Hotels solution: Guestroom automation & lighting Control over EIB-KNX

Value proposition

Main drivers

• Provide an advanced experience in the guestroom through lighting control & automation.
  
• Energy efficiency functions can also be implemented.

• For the Guest, the guest room control increases the level of comfort inside the room:
  - ability to have a central point of control, on the bed side for example,
  - direct access to selected lighting scene,
  - no need to worry about turning off each light when leaving the room or going to sleep.
• For the Operator , guest room control has extended benefits
  - impact on guest satisfaction and comfort,
  - reduction of room energy consumption,
  - allows staff to have clear visibility of room status.
• Energy management for rooms which are occupied, temporarily unoccupied or vacant corresponds to different comfort levels.
  It allows substantial reduction in the consumption of fuel and electricity - between 15% and 30% of energy costs.

Differentiating factors

• High-end design with plugs & sockets from the System M & System Design range.
  
• Simple connectivity through the use of RJ45 connectors.
  
• Complete solution with wireless communication and extension module.
  
• Possible integration to third party Guestroom controller.

Architecture

Main characteristics

With the courtesy panel and key card holder, this solution improves the service level and reduces energy consumption in the room when the guest is away.
Combining sensors and a unique user interface, the advanced EIB lighting control system will meet the needs of a broad range of applications and provide additional energy savings.
With integration to third party systems, this open solution facilitates the exchange of information with the building management system. It contributes to additional energy savings and ensures improved guest comfort.

Energy savings

Typical values for a large 5 star hotel - 600 to 800 rooms:

• Energy bill: between 600.000€ & 1.000.000€ per year
  
• Split of the kW installed in the hotel: Total is around 4000 kW
  
• HVAC (Cold water production, distribution, Air Handling Units, Fan coil, Boilers, Pumps): 2300 kW
  
• Sanitary Water: 200 kW
  
• Lighting: 600 kW
  
• Lifts: 600 kW
  
• Others (Kitchen, ...): 200 kW
• Heating period: 210 days (October to April)
• Occupancy rate: 75%
• Guestroom unoccupied: 8 hours / day

Typical savings based on the proposed solutions:

• The proposed solution allows regulation, optimisation & management of occupancy fluctuation.
  
• The objective is to be able to fluctuate the temperature by a few degrees when the room is unoccupied or during the night.

A change of 1 degree in the room saves 3% of the energy bill of the HVAC system.

As HVAC is the main user of energy in the hotel, the impact of the solution is significant without reducing the comfort of the guest.