The benefits of micro CHP
Micro-CHP has several benefits, including:
- Electricity generation as a by-product of heat - When the micro-CHP is generating heat, the internal engine or fuel cell will also generate electricity to be used in your home (or exported).
- Carbon savings - By generating electricity on-site you are saving significant amounts of carbon as there are minimal losses occurring as compared with the grid. It has been suggested that a micro CHP system can meet up to half of a home’s electricity demand.
- Financial income - Micro-CHP qualifies for the Feed-in Tariff scheme and you will be able to earn 12.89p for each kWh your system generates. You will also earn 4.64p for each kWh of electricity you export, which with the Generation tariff payment adds up to £210 a year.
- Savings on energy bills - Any electricity generated will be ‘free’ as the fuel would have been burnt to generate heat anyway.
- Installation is easy - Installing a micro-CHP unit is an easy task. Given the electricity generated, an electrician will also be involved with the installation, but this is something the installer will organise.
An average domestic micro CHP system can generate as much as 1kW of electricity per hour when warmed up. This is enough to meet up to 50% of the electricity demand in a typical home.
What to do next?
- 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.
- When does a micro CHP unit supply electricity?
- The micro CHP boiler is controlled by a thermostat, just like your current boiler. When the unit's burner is running to heat the house, electricity is generated at the same time. When the burner is not running the unit will not produce electricity.
- 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.
- What is the service life of a micro CHP system?
- The lifetime of a micro CHP unit is similar to the average service life of a normal central heating boiler.
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