Suppliers pay network costs to other companies who operate and maintain the electricity network, as well as other costs to support government backed renewable energy schemes.
Some organisations obtain bills detailing full DUoS charges, whereas other bills may only show day and night rates. Regardless of the type of bill that is obtained charges are always made by the utility provider.
The chart shows that typically 24% of an organisation’s electricity bill is made up from network charges. This portion of the electricity bill can be influenced by installing an icPower system which could produce a 24% saving – depending on your geographically determined Triad and DUoS charges It is predicted that over the coming years the price of electricity will increase to a rate that pushes network charges to represent 40% of an electricity bill Installing IC power will minimise the DUoS and Triad charges, which on average represent 24% of total electricity bills and enable participation in National Grid incentive schemes which provide an income between £90,000 and £150,000 per MW of icPower. Typical electricity bill breakdown Network Costs Non Commodity Charges Wholesale Source: EDF Energy EXAMPLE OF DUoS CHARGES VARYING THROUGH THE DAY (SOUTH WEST UK) Green DUoS Tariff = 1.38p per kWh Amber DUoS Tariff = 1.62p per kWh Red DUoS Tariff = 10.31p per kWh (21:30 – 07:30) (07:30 – 17:00 & 19:00 – 21:30) (17:00 – 19:00) Most organisations will have these costs itemised on their supplier electricity bill and will vary dependent on your geographic location
The chart shows a typical load profile for a commercial site with no on-site renewables. The green line indicates low tariff periods, the yellow line indicates medial tariff periods, and the red region indicates the high peak tariff periods. It is this dark shaded column that illustrates the region that the facility needs to avoid, in order to prevent incurring highest costs and inconsistent supply. Fixed costs (DUoS & Triads) currently comprise 24% of the electricity bill based on Ofgem information and these charges will increase to 40% by 2020 based on NG information. By removing your site from the red DUoS tariff periods the cost of electricity is reduced by an average of 24% (subject to location within UK).
The chart shows the same profile with IC power installed. The high peak tariff period has been completely avoided by powering the site entirely from the icPower storage medium. The storage medium was charged overnight at the much cheaper green band rates and discharged during red band rates