电力企业管理招标有哪些基本形式？

Group 1 - The main forms of power enterprise management bidding include public bidding, invited bidding, competitive negotiation, single-source procurement, and electronic bidding [1] - Public bidding allows all qualified enterprises to participate, suitable for large projects, with an average cost-saving rate of 12.7% in 2023 for State Grid public bidding projects [3] - Invited bidding involves directing at least three qualified enterprises, often used in complex technical fields, with a supplier library update rate of 23% per year for Southern Power Grid [3] Group 2 - Competitive negotiation is used when technical solutions are unclear, with a time efficiency of 7-15 days, while single-source procurement is for patented technologies with a time efficiency of 3-5 days [4] - By 2025, the National Energy Administration requires that electronic bidding accounts for over 85%, with blockchain technology already applied in State Grid's procurement platform [4] - The use of electronic templates can reduce time costs by 30% and travel expenses by 40%, while smart warnings can prevent collusion in bidding [5] Group 3 - Projects over 20 million yuan must use public bidding, and two-stage bidding is recommended for immature technical solutions [5] - A supplier grading management system should be established to dynamically assess performance capabilities [5] - New fields like energy storage require innovative technical scoring criteria for bidding [5]