Hotel integrated light and storage green energy project
Project overview
Create an integrated system of "photovoltaic power generation + energy storage peak shaving + intelligent management and control" for a 300-room resort hotel, with an installed capacity of 500kW photovoltaic + 2MWh energy storage, realizing the triple value of self-use, peak and valley arbitrage and backup power supply.
Indonesia fit
Integrate BIPV, energy storage, EMS, backup power supply, green certification and after-sales operation and maintenance for hotel owners to solve the procurement pain points of "saving power but affecting the landscape", "equipment incompatibility" and "insufficient certification information"; the solution adapts to the requirements of high-end hotels in Bali for 230/400V, 50Hz continuous power supply for guest rooms, Type C/F socket terminals and silent and low-interference construction.
Professional configuration and standards
The photovoltaic side refers to IEC 61215 and IEC 61730, the energy storage side refers to IEC 62619 and IEC 62933, and the low voltage grid connection and power distribution are configured according to IEC 61439, IEC 60364 and SNI/PUIL; BIPV components focus on waterproofing, wind pressure resistance and hot spot testing, and the energy storage system is configured with LFP Battery, BMS, PCS, fire protection linkage and millisecond-level switching, complete grid-connected protection, insulation, grounding and full-load switching tests.
Key specification comparison table
| Configuration items | common practice | Optimized delivery specifications and value |
|---|---|---|
| Appearance integration | Ordinary roof supports, affecting the view | BIPV/concealed layout, taking into account hotel facade and power generation |
| Backup power | Mainly diesel engines, high in noise and maintenance | Photovoltaic + 2MWh energy storage, millisecond switching of critical loads |
| Green certification | Lack of energy consumption data support | EMS outputs energy consumption, emission reduction, and power generation reports to support green hotel declarations |
Delivery challenges and solutions
a.Challenge: High-end resort hotels have high requirements for architectural landscapes, and photovoltaics and energy storage cannot damage the facades and garden landscapes.
Solution: Using BIPV photovoltaic building materials and a concealed energy storage layout on the roof, the appearance of the equipment is consistent with the hotel style without damaging the landscape texture.
b.Challenge: Hotel occupancy rates fluctuate greatly, load peaks and valleys vary significantly, and optical-storage coordinated dispatching is difficult.
Solution: The self-developed EMS system combines hotel occupancy data to dynamically optimize scheduling, and the spontaneous self-use rate has increased to more than 85%.
c.Challenge: The hotel needs to apply for Indonesian Green Hotel Certification, which is a complicated process.
Solution: Provide full-process technical support for green hotel certification to help hotels successfully pass certification.
Project results
The comprehensive electricity bill has been reduced by 22%, saving over RMB 450,000 in annual electricity bills; after obtaining green hotel certification, the room premium capacity has increased by 8%; millisecond-level power switching means that guests have zero awareness of power outages.