Capacity hoarding under the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) would not be tolerated, the Independent Power Producer Procurement (IPP) Office warned yesterday at a briefing for bidders under Bid Window 7. It was one of three bidders' conferences held by the Department of Mineral Resources and Energy yesterday and tomorrow. The IPP office said it had recovered capacity awarded under Bid Windows 4, 5 and 6 from bidders who had failed to start off the projects. The conference also heard that timelines for the completion of Bid Window 7 bids of the IPP programme were yet to be determined by the National Energy Regulator of SA (Nersa) and were awaiting approval of the curtailment process submitted by power utility Eskom last year. Curtailment is the reduction of output of a renewable resource in response to system security needs or temporary transmission capacity constraint to below what it could have otherwise produced.