Customer Service
Contact our Customer Service Team
if you want more information.

Open Monday to Friday
9:00 am to 5:30 pm

e:customerservice@airtricity.com
t: 0845 601 9093


Changes in pass-through charges (October 2011)

Northern Ireland “Fixed Price” Commercial Contract Customers: Price Notice
The unit price Airtricity charges you in your Fixed Price Contract includes both the Airtricity energy charge and the regulated pass-through costs. As highlighted in your contract, the Airtricity energy charge will remain fixed for the duration stipulated in the contract, and it is the pass-through cost only that may change. The difference is the result of the pass-through cost change only.
The various pass-through costs charged by NIE , SONI and the Single Electricity Market Operator (SEMO) for the 2011 - 2012 period have now been set, and the changes to your contract prices are detailed below.
The net adjustments will be applied to your existing prices for consumption from 1 October 2011


What are Pass-Through Costs?
Pass-through charges are the costs that all electricity suppliers must pay other entities in the Electricity Market when supplying electricity to customers such as those incurred for the use of the NIE distribution and SONI transmission systems. Usually, NIE and SONI set these charges, on an annual basis.

Pass-through charges include (which are described in the Glossary)

  • Transmission Use of Systems (TUoS)
  • Distribution Use of Systems (DUoS)
  • Public Service Obligation (PSO)
  • System Support and Services (SSS)
  • Market Operator Charges
  • Imperfection Charges
  • Supplier Capacity Charges*
  • Availability charges
  • Standing Charge
  • Reactive Charge

* - Airtricity currently fix the charges for the contract duration. This may differ from other suppliers which treat it as a pass-through charge.

How will the changes in pass-through costs impact my premises?
The level of pass-through costs applicable to your premises and the change in these costs from 1 October 2011 is dependent on Use of System (UOS) Code applicable to your premise(s) which is detailed on your advisory letter. All supply points connected to the electricity network have an associated UOS code. The UOS code is assigned by NIE T&D to the premise based on the network connection characteristics and metering configuration.
Dependent on the UOS code for the premise(s), the net adjustment to your current rates from their current level are detailed in the table below
For customers coming towards the end of your contract term, your renewal quotation will reflect the 2011/12 pass-through costs and no further adjustment will be required. 

HALF HOURLY METERING  - NET CHANGE TO TARIFFS FROM 1 OCTOBER 2011

MEDIUM    VOLTAGE
T035 T101
Summer Day  £/kWh (0.0005) 0.0013
Winter Day  £/kWh 0.0406 0.0234
Winter Peak  £/kWh (0.0375) (0.0431)
Ev & W/E  £/kWh 0.0046 0.0063
Night  £/kWh 0.0028 0.0030
Standing Charge £ / month 0.12 0.13
Availability £/KVA/Day 0.0000 0.0151
 
HIGH VOLTAGE
T201 T202 T203
Summer Day  £/kWh 0.0020 0.0026 0.0021
Winter Day  £/kWh 0.0158 0.0112 0.0151
Winter Peak  £/kWh (0.0452) (0.0478) (0.0456)
Ev & W/E  £/kWh 0.0064 0.0067 0.0065
Night  £/kWh 0.0028 0.0029 0.0029
Standing Charge £ / month 0.34 6.35 6.35
Availability £/KVA/Day 0.0069 0.0049 0.0053
 
EXTRA HIGH VOLTAGE
T301 T302 T303
Summer Day  £/kWh 0.0019 0.0027 0.0019
Winter Day  £/kWh (0.0052) (0.0041) (0.0053)
Winter Peak  £/kWh (0.0202) (0.0305) (0.0203)
Ev & W/E  £/kWh 0.0058 0.0066 0.0058
Night  £/kWh 0.0026 0.0028 0.0026
Standing Charge £ / month 15.04 29.5 29.5
Availability £/KVA/Day 0.0003 0.0003 0.0007
   

