Project Overview

案例概述

In 2023, the International School of Beijing started the installation of a solar panel project initiated by a dedicated group of high school students who first proposed the idea in 2019. Their vision aimed to transform our school into a more sustainable campus by reducing reliance on fossil fuels and reducing stress on the national electric grid. After garnering support from parents, staff, and the school community, they successfully presented their plan to the Board of Trustees and school administrators. While our students faced challenges and their project was paused in the years 2020 and 2021 due to the COVID pandemic. When the time was appropriate this project was taken over by younger students who were inspired by those leading students, and they continued their advocacy and research to see this project being fully approved in the 2022 year.2023 年，北京顺义国际学校正式启动由学生发起的太阳能电池板项目。该构想最早由高中生在 2019 年提出，旨在打造绿色可持续校园，减少对化石能源依赖、减轻国家电网负担。因新冠疫情，项目在 2020-2021 年暂停，后由低年级学生接力推进，2022 年获校董会和管理层批准，期间得到家长、教职员工及社区的广泛支持。

The installation of the project unfolded in two phases. Phase One, completed in 2023, involved the installation of 1,332 solar panels on the rooftops across the campus, including gym facilities, which provided an average of 15% of the school's electricity needs. Phase Two followed a year later, adding an additional 257 panels atop the carport area at the southwest gate. This expansion brought the total to 1,589 panels, enabling the project to satisfy approximately 20% of the campus's energy demand.项目分两期实施：2023 年完成第一期，在校园各主要建筑屋顶（含体育馆）安装 1332 块太阳能电池板，满足学校约 15% 用电需求；一年后启动第二期，在西南门车棚增设 257 块，总数达 1589 块，可满足校园约 20% 电力需求。

With a total investment of 1,589 the solar panels operate at an efficiency of 22.5%, generating approximately 1,000 MWh of power annually. Since installation, ISB has significantly reduced emissions, including CO₂, SO₂, and NOx, as well as water waste. This project not only represents a step toward sustainability but also exemplifies student leadership and advocacy in driving positive change within the school community.太阳能电池板系统运行效率达 22.5%，年发电量约 1000 兆瓦时。项目实施以来，学校显著降低二氧化碳、二氧化硫、氮氧化物排放及水资源浪费，不仅是校园可持续发展的重要举措，更彰显了学生领导力，推动社区积极变革。

Company/Organization Profile

机构简介

The International School of Beijing (ISB), founded in 1980 as the first international school in Beijing, is a leading non-profit, co-educational day school serving students from Early Years through Grade 12. Located in the Shunyi District on a modern 32-acre campus, ISB provides world-class facilities such as sports domes, an aquatics center, science labs, art studios, and performing arts theaters, designed to foster both academic and extracurricular excellence. The school offers a standards-based curriculum that combines inquiry-based learning, strong Chinese cultural elements, and robust STEAM integration. High school students can pursue Advanced Placement (AP) courses, or the International Baccalaureate Diploma Programme (IBDP). Its diverse student body of over 1,800 learners represents more than 50 nationalities, With more than 200 co-curricular activities, strong wellness programs, and an emphasis on “challenging and joyful learning,” ISB equips students with the skills, values, and global mindset needed to thrive in a rapidly changing world. At ISB, sustainability is not just a value, it’s a guiding principle embedded in learning, operations, and community life. In 2018 the school launched its Sustainability Roadmap 2025, a collaborative initiative developed by students, staff and parents, structuring its efforts around four key pillars—Learning & Sharing, People, Planet, and Campus.

