Air conditioning specification on TFL’s new electric buses
Request ID: FOI-1182-2425 Date published: 07 August 2024
You asked
I have some questions regarding the air conditioning specification on TFL’s new electric buses (Single and double-decker).
1. Do new single-decker electric buses use air conditioning (using typical refrigeration and humidity/air extraction) and/or air cooling systems (without humidity extraction)?
2. What is the target saloon temperature of new single-decker electric buses?
2a. If there is no set target temperature, what is the target saloon temperature at the following external ambient temperatures?
1. -10ºc
2. 10ºc
3. 15ºc
4. 20ºc
5. 25ºc
6. 30ºc
7. 35ºc
8. 40ºc
3. Do the new double-decker electric buses use air conditioning (using typical refrigeration and humidity/air extraction) and/or air cooling systems (without humidity extraction)?
4. What is the target saloon temperature of new double-decker electric buses?
4a. If there is no set target temperature, what is the target saloon temperature at the following external ambient temperatures?
1. -10ºc
2. 10ºc
3. 15ºc
4. 20ºc
5. 25ºc
6. 30ºc
7. 35ºc
5. Is there a maximum relative humidity for London’s new electric buses?
We answered
TfL Ref: FOI-1182-2425 Thank you for your request which we received on 11 July 2024.
Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy. I can confirm that we hold the information you require. You specifically asked: To the team (or relevant employee(s)) responsible for the procurement of buses and/or setting the guidelines for the purchase of busses and/or the team responsible for passenger comfort at Transport for London, I have some questions regarding the air conditioning specification on TFL’s new electric buses (Single and double-decker). 1.Do new single-decker electric buses use air conditioning (using typical refrigeration and humidity/air extraction) and/or air cooling systems (without humidity extraction)? 2. What is the target saloon temperature of new single-decker electric buses? 2a. If there is no set target temperature, what is the target saloon temperature at the following external ambient temperatures?
-10ºc
10ºc
15ºc
20ºc
25ºc
30ºc
35ºc
40ºc
3. Do the new double-decker electric buses use air conditioning (using typical refrigeration and humidity/air extraction) and/or air cooling systems (without humidity extraction)? 4. What is the target saloon temperature of new double-decker electric buses? 4a. If there is no set target temperature, what is the target saloon temperature at the following external ambient temperatures?
-10ºc
10ºc
15ºc
20ºc
25ºc
30ºc
35ºc
5. Is there a maximum relative humidity for London’s new electric buses?
Response
1.Yes - we use air conditioning with humidity extracting function.
2. The temperature on all buses both single and double decker is set at 15 degrees for energy consumption reasons. We have a programme to improve passenger thermal comfort on future vehicles. 2a. N/A
3. Yes - we use air conditioning with humidity extracting function.
4. The temperature on all Buses both single and double decker is set at 15 deg for energy consumption reasons. We have a program to improve passenger thermal comfort on future vehicles. 4a. N/A
5. Yes, there are different target humidity requirements at different scenarios for our new electric buses.
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Yours sincerely
Sara Thomas FOI Case Management Team General Counsel Transport for London
