特写：一个家庭的“绿色账单”

Core Insights - The article highlights the financial benefits and lifestyle changes experienced by families adopting green technologies such as rooftop solar panels and electric vehicles, showcasing a shift towards sustainable living [1][2]. Group 1: Rooftop Solar Panels - The installation of rooftop solar panels has significantly reduced electricity costs for families, with one family reporting a decrease in monthly electricity expenses from over 500 yuan to around 200 yuan, alongside earning more than 200 yuan from selling excess electricity back to the grid [1]. - The local power company has facilitated the integration of rooftop solar systems into the grid, allowing residents to monitor their energy production and earnings through a mobile app [1]. Group 2: Electric Vehicles - The transition to electric vehicles has led to substantial savings on fuel costs, with one family reporting a reduction in monthly fuel expenses from 500-600 yuan for a gasoline vehicle to just over 100 yuan for charging an electric vehicle [2]. - The widespread installation of charging stations, with a ratio of 1:1 for electric vehicles to charging points, has alleviated concerns about charging accessibility for electric vehicle owners [2]. Group 3: Green Lifestyle Adoption - The trend towards green living is evident as more families are opting for low-carbon solutions, including rooftop solar, electric vehicles, and all-electric kitchens, resulting in both cost savings and reduced carbon emissions [2]. - The number of households with installed rooftop solar panels in the region has reached over 6,200, indicating a growing acceptance of renewable energy solutions [2].