北京顺义国际学校（ISB）创立于 1980 年，是北京首家外籍人员子女学校，为学前至 12 年级学生提供教育服务。校园占地 32 英亩，拥有体育馆、游泳馆、实验室、艺术工作室等一流设施，课程融合探究式学习、中国文化与 STEAM 教育，高中阶段提供 AP 及 IBDP 课程。学校现有来自 50 多个国家的 1800 余名学生，开设 200 余项课外活动，注重学生健康与幸福培养。2018 年启动 2025 可持续发展路线图，围绕 “学习与分享、人、地球、校园” 四大支柱，将可持续理念融入教学、运营与社区生活，培养具备全球视野的人才。

Project Outcome

项目成果

Energy Generation: Total energy generated (2023–2025): 2,146,196.1 kWh (2.146 GWh). Annual breakdown: 2023: 273,529.10 kWh; 2024: 909,704.00 kWh; 2025 (Jan–Sep): 924,066.00 kWh (projected full year will exceed previous years). The system is performing at a high efficiency of 22.5% and is exceeding its initial annual generation goal of 1,000,000 kWh.能源产出：2023-2025 年总发电量 214.61961 万千瓦时（2.146 吉瓦时），其中 2023 年 27.35291 万千瓦时，2024 年 90.9704 万千瓦时，2025 年 1-9 月 92.4066 万千瓦时（预计全年超往年）。系统运行效率 22.5%，超过 100 万千瓦时的初始年发电目标。

Energy Savings & Efficiency: The solar panel system supplies 20% of ISB’s annual electricity consumption. This reduces reliance on grid power and supports energy self-sufficiency. The project saves the school approximately ¥500,000 annually on electricity costs.节能与效率：光伏系统满足学校年度用电量的 20% 以上，减少对电网依赖、提升能源自给能力，每年为学校节省约 50 万元电费支出。

Waste Reduction: Solar energy production generates no waste during operation. In addition, the use of solar panels has significantly reduced carbon emissions—2,285.74 tons in 2023, 7,628.64 tons in 2024, and 7,490.07 tons from January to September 2025. This reduction is equivalent to planting 92,498.65 trees in 2023, 308,712.94 trees in 2024, and 303,105.45 trees in the first nine months of 2025. It also corresponds to saving 85.45 tons of coal in 2023, 285.18 tons in 2024, and 280.0 tons from January to September 2025. By minimizing resource extraction and avoiding the waste associated with conventional energy sources such as coal and petroleum, the project directly supports SDG 12: Responsible Consumption and Production.减少废弃物：太阳能发电运行过程零排放、无废物，2023-2025 年 9 月累计减少碳排放超 1.74 万吨（2023 年 2285.74 吨、2024 年 7628.64 吨、2025 年 1-9 月 7490.07 吨），相当于植树超 70.4 万棵（2023 年 9.249865 万棵、2024 年 30.871294 万棵、2025 年 1-9 月 30.310545 万棵），节约煤炭超 650 吨（2023 年 85.45 吨、2024 年 285.18 吨、2025 年 1-9 月 280 吨），契合联合国可持续发展目标 SDG 12 “负责任的消费和生产”。

Educational value: Support HS and MS students through hands-on learning in sustainability and renewable energy. Serves as a living lab for STEM and sustainability education.教育价值：为初高中学生提供可持续发展与可再生能源领域的实践学习机会，成为 STEM 课程和可持续发展课程的 “活实验室”，培养学生环保责任感与全球公民意识，促进不同年级学生合作交流，营造开放创新的校园学习氛围。

Project Highlights

项目亮点

The student-led solar panel project highlights the International School of Beijing’s commitment to sustainability and hands-on learning. By prioritizing existing resources, this initiative fosters ecological synergies and promotes energy independence, reducing reliance on non-renewable sources. It serves as a model of environmental leadership, inspiring other schools to adopt similar practices. Additionally, the project continues to be integrated into the K-12 curriculum, enriching students' understanding of sustainability across various subjects. This initiative not only demonstrates the importance of renewable energy but also reinforces sustainability as a core value within the school community, shaping responsible future changemakers.

