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“绿电直连”这本账怎么算
Jing Ji Guan Cha Wang·2025-07-26 09:41

Core Viewpoint - The recent developments in the "green electricity direct connection" (绿电直连) model are aimed at enhancing the consumption capacity of renewable energy and providing green value to industries, despite the high construction costs and uncertain profitability associated with these projects [4][7]. Group 1: Industry Developments - The introduction of additional electrical equipment such as substations and high-voltage lines in photovoltaic power station construction reflects a shift towards "green electricity direct connection," allowing renewable energy to be supplied directly to end-users [2]. - The "green electricity direct connection" model is defined as a method where renewable energy sources like solar and wind do not connect to the public grid but supply electricity directly to specific users [2][3]. - The National Development and Reform Commission and the National Energy Administration have issued guidelines to promote the development of "green electricity direct connection," emphasizing its role in meeting corporate green energy needs [3][8]. Group 2: Cost and Economic Implications - The construction costs for "green electricity direct connection" projects are significantly higher than traditional grid connections, primarily due to the need for additional infrastructure such as transformers and transmission lines [5][6]. - For instance, the cost of transmission lines is approximately 1 million yuan per kilometer, while the cost of substations is around 100 million yuan per megawatt, making the overall investment substantial [5][6]. - Current projects are mainly undertaken by state-owned enterprises with high energy consumption, as they can better absorb the high initial costs over a longer usage period [6][7]. Group 3: Environmental and Regulatory Impact - The "green electricity direct connection" model is seen as a viable direction for the renewable energy industry due to its potential to provide clear sources of green electricity, which is beneficial for tracking carbon footprints and complying with international regulations like the EU's Carbon Border Adjustment Mechanism (CBAM) [7]. - The carbon emission factors for renewable energy sources are significantly lower than those for traditional grid electricity, with solar power at 29.92 gCO2/kWh compared to the national average of 620.5 gCO2/kWh [7]. - The push for "green electricity direct connection" aligns with broader governmental goals to increase the consumption of renewable energy in key industrial sectors, thereby driving industrial upgrades and attracting investments [8].