Commercial Distributed Rooftop Solar System Hospital Solar System

Green energy empowers smart healthcare and creates a benchmark for zero-carbon hospitals

1. Project background and hospital pain point analysis

1.1 Hospital Energy Challenges

In China , the annual electricity consumption of tertiary hospitals generally exceeds 3 million kWh , and the average annual energy cost of tertiary hospitals nationwide exceeds 20 million yuan ;

Precision medical equipment (such as MRI and CT) requires 24-hour power supply. Traditional diesel generators are noisy and produce exhaust pollution, and response delays may affect surgical safety.

The National Health Commission's "Green Hospital Building Evaluation Standards" clearly states that by 2025, the energy consumption per unit building area of all public medical institutions must be reduced by 15% .

1.2 Medical adaptability of rooftop solar

Hospital buildings have large roof areas, less obstruction, guaranteed daily sunshine hours, and huge potential installed capacity ;

The photovoltaic system can be seamlessly connected to the hospital's original power distribution network, achieving "zero power outage risk" through "grid connection + energy storage".

2. Customized Solutions

2.1 System design

Module selection: Use lightweight monocrystalline silicon modules to adapt to the roof load-bearing restrictions;

Intelligent operation and maintenance: Equipped with an AI monitoring platform, it can provide real-time warnings of power generation anomalies (such as dust coverage and shadow obstruction), and the operation and maintenance response time is ≤ 2 hours;

Emergency mode: The energy storage system prioritizes continuous power supply to key areas such as ICUs and operating rooms.

2.2 Economic Benefits

Save electricity bills

2.3 Policy dividends

Subsidies can be applied for according to local policies

You can also participate in carbon trading and enjoy stable income every year

3. Hospital-specific value highlights

3.1 Value-added in medical scenarios

Patient experience: The photovoltaic roof lowers the roof temperature, reduces air conditioning load, and improves hospital comfort.

Brand upgrade: Create an "photovoltaic + roof garden" ecological healing space to help the hospital shape the brand image of a "green hospital".

3.2 Zero-risk cooperation model

Mode A (EMC Energy Management): The hospital has no investment, our company is responsible for construction and operation, and the hospital enjoys discounted electricity prices;

Model B (financial leasing): The hospital pays in installments, and the power plant becomes the hospital’s property after it has been in operation for a certain number of years.

4. Implementation Steps and Guarantees

Survey stage: drones map the roof structure and issue a load safety report;

Grid connection approval: assist in obtaining power connection permit;

Operation and maintenance commitment: Commitment on power generation decline, otherwise compensation for the difference.

5. Successful Case Endorsement

XX University Medical School Affiliated Hospital Project

5.1 Project Overview

Hospital grade: Grade 3A comprehensive hospital

Installed capacity: 1.2MW (megawatt)

Annual power generation: about 1.2 million kWh

Coverage ratio: 15%-20% of the total electricity consumption of the hospital (covering the electricity consumption of the outpatient building and some inpatient buildings)

Grid connection time: 2018

5.2 Key highlights

• Economic benefits:

Annual electricity savings of approximately RMB 1 million (calculated based on the local industrial and commercial electricity price of RMB 0.8 per kWh);

The total investment of the system is about 8 million yuan, and the static payback period is about 8 years.

• Technical adaptation:

Adopt high-efficiency monocrystalline silicon modules + string inverters to adapt to the irregular layout of hospital roofs;

Equipped with anti-islanding protection device to ensure the power safety of medical equipment.

• Social benefits:

Annual reduction of carbon dioxide emissions is approximately 1,200 tons, equivalent to planting 6,000 trees;

Won the title of "Public Institution Energy Saving Demonstration Unit" in Zhejiang Province (2019).

• Operation and maintenance innovation:

Access to the State Grid Zhejiang Integrated Energy Service Platform to achieve real-time monitoring of power generation data;

With regular cleaning and maintenance, the power generation efficiency decay rate is less than 2% per year.