该项目由学生主导，彰显北京顺义国际学校对可持续发展与实践教育的承诺。项目优先利用现有资源，促进生态协同、推动能源自主，减少对不可再生能源依赖，成为环境领导力典范，为其他学校提供借鉴。同时，项目融入 K-12 全学段课程，丰富学生对多学科领域可持续发展的理解，不仅体现可再生能源的重要性，更将可持续发展确立为社区核心价值观，培养负责任的未来变革者。

Project Implementation

项目实施

Project Background: In 2019, the International School of Beijing (ISB) set a target of achieving an Energy Star building score of 50 by 2025. To support this goal, students and staff conducted a comprehensive study of on-campus renewable energy options. Their analysis identified rooftop solar as the most promising solution, offering both strong financial returns and significant environmental benefits. Building on this research, the Green Impact club launched a petition in 2022 to gauge and demonstrate community support. More than 200 high school and elementary students, together with faculty and staff, signed the petition, reflecting a strong collective commitment. The proposal was then shared with the broader ISB community to further raise awareness and encourage advocacy. Following consultations with solar panel vendors and after securing approval from local authorities, the school advanced the project. In summer 2023, ISB started to install solar panels across its main rooftop. The initiative underscored the school’s dedication to the UN Sustainable Development Goals—specifically Affordable and Clean Energy (SDG 7), Sustainable Cities and Communities (SDG 11), and Responsible Consumption and Production (SDG 12).

项目背景：2019 年，北京顺义国际学校设定 2025 年实现能源之星建筑评分 50 的目标。师生联合开展校园可再生能源研究，确定屋顶光伏为最优方案（兼具经济与环境效益）。2022 年，Green Impact 社团发起请愿，200 余名学生及教职员工签署支持，并向社区推广。经与供应商沟通、获地方政府批准后，学校于 2023 年暑期启动主楼屋顶太阳能电池板安装。该项目彰显学校对联合国可持续发展目标（SDG 7 清洁能源、SDG 11 可持续城市与社区、SDG 12 负责任消费和生产）的承诺。

Installment: After rounds of bidding of the vendors, ISB’s solar panel construction was prepared by Shuangjie Xinneng Co., Ltd., which is a company specialized in the development, design, construction, and operation and maintenance of photovoltaic power plants, charging stations, and microgrids. The preliminary design has a total installed capacity of 916.4 kWp. Each was planned to have 1,580 monocrystalline components with a peak power of 580 Wp. The project plans to recover its initial investment in the seventh year. Since the seven years are relatively shorter than 25 years life expectancy of the solar pads, the project is expected to bring significant reduction in the amount of energy wasted.

安装情况：经多轮供应商竞标，项目由专注于光伏电站、充电站、微电网开发设计与运维的双杰新能有限公司承建。初步设计总装机容量 916.4kWp，规划安装 1580 块峰值功率 580Wp 的单晶组件，预计 7 年收回初始投资（远短于太阳能组件 25 年使用寿命），有望显著减少能源浪费。

Phase I: In summer 2023, 1323 solar panels were initially constructed on the flat roof. Considering climate and latitude and other geographical characteristics of Shunyi, Beijing, the panels are inclined 15° to maximize the amount of sunlight that panels receive. Also, the photovoltaic modules have enough distance – approximately 1.8m-- to prevent occlusion from shadow of other panels. They generate over 20% of ISB’s demanded energy and integrate the energy into the low voltage distribution boxes at 380V.

第一阶段：2023 年夏季，在平屋顶安装 1323 块太阳能电池板。结合北京顺义区气候、纬度等地理特征，组件设计 15° 倾角以最大化光照利用，组件间保持约 1.8 米间距避免遮挡，所发电能接入 380V 低压配电箱，可满足学校超 20% 用电需求。

Phase II: In 2024, the solar initiative was expanded to include the parking area near the West Gate, increasing the total number of panels from 1,323 to 1,589. With this addition, the system now generates more than 20% of the school’s total electricity demand.

