Triad Season 2015-2016

The Triad demand season has started!

The National Grid Triad demand season has started and that we’ll be sending our cliennts alert and cancellation communications over the next few months. To sign up email or visit our Intelligence area.

When we think that there is likely to be a Triad reached on a day we’ll send you an email alert with the date and time of the peak demand. If you are on a pass-through contract and are able to reduce your demand at this time, you can potentially save on the cost of National Grid transmission charges. If conditions change we’ll send you an email to cancel the alert.

What are the Triads?

Triad is the name given to the periods of maximum demand during November to February each winter. This is known as the ‘Triad Season’.

National Grid takes three periods of the highest demand during this time, which have to be separated by at least 10 days, to calculate the Transmission Network Use of System (TNUoS) charges. These are typically between 5pm and 6pm and only apply to half hourly metered sites.

Danish Heat Supply Act

Unofficial translation from Danish

Consolidated Act No. 772 of 24 July 2000


Hereby announces the Heat Supply Act No. 382 of 13 June 1990 with amendments according to Article 1 in Act No. 96 of 9 February 1994, Article 1 No. 1, in Act No. 213 of 29 March 1995, Article 1 no. 2 in Act No. 436 of 10 June 1997 and Article 1 in Act No. 451 of 31 May 2000



Objectives and Definition

Article 1. The objective of this Act is to promote the most socio-economic and environmentally friendly utilization of energy for heating buildings, supplying them with hot water and reduce the dependency of the energy system on oil.

(2) in agreement with the objectives mentioned in subsection (1), the supply of heat shall be organised with a view to promoting the highest possible degree of cogeneration of heat and power.

Article 2. For the purpose of this Act, collective heat-supply plant means any undertaking that operates the below-mentioned plants with the object of supplying energy for heating buildings and supplying them with hot water:

1) plants producing and transmitting other inflammable gasses than natural gas;

2) plants for transmitting heated water or steam from combined heat and power plants, waste incineration plants, industrial enterprises, geothermal installations, etc.;

3) district heating supply plants, solar heating plants, waste-incineration plants, etc. , including combined heat and power plants with an electric effect not greater than 25 MW;

4) block heating stations with heat generating capacity exceeding 0.25 MW, including combined heat and power plants with an electricity output not greater than 25 MW.

(2) In article 2 and 3 of the Act, collective heat plants also include distribution networks for natural gas.

(3) Excepting combined heat and power plants with an electricity effect not greater than 25 MW, the collective heat supply plants referred to in subsection (1) do not include undertakings regulated by the Act on the Exploitation of the Danish Underground or the Act on Electricity Supply.

(4) The Minister for Environment and Energy may provide regulations that the Act, wholly or in part, shall not apply to certain kinds of collective heat supply systems.

Fuel Mix for Domestic Energy Suppliers

suppliercoalgasnuclearrenewableotherCO2nuclear waste*disc. year
British Gas22.
Co-operative Energy17.
EDF Energy26.83.556.
Flow Energy46.827.18.411.95.80.5790.000702014
Good Energy0.00.00.0100.00.00.0000.000002014
Green Energy UK0.
Green Star Energy3.
LoCO2 Energy0.
OVO Energy39.322.
Spark Energy52.330.
UK Average34.025.621.616.72.10.4200.001732014

SWALEC Case Study

How regional press helped an energy supplier generate increased custom and record-breaking profile ratings

Deregulation of the domestic electricity market commenced in September 1998, meaning that all existing regional electricity companies (RECs) now faced direct competition from other suppliers. This case study looks at how one of the RECs made full use of the power of local press to protect their key customer base and double their recognition scores.


Deregulation of the gas and electricity markets proved a confusing issue for consumers. Coming to terms with being able to purchase your gas and electricity from alternative suppliers other than British Gas or your host regional electricity company – without needing to install new meters, pipes, wires, etc – was a difficult concept to communicate.

That said, the initial deregulation of the gas market in 1997 proved very successful for one energy supplier – SWALEC. A concerted effort of advertising and direct sales enabled this company to attract over 350,000 new customers in Wales alone.

The real challenge, however, came in 1999 when, following the deregulation of the electricity market, SWALEC’s task was to defend their new gas customers, as well as their existing electricity customers – in total over a million households.

