Electricitymap-contrib: Data for Vietnam 🇻🇳

[martincollignon]

[corradio]

do you have any source? Else I don't think it makes much sense to open an
issue (imagine if we opened an issue for every country in the world)

On Sat, Sep 28, 2019 at 9:03 AM martincollignon [e-mail]
wrote:

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[martincollignon]

I imagine this to be an easier way to allow people to see that it's something missing. It's a maximum of 198 issues ;)

[jarek]

https://en.evn.com.vn/ is a major organizer, but there are regional grid operators with - as I understand it - considerable degree of operational independence, for example https://www.evnhcmc.vn/

[alixunderplatz]

GOOD NEWS :)
I have found load data for Vietnam from the National Load Dispatch Centre's website:
https://www.nldc.evn.vn/

Data-URLs for 5th and 6th of May 2020 (DD/MM/YYYY):
https://www.nldc.evn.vn/Chart24hHandle.ashx?d=05/05/2020&isChangeDate=0
https://www.nldc.evn.vn/Chart24hHandle.ashx?d=06/05/2020&isChangeDate=0

Unfortunately, that data is 2 days old as of today, so its lagging behind.
Changing the &ChangeDate=0 to =1 allows you to show the most recent dataset as of "today", which should be empty for the last 2 dates.
https://www.nldc.evn.vn/Chart24hHandle.ashx?d=08/05/2020&isChangeDate=1

However, there is more data in the chart right next to the bars with hourly load info in MW and electricity prices for 4 zones. This would allow 3 separate "consumption zones" for Vietnam and a total system load:
H.Thống: System (=total load)
M.Bắc: North
M.Trung: Center
M.Nam: South

Clicking "Phụ tải" will open a separate view with some lines representing the zones.
Here's thr URL for the load data:
Phụ tải
https://www.nldc.evn.vn/PhuTaiHandle.ashx?d=08/05/2020
And for the electricity market price:
Giá thị trường
https://www.nldc.evn.vn/GiaBienHandle.ashx?d=08/05/2020

Load data goes back as far as 2012. For some reason, it will show me not 24 but less entries, no matter which day I select. You'll see as many hours for a day in the past as already shown for the recent day.

Load of 05/05/2020:
https://www.nldc.evn.vn/PhuTaiHandle.ashx?d=05/05/2020

Load of 01/01/2012:
https://www.nldc.evn.vn/PhuTaiHandle.ashx?d=01/01/2012
Price:
Giá thị trường

What totally freaks me out: Look how the load has increased... from 10 GW total load in 2012 to over 30 GW in 2020!

Here you can see the borders of the zones. They are interconnected, but we have no info on the interregional power flows. Hovering over the zones will reveal info on something like "actual load" (really? that would be too low, so forget about that) and what I assume to be "installed capacity"

Here is another website with the load data in a cleaner chart:
https://www.nldc.evn.vn/FullNewsg/100/Thong-tin-thi-truong-dien/default.aspx

If anybody wants to split the provinces to the electrical zones, compare with:
https://en.wikipedia.org/wiki/List_of_regions_of_Vietnam

If you like, we could add Vietnam as a whole, displaying its load data with a fixed carbon intensity on the map. Imports were like <1% in 2017, so no real impact.

Shares of the fuels according to IEA are leading to an average carbon intensity of 373 g/kWh:
type | share | intensity based on share
-- | -- | --
hydro | 45% | 11
coal | 34% | 279
gas | 21% | 101
oil | 0% | 2
wind | 0% | 0
biofuels | 0% | 0
  | TOTAL: | 373

Between 2018 and 2019, solar skyrocketed from 100 MW to 5.5 GW within a year (https://theaseanpost.com/article/vietnam-leading-aseans-solar-pv-market). this will have an influence on a daily basis, but we have no absolute output data yet to include it in the intensity.

TO-DOs:

• write parser which collects consumption and price data for
  
  
  
  • entire Vietnam
  
  
  • North Vietnam
  
  
  • Central Vietnam
  
  
  • South Vietnam
  
  
• include option to scrape historical dates (will only work properly while all 24 hours are displayed in the table, even for historical dates)
• (if desired) split electrical zones by provinces

[martincollignon]

Yaaaaasss!

[alixunderplatz]

@martincollignon I'm trying to write a parser for Vietnam's available data :)

[ajanssens]

I can provide translation if needed. :)

[trancept]

Hello,

I just have a look and unfortunately the data is outdated for the API used in the PR. Today (6th October) the latest data if for September the 1st :

• https://www.nldc.evn.vn/GiaBienHandle.ashx?d=01/09/2020
• https://www.nldc.evn.vn/PhuTaiHandle.ashx?d=01/09/2020

But it is possible to get data since 2011.

The API used by the chart has more recent data but still outdated (1st October) : https://www.nldc.evn.vn/Chart24hHandle.ashx?d=01/10/2020&isChangeDate=1 and give only one number per hour, no split in energy source.
The price in this API is at 0 since September the 1st.

Is it still useful ?

[floriandierickx]

Maybe also relevant for this issue:

Something more relevant @martincollignon @corradio : Pete Tunbridge and Euan Graham from @ember-climate published a report on data transparency in Asia today (including China) with an assessment of time granularity, fuel/source breakdown, spatial breakdown, additional data (capacity, ...) and ease of access. Might be interesting for future developments...

• Report: https://ember-climate.org/project/asian-transparency/

• Twitter: Euan Graham (27/11/2020) and Dave jones (27/11/2020)

_Originally posted by @floriandierickx in https://github.com/tmrowco/electricitymap-contrib/issues/1973#issuecomment-734809221_