What is Part P

Part P forms part of the Building Regulations. The Building Regulations are there to ensure that consistent standards are carried out and ensure the electrical installations are safe.

Part P of the Building Regulations applies to fixed electrical installations in dwellings, this also includes gardens, shared amenities in blocks of flats and any building which shares its electricity supply with a dwelling. Works carried out under Part P will be notified to and inspected by building control bodies. In order to ensure work complies with the Building Regulations it needs to be inspected by the Building Control department of the local authority. A registered contractor can self-certify their work as being compliant with Building Regulations, which means the customer saves time from having to do it themselves through the local authority.

Why do i need to use a certified installer?

By using a NICEIC certified contractor such as LED Electrical Group Limited, you will know we are assessed on a regular basis. This then ensures we are competent and able to meet the relevant technical and safety standards, codes of practice and rules of the Schemes we are registered to. LED Electrical are authorised to self-certify our work to the Local Building Control Body. This saves our customers time and money when undertaking work that requires notification under the Building Regulations.

As a NICEIC registered contractor LED Electrical provide a quality service to our customers. All work carried out by LED Electrical is fully insured.

Do I need to upgrade my consumer unit

Modern consumer units have the benefit of dual protection, not only are the cables and circuits themselves protected by trip switched called MCD’s (miniature circuit breakers) but they also include residual current devices covering the circuits in your house.

These “RCD’s” are a very important safety device and should any of the electrical devices in your house inadvertently become live due to a fault, the RCD will trip out before the fault current is large enough to become a serious danger to life.

It is always worthwhile having your consumer unit checked and if necessary upgraded to provide the maximum amount of protection for your home.

What is battery storage?

Battery storage is a viable option for those who have an alternative form of generating electricity, such as Solar PV or wind turbines. The batteries store the electricity generated from the alternative supply as opposed to exporting it to the grid

The benefits of having electricity storage with a solar PV system are as follows:

  • You will not lose any of the FiT that you normally receive each day by having a battery system installed. You will still receive exactly the same export tariff (feed in tariff) as if you would without the system.
  • As the export tariff is made up of a calculated figure of 50% on the total amount generated and not measured, you could store all the electricity that would normally be exported to the grid, yet still receive your calculated export tariff (the FiT is made up of 2 payments, the generation tariff which is calculated on 100% of all electricity you produce and the export tariff which is calculated on 50% of everything you produce).
  • Electricity, instead of being exported back to the grid, is stored in a battery system for later use when the PV system is not producing.
  • Depending on the type of battery system installed, it is possible even for a grid tied battery set, to provide a Unique Power Supply function (UPS) for specific circuits such as lighting etc which is useful in the event of power cuts.
  • For a domestic system (up to 4kW) even though the electricity is stored in the batteries, you will still be paid the same export tariffs as if it had been exported to the grid.

Can I have a battery storage system added to my existing Solar PV

Depending on the size of your PV system and the amount of electricity you export to the grid, it is possible to have a battery storage system fitted that would be charged up using any surplus electricity which is not used in your house. The batteries would store the electricity which can then be used later in the day when the PV panels are not producing.

Before deciding on whether to have a battery storage system you would need to have a site survey carried out to calculate your electricity generation and the average demand in your house.

If you have a rent a roof system you can still have a battery storage system. it does not affect your FiT and you will have the same benefits as someone who does not rent their roof.


Is it safe to use multiple extension leads connected together

It is never recommended to connect multiple extension leads together. A normal extension lead is connected by a 13amp fuse and using these to connect items that draw a lot of power will only end up causing the fuses to blow.


How can I reduce my energy consumption

The cheapest and most cost effective way is to replace your lighting with LED equivalent. These draw a fraction of the power than a standard halogen fitting. Bulbs can be purchased in many different forms as direct replacements for existing bulbs. There is no need to replace the actual light fittings themselves.

I have electric heating, is there a cheaper way to heat my house

Whereas traditional types of electric heating warm the air, infra red heating warms the fabric of the building, which is able to retain heat for longer. Infr red heating can be up to 60% more efficient than other forms of electrical heating.

Anyone wishing to consider infra red heating should have a site survey to correctly calculate the heating requirements and provide cost benefit analysis.

Can I heat my water using Solar PV

Yes. A solar heating system can be fitted to existing water heating immersion systems