You’re welcome, it’s always nice to see things work out. 
Yepp, as long as you use the same type of quotes at the beginning and at the end. 
It is also dependent, if you have one type of quote in your password, then you need to use the other one to surround it. If in doubt, simply use double quotes around and remove all quotes from the password itself.
@paddy0174 : I understand
My configuration.yaml file currently.
# Configure a default setup of Home Assistant (frontend, api, etc)
default_config:
# Uncomment this if you are using SSL/TLS, running in Docker container, etc.
# http:
# base_url: example.duckdns.org:8123
group: !include groups.yaml
automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml
# Text to speech
tts:
- platform: google_translate
nissan_leaf:
- username: '[email protected]'
password: 'MyPassword'
region: 'NE'
and I have also a error message
2020-05-14 14:14:46 ERROR (SyncWorker_19) [pycarwings2.pycarwings2] carwings error INVALID PARAMS: -2010
2020-05-14 14:14:47 ERROR (SyncWorker_19) [homeassistant.components.nissan_leaf] An unknown error occurred while connecting to Nissan: <class ‘pycarwings2.pycarwings2.CarwingsError’>
One at a time, so in configuration.yaml you are indented to much. The Nissan leaf component doesn’t work with " - ", see:
# Configure a default setup of Home Assistant (frontend, api, etc)
default_config:
# Uncomment this if you are using SSL/TLS, running in Docker container, etc.
# http:
# base_url: example.duckdns.org:8123
group: !include groups.yaml
automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml
# Text to speech
tts:
- platform: google_translate
nissan_leaf:
username: '[email protected]'
password: 'MyPassword'
region: 'NE'
Note the indentation and the missing " - " in front of username, password and region. 
How many indent for “username”, “password”, “region” ?
I corrected it in my post above. Two indents, no hyphen. Look here:
Yes i just understood. WHaou it’s very strict !! 
I wasn’t as well attentive
But, I have always the same error
2020-05-14 15:52:59 ERROR (SyncWorker_3) [pycarwings2.pycarwings2] carwings error INVALID PARAMS: -2010
2020-05-14 15:52:59 ERROR (SyncWorker_3) [homeassistant.components.nissan_leaf] An unknown error occurred while connecting to Nissan: <class 'pycarwings2.pycarwings2.CarwingsError'>
I’m sorry, but I have no experience with the Nissan Leaf component. The only thing I could find is this issue:
Maybe this is your issue as well? Unfortunately there is no log provided, so one can’t say.
Sorry, but I can’t be of any help with the Nissan component… 
Maybe try asking in the corresponding thread here at the forum:
Yes, you are right. Thanks
Well, the next integration is razberry (z-wave module on GPIO pin) for my fibaro sensor
nissan_leaf integration work it now
the ‘username’ is a ‘pseudo or nickname account’ and not ‘email account’
Well, I have a new issue. I try to configure a HACS in my HA instance but when I search a HACS integrations, I find it, that turn around without install it. I deleted the cache of my web browser.
Ok, I have solved my issue about HACS integration, I have changed to web browser and that work it. Chrome powaaa!!!
For the Linky thing.
Sorry the integration is broken for some people (working on my side), but I’m working on a solution.
See : https://github.com/home-assistant/core/issues/33634#issuecomment-641245398