Installation of Micro CHP

Installing a micro CHP system is very simple and much like fitting a replacement boiler. With the right installer accredited by the Microgeneration Certification Scheme (MCS) you will be able to ensure that you get the installation carried out properly.

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The two things that you must check to ensure you qualify for the Feed-in-Tariff are:

  1. Your chosen micro CHP system must be MCS certified
  2. The installation must be done by an accredited MCS installer

With the current technology, micro CHP is most effective when used in older, larger homes with 3 bedrooms or more. This is because electricity is only generated when the heating system is fired. Modern, efficiently insulated or smaller homes tend to have lower heating requirements and therefore there is less of an opportunity to generate electricity.

Requirements

You will need to ensure the following:

  • You have a metered electricity supply, so that the FIT scheme can measure how much electricity you’re generating.
  • If you rent your property, you’ll need agreement from the landlord.
  • You have a suitable location to fit, most likely replacing your existing boiler. You can choose between fitting on a wall or on the floor. They are quite heavy, roughly twice the weight of normal boilers, so will need to be on a sturdy wall if you are using a wall.
  • That you size your unit correctly, as too large a unit will mean that you use it less, reducing how much electricity you are generating.
  • Currently the only available models run on mains gas or LPG so you will have to have access to this.
  • If you are looking to apply for FIT payments, check with your energy supplier to see whether they are signed up to the FIT scheme, as they will be paying you the FITs. Larger companies have to be a FIT supplier by law. You need to apply to your energy supplier to apply to the scheme.
  • Carrying out other building work at the same time could reduce your installation costs.

Just like installing a conventional boiler

Micro CHP systems usually take the same amount of time to install as a conventional boiler. The flow and return water pipes and gas connection connect just as they would in a normal boiler. The main difference is that you will need to attach an electrical connection.

Installer

We will only put you in touch with installers that use certified systems and are MCS accredited: Always use an MCS accredited installer. Only MCS accredited installers are able to sign off installations that will comply with the government’s Feed-In Tariff scheme.

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FAQs

What is micro CHP?
CHP stands for Combined Heat and Power and micro CHP describes a boiler that generates electricity from the waste heat produced by your boiler, suitable for use on a small scale, such as in a domestic home. This allows you to generate some of the your electricity from the same fuel that you are using anyway to heat your home. This is essentially free electricity, and saves energy and CO2 at the same time.
What are the benefits of the micro CHP boiler?
Micro CHP essentially allows you to generate your own free electricity using the waste heat produced by your boiler, saving energy and saving you money on your energy bill.
How long does it take to recoup the additional costs associated with buying a micro CHP boiler (compared with a high-performance boiler)?
It is expected that the payback will be five years more, although this will depend on many factors, so it is difficult to give a definite answer.
Is it possible to return any excess electricity produced by a micro CHP unit to the grid?
Yes, it is possible to return surplus electricity produced by a micro CHP unit to the grid - you will receive Feed-In Tariff Export tariff payments for doing so if you have your system installed by an MCS accredited engineer and sign up to the scheme.
What are the differences between using a micro CHP boiler and using a high-performance boiler?
Operationally, there is little difference - the only difference is that the micro CHP unit will need to be connected to your electrical wiring and will generate electricity at a very low gas cost, saving you money on your electricity bills.
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