The Campaign Strategy

SWALEC wanted to draw upon their Welsh heritage, yet at the same time they had no desire to appear parochial.

Their advertising agency, Golley Slater, arrived at a highly compelling, impactful, engaging and very different creative solution for this normally very conservative market. In emphasising that SWALEC is devoted to its consumers in Wales, the agency selected the former hard-man of soccer turned film actor, Vinnie Jones, to front the ads.

Drawing upon Vinnie Jones’ questionable Welsh roots (he was born in Watford and played football for the Welsh national team by virtue of the fact that his grandfather was Welsh), the campaign stressed that the benefits of living in Wales – and therefore being able to purchase best value gas and electricity from SWALEC – were clearly unobtainable to Vinnie.

The agency arrived at a creative platform of “Vinnie doesn’t live here anymore – so, no cheap gas and electricity for him!”

The Media Strategy

The £1m campaign, planned and bought by Golley Slater in Cardiff, focused on creating serious impact in its highly defensive position during what was forecast to be a fiercely competitive year in the energy market.

Kicking off with television and outdoor, the premise of “Best value energy – but only if you live in Wales” began in February 1999. This was quickly underpinned by the extensive use of regional press, using all of the major titles in key areas across the region.

Through the regional press, the campaign was able to communicate in much greater detail the benefits of purchasing gas and electricity from SWALEC. This also enabled them to use a coupon response mechanism to handle any direct enquiries.

In addition, Golley Slater planned obscure sizes (for example, 56×2 column space with rotated copy) which helped them achieve a high degree of standout without having to pay for a full page or page dominant space. Further, by adopting this strategy, they were able to maintain their presence within the medium for practically the whole year, thereby adding frequency and extending the campaign period in the face of competitive activity, particularly from national advertisers.

“Regional press in Wales provided us with a significant further strand to our communications programme, enabling us to build frequency and cover within very tightly defined geographical parameters.”
Sue Hendry, head of media – Golley Slater

The Results

Given this was principally a defensive strategy, SWALEC have been one of the most successful RECs in retaining their new gas customers and their existing electricity customers.

“This campaign has been an enormous success story. We were very fortunate to have a client with the foresight to embark on such an ambitious programme using such a controversial character as Vinnie Jones.”
Michael Leeson, Managing Director – Golley Slater

In order to track the campaign performance, SWALEC commissioned the London-based research agency BJM to monitor the advertising effectiveness of the campaign.

Awareness of SWALEC as an energy provider in Wales reached 93% and sustained that level throughout the year. Advertising awareness doubled from a pre-campaign recognition figure of 43% to over 80% in just four weeks and – with the continued regional press activity – maintained a level of around 84% for the rest of the year.

More importantly, however, the percentage of consumers who expressed a preference for SWALEC as their supplier increased from 51% prior to the campaign to 74% after 10 weeks.

“The profile of SWALEC has shifted enormously in the last 12 months, which has been due to a combination of excellent creative work and very tight media planning and buying. Regional press has certainly helped us in building our relationships at a local level with our customers in Wales.”
Ewan McConnell, Head of Marketing – SWALEC

Meters, Metering and Meter Numbers!

What kind of electricity meter do I have?

There are 3 main types of electricity meter. A single rate meter (which is the most common) for users of standard rate electricity; a multi-rate meter, which allows you to take advantage of cheap-rate electricity at off-peak times such as at night (for example, Economy 7), and a pre-payment meter, where you pay for the gas or electricity that you use, in advance, by means of a token, prepayment card or coins. The type of meter at your property will determine what type of electricity tariff you can apply for.

Will my meters change if I switch energy suppliers?

No. Your meters will not be changed in any way when you change supplier.

Who reads the meter when I change supplier?

That depends on your new supplier. Your new supplier will either arrange for someone to come and read your meter, or may ask you to take the reading. We recommend that you keep a note of the reading to ensure that you agree with the final bill from your old supplier when it arrives.

Gas meter number (MPRN)- what is it, and where do I find it?

The gas meter number is a unique number that identifies the gas meter at your property. It is sometimes also referred to as the MPRN (Meter Point Reference Number) or ‘M’ number for short.

The number is 8 to 10 digits long and can be found on your gas bill. If you cannot find your M number, you can obtain it by calling either your current supplier or the Meter Number Helpline on 0870 608 1524. (this call will cost 7p per minute plus your telephone company’s access charge).

