Hotel Electrical Loads

Question

Hotel Electrical Loads

bdray (Electrical)

(OP)

18 Feb 04 11:17

I'm reviewing the electrical load of a 1000 bedroom hotel in London. I have not had much experience with the design of hotels but would suggest that a figure of about 2kW could be mutlipied by the number of bedrooms to give you the maximum demand of the entire building. This would include small power, lighting, a/c, cooking ect.
Is this a fair figure based on anyones experience?

skiier (Electrical) · Answer 1 · 2004-02-18 22:04:57

A 1000 units. That's a lot of power. You had better get some one with experience on this stuff. Familiar with the Electrical Code in England - or is this London, Ontario?. In Canada we "derate" our loads. For example 1.0x-watts for the 1st 100 units and then 0.8x-watts for the next 100 and so on. All your loads are not on simultaneously. For such a large project you really should get access to local codes and hire an experienced electrical engineer.

dpc (Electrical) · Answer 2 · 2004-02-19 11:35:45

You might check the IEEE Gray Book on commercial power systems. It has some typical watts/area densities for commercial facilities such as hotels. It is a little dated, but would be a starting point.

Some comparative data of load from other hotels in the area would be the best resource.

Spex (Electrical) · Answer 3 · 2004-02-22 09:16:28

Can't tell you what typical loading would be in a hotel but we supply energy saver units for use in hotel bedrooms. These are switches operated by the guest's keycard so that when they leave the room (taking their keycard with them) the power in the room is shutdown hence reducing the amount of wasted power (is there anyone who bothers to switch off all the lights and the TV before they leave their hotel room???).

Anyway PM me if you need more details (we're in Ireland), we can also help you with the card access system if you don't already have one....sorry, am I getting too commercial for this forum??

hsj (Electrical) · Answer 4 · 2004-03-01 21:54:49

Hi I have just done the design for a 300 room hotel. The load can be calculated as follows:
a)For each room:

600 W for lights and general power
1500 W to 2000 w for HVAC if electric heaters are used. If hot water is used then less just the fan load. Please ask the HVAC designer the load for HVAC.
Therefore depending upon the type of heating anywhere between 1 to 2 kW per room.
b)Lighting and general power for areas excluding rooms. This could be estimated by using 40 VA/sq.m
c)Other HVAC loads: Chillers, pumps and fans. The HVAC designer will give these loads
d) Lifts: The lift designer will give this load.
e)Plumbing: Plumbing designer will give this load
f)Audio/Visual: Generally hotels have conference rooms with audio/visual facility . Audio/visual system designer will give this load
g)Kitchen: Kitchen consultant will give this load
h)Restaurants: Restaurant operator or kitchen consultant will give this load
i)Outdoor flood lighting, signage

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Hotel Electrical Loads