第二阶段：2024 年，项目扩展至西门附近停车区域，太阳能电池板总数从 1323 块增至 1589 块，系统现可满足学校超 20% 总用电需求。

Challenges: One of the main challenges was balancing project costs while reassuring the community about safety. To gain support, ISB emphasized its long-term commitment to sustainability and ensured that the system would be continuously monitored by staff. Concerns were also raised about extreme weather, particularly strong winds, and whether the panels could be maintained safely under such conditions. Another challenge was the structural load of the array, as the panels cover most of the rooftop. To address this, ISB commissioned a professional structural study, which confirmed that the roof could safely bear the additional weight. Another challenge was to get the support and approval from the local authority. Through transparent communication, technical assessments, and ongoing safety measures, the school was able to overcome these concerns and move forward with confidence.挑战：项目主要面临成本控制与社区安全顾虑平衡、极端天气（强风）下设备维护、屋顶结构承重及地方政府支持审批四大挑战。学校通过强调可持续发展长期承诺、安排专人监测系统、委托专业机构开展屋顶结构评估（确认可承受新增重量）、透明沟通与技术评估等措施，成功化解顾虑并推进项目。

The Result of the Project: Annual saving: ¥500,000.00; Return on Investment (ROI): 7 years; Annual power generation: 1000 mwh; Total power generation (Sep 2023 to Sep 2025): 2146853.1kWh; Power generation efficiency: 22.5%; Initial number of solar panels installed (2023): 1323; Current number of solar panels installed: 1589; Size of each solar panel: 2.278x1.134 m²; The total area covered with solar panels: 1323 x (2.278x1.134) x Cos15=3301 m².

项目成果数据：年节省费用 50 万元，投资回报周期 7 年，年发电量 1000 兆瓦时，2023 年 9 月 - 2025 年 9 月累计发电量 214.68531 万千瓦时，发电效率 22.5%；2023 年初始安装太阳能板 1323 块，当前 1589 块；单块太阳能板尺寸 2.278×1.134 平方米，覆盖总面积约 3301 平方米。

Project Impact & Sustainability

项目影响力、可推广性与可持续性

As a K–12 school, ISB commits resources not only to education but also to initiatives we see as essential for our community and environment. With the installation of solar panels on campus, we have significantly reduced energy consumption and pollution in Beijing. When the project began in 2023, the panels generated 273,529.10 kWh of power. By 2024, output rose dramatically to 909,704 kWh, and in just the first ten months of 2025, production already reached 924,066 kWh. This growth in clean energy generation has helped ISB cut approximately 7,000 tons of carbon emissions.作为 K-12 学校，北京顺义国际学校不仅投入资源于教育，还聚焦社区与环境关键举措。校园太阳能电池板安装后，学校显著降低北京地区能源消耗与污染：2023 年发电量 27.35291 万千瓦时，2024 年增至 90.9704 万千瓦时，2025 年前 10 个月达 92.4066 万千瓦时，清洁能源发电量增长助力学校减少约 7000 吨碳排放。

Student leadership was at the heart of this initiative, proving that students can successfully advocate for institutional and financial support in advancing environmental sustainability. The project now serves as a living laboratory, offering hands-on opportunities for students to learn about renewable technology and the UN Sustainable Development Goals (SDGs).学生领导力是项目核心，证明学生可成功争取机构与资金支持以推进环境可持续发展。项目现为 “活实验室”，为学生提供可再生能源技术与联合国可持续发展目标（SDGs）的实践学习机会。

While ISB is proud to be the first K-12 school in Beijing to adopt solar power at this scale, we see this as a starting point rather than an achievement. We hope our journey can provide ideas for other schools: to make use of existing resources, to trust students as leaders, and to embed sustainability into daily life. In this way, schools can both reduce costs and reinvest savings into education, while building a culture of environmental responsibility together.北京顺义国际学校作为北京首个大规模应用太阳能的 K-12 学校，将此视为起点而非终点。学校希望为其他学校提供借鉴：利用现有资源、信任学生领导力、将可持续理念融入日常生活。通过这种方式，学校可降低成本并将节省资金再投入教育，同时共同构建环境责任文化。

(Using AI translation)

（使用AI翻译）