Article 4
1. Exceptional market circumstances shall be deemed to exist if: (a) the Nuclear Decommissioning Authority offers to sell […] for a period of […] a minimum of […] for a winter season trade and […] for a summer season trade at the prevailing wholesale market price in the wholesale market and at the end of that period such offers have not been accepted (Test A); or (b) reported trades of season ahead baseload electricity on the United Kingdom wholesale electricity market have totalled less than […] (gross), averaged over the preceding […] weeks (Test B). 2. If either test is fulfilled, the Nuclear Decommissioning Authority and Site Licensee Companies for power plants may sell new contracts for up to […] to end-users for contracts at prices below the prevailing wholesale market price on the condition that such pricing behaviour is a commercial necessity during such a period of exceptional market circumstances. 3. A period of exceptional market circumstances shall not exceed […]. In order for a subsequent period of exceptional market circumstances to commence, either Test A or Test B must again be satisfied.