Colored aluminum coil factory

Driven by the"dual carbon"goal,the energy transformation of the manufacturing industry has become an Colored aluminum coil industry consensus.As a high energy consuming industry,the carbon emissions during the production process of the  Colored aluminum coil factory mainly come from the electricity consumption of electrolytic aluminum,casting,rolling and other links.Through the collaborative layout of photovoltaic power generation and green power procurement,enterprises can build a low-carbon energy system of"spontaneous self use+external supplementation",achieving full chain carbon reduction from energy input to product output.
1.System design and capacity planning
The roof and open space of the  Colored aluminum coil factory have the potential for large-scale deployment of photovoltaic power generation systems.Taking a Colored aluminum coil factory in East China with an annual electricity consumption of 50 million kWh as an example,if monocrystalline silicon photovoltaic modules are used,the total installed capacity can reach 25MW based on a roof area of 50000 square meters and a ground area of 100000 square meters,with an annual power generation of about 28 million kWh,covering 56%of the factory's electricity demand.The photovoltaic array needs to adjust its tilt angle according to latitude and adopt an intelligent tracking system to improve power generation efficiency.
2.Integration of energy storage and microgrid
The intermittency of photovoltaic power generation can be solved through the"photovoltaic+energy storage"mode.Configuring a lithium battery energy storage system can smooth the photovoltaic output curve and ensure stable power supply for continuous production equipment such as melting furnaces.At the same time,the construction of a microgrid in the factory area will link photovoltaic power generation,energy storage systems,diesel generators,and production equipment to achieve"peak shaving and valley filling"and demand response.For example,prioritizing the use of photovoltaic power during periods of abundant sunshine,switching to energy storage or mains power during nighttime or rainy days,and reducing peak electricity bills.
3.Quantification of carbon emission reduction benefits
Replacing coal-fired power with photovoltaic power generation can reduce carbon dioxide emissions by 24600 tons annually with 28 million kilowatt hours of photovoltaic power,equivalent to planting 1.34 million trees.In addition,the waste heat recovery technology of photovoltaic systems(such as using the waste heat from the back of components for workshop heating through heat pumps)can further improve energy efficiency,with a comprehensive carbon reduction rate of over 60%.
The carbon neutrality practice of the Colored aluminum coil factory shows that photovoltaic power generation and green power procurement are not only environmental requirements,but also strategic choices to enhance competitiveness.Through the combination of"spontaneous green electricity+external green electricity+energy efficiency improvement",enterprises can achieve the transformation from high energy consumption to green manufacturing.The carbon neutrality path of the Colored aluminum coil factory will be further expanded,providing a replicable zero carbon paradigm for the global aluminum processing industry.