Hotels and other continuously operating commercial buildings require reliable power to support diverse and critical loads. Integrating solar generation, energy storage, and intelligent control can improve energy efficiency while providing faster response to grid disturbances and power interruptions.
Enhancing Energy Resilience in Commercial Buildings with Energy Storage Systems
For continuous-operation scenarios such as high-end hotels and commercial complexes, a stable power supply directly impacts customer experience and operating revenue.
Hotels typically house a variety of loads, including elevators, central air conditioning, kitchen equipment, lighting systems, and conference facilities, resulting in complex and highly fluctuating electricity demands. Any grid fluctuations or brief power outages not only disrupt normal operations but can also lead to a decline in guest experience and financial losses.
Traditional backup power typically relies on diesel generators, but these have long startup response times and present issues such as noise, maintenance requirements, and environmental impact during operation. At the same time, hotels often lack the professional integration capabilities needed to coordinate the use of solar power, energy storage, and energy management systems.
Addressing the dual needs of commercial buildings for stable power supply and energy optimization, YUNT provides an integrated PV-storage solution. Through energy storage system integration, intelligent dispatch, and rapid static transfer switch technology, we help clients optimize energy costs and ensure the reliability of critical loads.
Scenario Requirements: Commercial Buildings Place Higher Demands on Energy Systems
Commercial settings such as high-end hotels typically face the following challenges:
- Grid fluctuations affecting the stable operation of equipment;
- Higher electricity costs during peak hours;
- Complex energy management due to multiple types of loads operating simultaneously;
- The need to ensure uninterrupted power supply for critical equipment.
The project must simultaneously achieve the following:
- Reduce energy operating costs;
- Improve power supply reliability;
- Mitigate the risk of short-term power outages;
- Optimize the efficiency of renewable energy utilization.
Therefore, commercial energy storage systems must not only be capable of peak shaving and valley filling but also possess rapid response and backup power capabilities.
System Solution: Building a Solar-Storage Synergy Energy Security System
YUNT provides system design, equipment integration, control strategy optimization, and commissioning services tailored to the operational needs of hotels.
Project Configuration:
- 500 kW/500 kWh integrated photovoltaic-storage system;
- 5 grid-connected 100 kW PCS units;
- Distributed PV system;
- EMS energy management platform.
By coordinating the operation of the energy storage system with the hotel’s load and the PV system, the entire process of energy production, storage, and consumption is optimized.
The EMS platform provides real-time analysis of:
- Changes in hotel load;
- PV power generation status;
- Grid operating status;
- time-of-use electricity pricing information.
And dynamically optimizes operating strategies:
Daily Operation:
- Prioritize PV power to supply the hotel’s load;
- Excess energy is stored;
- Release energy from storage during peak hours to reduce the need to purchase electricity.
In the event of a grid anomaly:
- The static transfer switch(STS) rapidly switches to backup power mode;
- PCS provides stable power support;
- Ensuring the continuous operation of critical loads.
Leveraging the control capabilities of grid-forming PCS units, the system enhances voltage stability in environments with minor disturbances, providing commercial buildings with a more reliable energy supply.
Project Value: Creating an Energy Resilience Upgrade Solution for Commercial Buildings
Through the integration of photovoltaic and storage systems, the project helps the hotel optimize and upgrade its energy system without altering the existing power supply infrastructure.
The solution not only improves the efficiency of renewable energy utilization but also enhances the ability to respond to grid fluctuations and sudden power outages, while reducing long-term energy operational pressures.
This project demonstrates YUNT’s system integration capabilities in the areas of commercial building energy storage, critical load protection, and smart energy management, providing a replicable energy solution for continuous-operation scenarios such as European hotels and commercial parks.
