江苏公共机构分布式光伏集中建 屋顶“蓝海”变电仓

Core Viewpoint - The implementation of distributed photovoltaic projects in public institutions across Jiangsu province is rapidly advancing, demonstrating significant energy savings and carbon reduction potential, with a focus on centralized and unified construction methods to overcome challenges in project execution [1][2][3]. Group 1: Project Implementation and Impact - The first public institution microgrid project in Nanjing has been launched, covering an area of approximately 3,810 square meters, generating 875,200 kWh of green electricity annually, and reducing carbon emissions by about 667.8 tons [1]. - Since the start of the initiative, 95 public institutions in Nanjing have engaged in distributed photovoltaic construction, achieving an annual electricity generation of approximately 34 million kWh, saving energy costs of about 1.15 million yuan, and reducing carbon emissions by around 23,000 tons [4]. - Jiangsu's public institutions have a potential rooftop area of approximately 55 million square meters for solar photovoltaic projects, but challenges such as limited rooftop space and complex procurement processes have hindered progress [2][3]. Group 2: Centralized Construction Approach - The centralized and unified bidding approach has been adopted to streamline the construction of photovoltaic projects, with 403 projects initiated in 2023 alone [3]. - The provincial government has led by example, completing 17 pilot projects with a total installed capacity of approximately 1.5 MW in 2022, while city-level agencies have completed 30 projects with a capacity of 8.21 MW [3]. - The strategy of bundling multiple buildings for unified bidding has attracted investment and facilitated project implementation [4]. Group 3: Regional Development and Collaboration - Nantong has emerged as a leader in the implementation of distributed photovoltaic projects, with 279 projects and a total installed capacity of 38 MW, benefiting from national pilot programs [6]. - The collaboration between public institutions and various departments has led to the addition of 22 new photovoltaic projects in provincial universities and 2 in healthcare institutions, with a total capacity nearing 23 MW [7]. - The approach of promoting photovoltaic installations in schools and hospitals has opened up significant energy-saving opportunities, with some regions achieving installation rates of over 70% [6]. Group 4: Market Mechanisms and Innovations - The introduction of contract energy management has facilitated market participation in the construction and operation of photovoltaic projects, reducing financial burdens on public institutions [8]. - Innovative models such as "photovoltaic + charging stations" are being explored to enhance energy consumption capabilities in public institutions, allowing for market-based electricity trading [9]. - The rapid advancement in photovoltaic technology, with conversion efficiencies reaching 25%, has shortened the payback period for projects to around five years, making them more economically viable [8].