The Planning Strategy of Wind, Photovoltaic and Storage Self-owned Power Sources for Commercials Basing on Demand-side Response

YOU Peiyu; WANG Zhidong; YANG Weihong; YANG Xiaodong; WU Cheng; PENG Li

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Electric Power Construction ›› 2026

The Planning Strategy of Wind, Photovoltaic and Storage Self-owned Power Sources for Commercials Basing on Demand-side Response

YOU Peiyu¹, WANG Zhidong¹, YANG Weihong¹, YANG Xiaodong², WU Cheng³, PENG Li⁴

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Abstract

[Objective] In order to reduce total cost of energy consumption of commercials, meet the responsibility weight of renewable energy power consumption, improve the utilization rate of new energy, and alleviate reverse overload of distribution transformers, a configuration strategy of self-owned power sources including wind, solar and energy storage under time-of-use price curve, load guideline and load baseline demand response (DR) is constructed. The constraint of allowing reverse transmission is considered. The effectiveness of participating in three types of DR to reduce total cost of energy consumption is evaluated and compared. [Methods] Taking the minimum total cost of energy consumption as the target, a two-layer optimization model is established, including alternating iterations of self-owned power source configuration during the planning phase and load baseline during the operation phase. The upper model considers the maximum of multiple predicted new energy curves at any time, establishes a self-owned power source configuration model, and solves the capacity of new energy, energy storage, and nominal discharge time. The lower model calculates the mathematical expectation of total cost of energy consumption based on the outcome of the upper model and the probability of multiple predicted new energy curves. The mathematical expectation of transmission curves is used as the load baseline and fed back to the upper model until the results of two consecutive self-owned power source configuration and the load baseline are identical. Via setting the transmission constraint of allowing reverse transmission of not exceeding 20% of the generated electricity of photovoltaic, and adjusting time-of-use price, benchmark incentive price and load guideline, the influence on economic indicators is studied. Taking a certain large commercial complex in a coastal province of China as an example for calculation and evaluation, the effectiveness of the strategy is verified from the perspective of reducing total cost of energy consumption. [Results] From the perspective of mathematical expectation, compared with the control schemes without self-owned power sources, total costs of energy consumption utilizing the proposed model are reduced by 2% to 10%. The similarities when participating in baseline DR are 98% to 100%, which are significantly higher than 82% to 86% when participating in guideline DR. Compared to guideline DR, participating in baseline DR can reduce total cost of energy consumption by 6% to 10%. The proportions of reverse transmission of photovoltaic are 0% to 10%. [Conclusions] The proposed strategy in this paper satisfies the responsibility weight of renewable energy power consumption of provincial power grids, while achieving high similarity between the load baseline and transmission curve. The set constraint of allowing reverse transmission increases the scale of self-owned power sources, significantly reducing total cost of energy consumption of commercials.

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wind,photovoltaic and storage self-owned power sources / total cost of energy consumption / DR / reverse transmission / load guideline / load baseline

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YOU Peiyu, WANG Zhidong, YANG Weihong, YANG Xiaodong, WU Cheng, PENG Li. The Planning Strategy of Wind, Photovoltaic and Storage Self-owned Power Sources for Commercials Basing on Demand-side Response[J]. Electric Power Construction. 2026

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