NON HALF HOUR METERING - NET CHANGE TO TARIFFS FROM 1 OCTOBER 2011


Tariff Type
Uos Code Description 

£

Popular T031 Standing Charge per day 0.0110
per kWh 0.0054
Nightsaver T032 / T034 Standing Charge per day 0.0110
per  kWh Day 0.0063
per  kWh Night 0.0023
Weekender T033 Standing Charge per day 0.0110
per  kWh Normal 0.0092
per  kWh Low 0.0028

If you have any further queries on the impact of changes in pass-through costs on your tariffs from 1 October 2011, or in relation to the services Airtricity provide, please contact our corporate account team on 0845 602 9857

 

Glossary of Terms

Pass-through costs
Pass-through charges are the costs that all electricity suppliers must pay other entities in the Electricity Market when supplying electricity to customers such as those incurred for the use of the NIE distribution and SONI transmission systems.

Transmission Use of System (TUoS)
These are the costs all electricity suppliers pay the  Transmission System Operator, SONI, to transport electricity from the generating station through the transmission grid to the distribution system (or to the customer’s site for the small number of customers connected to the transmission system). The transmission system is the high voltage system for the bulk movement of electricity. The charge, which is set by SONI, is called the Transmission Use of System (TUoS) tariff and is regulated by the Northern Ireland Authority for Utility Regulation (NIAUR).

Distribution Use of System (DUoS)
These are the costs all electricity suppliers pay Distribution system operator, NIE T&D to transport electricity from the transmission grid through the distribution system to the customer site. The distribution system is the local part of the network that serves the customer. The charge which is set by NIE is called the Distribution Use of System (DUoS) tariff and is regulated byNIAUR.

Single Electricity Market (SEM)
The All-island wholesale electricity market

System Market Operator (SMO)
This covers the cost of the development and operation of the Single Electricity Market (SEM). The cost is shared across all electricity suppliers and generators on the island of Ireland. It is a flat charge per unit of electricity on loss adjusted consumption. The charge, which is set by the SEMO, is called the Market Operator Charge and is regulated by both NIAUR and the Commission for Energy Regulation (CER).

Public Service Obligation (PSO) Levy
The Public Service Obligation (PSO) Levy is a charge relating to the costs to NIE of legacy post privatisation power purchase  contracts, the buyout of the Ballylumford  contract, Market Opening costs and the Northern Ireland Sustainable Energy Programme. These costs are spread across all electricity consumers.

Imperfection Charge (IC)
Additional costs that arise from operation of the SEM. The price calculated in the market is the lowest possible price that the electricity required on the island of Ireland could theoretically be produced at (assuming that there are no constraints). It ignores the limitations of the transmission network and is calculated with perfect foresight. As generators are obliged to sell into the SEM, they are guaranteed not to operate at a loss (variable costs only). The imperfections tariff covers the gap between the market price and the cost of dispatching generation in real time into a market where constraints in practice do exist. The charge, which is set by SEMO, is called the Imperfection Charge and is regulated by both the CER and NIAUR.

Supplier Capacity Charge (SCC)
This charge covers the capacity cost of the generators in the market. It is calculated for every 30-minute period by the SEMO. Airtricity currently fix these charges for the contract duration.


Other Charges

Availability Charge
Availability is measured in kiloVolt Amperes (kVA). It is the level of electrical capacity, which represents the load you are contracted to import from the electricity network for use in your premises. Significant penalty charges normally apply if you exceed this level.

Standing Charge
You pay a standing charge for each day of electricity used. This charge is designed to cover the basic costs that do not vary with the extent to which supply is taken up. The charge is designed to reflect the cost of basic metering, meter reading, indirect costs of holding customers’ record and other indirect costs.

Reactive Charge
A Reactive Charge applies to all ‘Wattless Energy‘ (measured in kiloVolt Ampere hours (kVArh )) recorded  in excess of 50% of the kilowatt hours (kWh) recorded in the period 16.00 -19.00 Monday to Friday during the November to February period. Wattless energy is power that is used by certain types of equipment which have a low power factor.