You can use Meter Point Administration’s online service, Find My Supplier or call the Meter Point Administration Service to get details of your gas supplier. They can also provide your Meter Point Reference Number (MPRN).

Supply Number (MPAN) – what is it, and where do I find it?

The supply number is a unique number that identifies the electricity meter at your property. It is sometimes also referred to as the MPAN (Meter Point Administration Number) or ‘S’ number for short. The supply number contains important information required by your new supplier.

The number is typically 21 digits long, and can be found on your electricity bill. If you cannot find your S number, you should contact your current electricity supplier, who will be able to help you.

What does my supply number look like? What information does it contain?

A typical electricity supply number is shown below.
S 07 123 456
16 0123 6789 456

The S stands for supply. The top line contains information about whether you are a domestic or business customer, and the type of meter you have; standard rate or Economy 7. This line will change as your supply details change. The bottom line contains information about the local electricity distribution company that maintains the cables and wires carrying electricity into your home, and a unique reference number that identifies the meter in your property. This information never changes.

Can I change my Meter?

Yes you can. You might want to change your meter if you want to take advantage of different types of tariff, such as moving from a prepayment meter to a single-rate meter or, for electricity customers, to an Economy 7 meter. To do this you will need to contact your existing supplier who will arrange it for you. Please note that your supplier may charge you for this service.

Can I have my meter moved?

Yes you can. If you want to move your meter please contact your supplier. You will probably be charged for this service unless you are a disabled person in which case it will be free.

What if my meter is not measuring my energy consumption correctly?

If you think there is a problem with your meter, rather than your bill (which could be an estimate) you should first contact your supplier. They will be able to test your meter to ensure that it is working properly. If you are still concerned about the meter’s accuracy you should direct your enquiry to Citizen Advice Bureau who should be able to offer you advice on how to resolve the matter. Once the meter has been checked, if it is shown that you have been overcharged, your supplier will have to repay you what you are owed. If however the meter test shows that you have been undercharged, the supplier has the right to charge for the extra energy that you have used.

What are MPANs and MSIDs?

This guidance clarifies the definition of Meter Point Administration Numbers (MPANs) and Metering System Identifiers (MSIDs).

Each point of entry and exit onto a Distribution System Operator’s Distribution System has an associated Metering Point and each Metering Point has an associated Administration Number (MPAN) and Metering System Identifier (MSID).

MPAN is the term used in the Master Registration Agreement (MRA), while the BSC uses the term MSID. However, as the two terms describe the same entity, they can be used interchangeably when referencing a Metering Point/Metering System.

Composition of MPANs

A full MPAN is composed of the following information:

1 Profile Type – Indicates which Profile Class the Metering Point is associated with
(Non Half Hourly customers only, the Half Hourly profile class is represented as 00).

2 Meter Timeswitch Code (MTC) – Indicates the capability of the meter and the time pattern applied for a multi-rate tariff supply and other technical information (e.g. economy 7, number of registers.)

3 Line Loss Factor Class (LLFC) – Identifies the Distribution Use of System (DUoS) Tariff and Line Loss Factor Class for the Metering Point, and hence what level of DUoS charges are payable and what electrical losses have to be accounted for in making the supply to the customer.

4 Distribution Identifier – Identifies which Distribution System Operator’s Distribution System the Metering Point is connected to.

5 Unique Reference Number – A unique number (within the Distribution System) to identify the specific Metering Point.

6 Check Digit – A number calculated from the Distribution Identifier and Unique Reference Number to provide a check digit that other systems can use to validate the above identifier and reference numbers.

The combination of items 4, 5 and 6 make up a 13-digit identifier referred to as the MPAN Core; this is used throughout systems and processes as the reference or key to a particular Metering Point.

Composition of MSIDs

The Metering System Identifier (MSID) is the same as the SVA Metering System Number in the BSC. The BSC defines a SVA Metering System Number as a two digit number to identify the Distribution System, a ten digit Unique Reference Number provided by the Distributor and a check digit.

This is therefore the same composition as the MPAN Core.


While there have in the past, been complex relationships between the Settlement MSID and the MRA MPAN, this is no longer the case. A Metering System identified by a MSID is the same entity as the Metering Point identified by an MPAN Core. Therefore the two terms are interchangeable.