Last month the Government announced that they would be making amendments to Part L of the Building Regulations, which deals with energy efficiency in both domestic dwellings and commercial properties. These changes, which will come into effect in April 2014, are designed to bring about a 6% improvement on new-homes compared with the original 2010 standard and a 9% improvement for non-domestic buildings.

So what exactly does Part L cover? The answer is essentially ANY method of providing heat and energy to your household or commercial building. This includes electricity, hot water, heating, wall/loft insulation, lighting and more. The last revision to these regulations was made in 2010, and have since made it so that every dwelling started after the 1st October 2010 must adhere to these new rules. This also stretches to new installations which are moved even slightly after this time.

An example to give it some context: Since 2010 all central heating systems and hot water outlets must be fitted with a thermostatic mixing valve (TMV) to regulate hot water temperatures and keep them no higher than 45°C. A bath fitting before October 2010 would not need one of these, and should the homeowner choose to refurbish their bath without it moving in the room this would continue to apply. HOWEVER if he or she then decided to get a new bath a move where in the bathroom it is fitted, it would then be subject to these new requirements.

Of course the Government's flagship method to bring down the carbon footprint is the Green Deal, which is pushing for more households to adopt renewable energy methods such as solar photovoltatic, solar thermal and underfloor heating. However one other method they are trying is through ECO, which stands for Energy Company Obligation. If you're on certain benefits (visit here for the full list), are retired/disabled/have children and own or rent your home, you could find you are entitled to all or part of the cost towards boiler repair/replacements and loft/cavity wall insulation.

What will play a significant part in these new changes however is lighting efficacy. The revised Part L will include a new method for measuring lighting efficiency, which takes into account the whole installation rather than the individual components. This is called LENI - the Lighting Efficiency Numeric Indicator. The Lighting Industry Association have put together a mini guide to these new requirements, including the formula and calculations to work out luminaire efficacy the LENI, which can be viewed here

Make no mistake, there is A LOT of information and statistics surrounding Part L but hopefully this post has made things a little clearer for you and given you a better idea of what is required to help reduce Britain's carbon footprint.

View the amended Part P Document here: planningportal.gov.uk

As of last month the Government has wheeled out its latest changes to Part P of the Building Regulations in an attempt to cut down on the amount of “red tape”. In the eight years since its introduction Part P has been a vital measure in maintaining safety when it comes to electrical installations, making sure that professional electricians have the skill and competency needed to perform these tasks. In order to do certain installations, electricians (and DIYers) are required to gain their Part P certificate and join a Competent Person Scheme such as NICEIC, NAPIT or ELECSA.

The main change to the document is that it is now shorter and has greater clarity, with a notable reduction to the number of works that need to be notified to Local Authority Building Control. The full breakdown of changes is

  • Under the new regulations, any electrical work undertaken in kitchens or outdoors in no longer covered by Part P unless a new circuit is required. 
  • While before installers not registered with a Competent Person Scheme would have to notify their work so that a third-party inspector would need to check it, now these installers can instead use a registered third-party (e.g. another electrician) to sign off their work. This eliminates the cost of producing Building Regulations Compliance Certificates for some minor works, but importantly, the new regulations still retain the need to issue Electrical Installation Certificate Reports (EICRs) for all work carried out within a dwelling.
  • Reference is now made to BS 7671:2008 incorporating Amendment No. 1:2011.

The main positive that has come out of these changes is the potential new areas of work it opens up for Part P qualified electricians who can earn more from inspecting and signing off other people’s work. Organisations have also commended this new streamlined document for not compromising on safety.

However while the ESC (Electrical Safety Council) has praised the fact the Government is amending Part P, they have expressed concern over some of the changes. They believe that the areas that have seen a reduction in notifiable are reasonably high-risk according to data, and so “any electrical work must be of a particularly high standard”.

The third-party certification is also still in question, as the rules for the Approved Inspector Scheme are currently unclear. The document itself is likely to go under review again in 2015.

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