via a medium and the stored energy incorporated for several great purposes such as to heat water, to heat and cool a home or living space, to prepare a meal as well as to generate electricity. All these functions are useful for both residential and commercial spaces.

There are generally three different ranges of solar thermal energy that are being used which includes the low temperature ( for heating, cooling as well as ventilation), the mid temperature ( used for preparing meals, heating hot water and the likes) as well as the high temperature ( used for generating electricity). To focus more on generating electricity, there are a wide array of ways through which the sun’s heat can be directed at creating electricity via a heat exchanger which operates to super heat water or inert gas to power an electricity- generating plant or to produce electricity via a Stirling engine.

In order to increase their output or make them more efficient, evacuated glass tubes are used to encircle the tubes which in turn helps them to collect more heat energy while also protecting them from re-radiating the heat energy absorbed. The trough are normal positioned north to south as well as to keep tabs on the travels of the sun throughout the day.

The cost to charge an electric car in the UK varies between home, work and public charging.

For a typical electric car with a 60kWh battery and ~200 mile range:

• Charging at home: Costs about £9.20 for a full charge. *
• Charging at work: Many employers will install workplace charging points and typically offer free access throughout the day.
• Charging at public locations: Public chargepoints at supermarkets or car parks are often free to use for the duration of your stay.
• Rapid charging: Rapid charging points are normally found at motorway service stations and typically cost £6.50 for a 30 min, ~100 mile charge.

Charging an electric car at home costs about £9.20 for a full charge* and is the most convenient and cost-effective way to keep your car fully charged. Most drivers will charge their electric car overnight, waking up to a full battery every morning.

Average domestic electricity rate in the whole of the UK is about 17p per kWh.

Fully charging a 60kWh electric car will cost between £9.00 and £9.90 (depending on where you live) and give you about 200 miles of range.

* Costs calculated at 17p/kWh based on usable battery is ~54kWh (90%).

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.

What Are The Best Electric Radiators?

Being afforded options in life is what we all seek. However, when the options are obviously too much, it can have a negative impact - exactly the case with electric radiators. With so many electric radiators in the market today, identifying the best and most suitable one for your home can be less helpful and extremely confusing, and even more so when you don’t know what you want. In a world filled with a huge selection of electric radiators, some designed for general heating while others are designed for more specific purposes, where would you get started? Here we’ve put together some of best electric radiators which you can put into consideration when making a decision. Let’s have a look!

• The Rointe D Series

The D series is one of the most popular electric radiators you’ll in the market today and deservedly so.with an advanced controllability via the Rointe Connect App and TFT control panel, these series have been rightly marked out as the most sophisticated electric radiator till date. What’s more? It’s suitable for both small, medium and large rooms, as it heats from 3m2 to about 16m2. The installation and programming of the Rointe D Series is very easy as it also enables a full access to every functions included as well as consumption costs.

• The Dimplex Q-Rad

As a high end heater, the Dimplex Q-Rad is one of the most popular brands. It is designed for a large room as it can heat up an area of about 20m2. The electric radiator features simple controls, sleek and good looks and works automatically all day.

• The Haverland RCTTi

This is conveniently one of the most efficient and reliable electric radiators you’ll find around. It stands out with the possession of its Dry Stone technology which works to ensure the room is kept at the right temperature.

• The Stiebel Eltron CND

Featuring a combined radiant and convection heating, this dual heat source is a very good option for homeowners with a tight budget. It works excellently to store heat which it later releases. The electric radiator also sense when the windows are open and react intelligently to the environment.

Unlike in houses constructed in the 1960s, where you’d probably need to rewire the entire house unless the wiring is the modern PVCu coated type, majority of houses built in the 1970s would not need to be rewired. Most often than not, what they’ll need is just a consumer unit as well as an earthing upgrade. If you happen to have a consumer unit change, the electrical professional you hire would have to inspect the most parts of the property regardless. With that answered, you may also wish to know just how often a house would need to be rewired.

First and foremost, in order to make sure that your wiring is safe there’s a need to ensure that a periodic inspection is carried out by a fully licensed and qualified electrician every 10 years. Meanwhile for rental properties with tenants, the landlord is required to carry out a periodic inspection at least every 5 years. This will make sure that the electrical works in the property are safe, up to date and suitable for continued usage.

In order to determine whether your house needs to be rewired, there are some signs or indicators you’d have to watch out for. If you notice one or even a combination of the following , then you should get in touch with a registered electrician:

• Discoloured outlets and switches
• Persistent burning smell
• Outlets problems
• Flickering lights
• Tripping circuit breaker or blown fuses
• If you happen to possess aluminium wiring
• If you have continually experienced electrical shocks

It must, however, be said that rewiring a house is a messy and quite disruptive work. It’s also considered to be quite dangerous and recommended to be carried out only by a professional is well trained and experienced when it comes to tackling electrical works.

Fuse box prices will vary and a periodic inspection should be carried out first. However, domestic fuse boxes cost an average of £460. A qualified electrician will advise if yours needs to be replaced and it's always a good idea to obtain a number of quotes before committing to this.