News

Have you checked out OVO Greenlight?

Have you checked out OVO Greenlight?

Show first post

32 replies

Userlevel 6
Badge +1

I’m finding it really hard to believe that with wall to wall sun for this 48 hour period there are 47 hours of moderate carbon intensity forecast!

Userlevel 7
Badge

I’m finding it really hard to believe that with wall to wall sun for this 48 hour period there are 47 hours of moderate carbon intensity forecast!

In the past day there has been more electricity produced by coal than wind in the UK which is unusual but not unique. 

It is sunny but hasn't been that windy.

There is a lot of work to do to secure energy supply over the next few decades, even without phasing out gas central heating and the uptake of EVs

Lack of wind is more of an issue than lack of sun.

Userlevel 7

Really interesting point about the importance of different renewable sources, @Jeffus.

I was also unaware that wind powers us more than sun at the moment, @juliamc  - looks like by quite a margin according to this article which suggests 20% of our power was wind generated compared to 6% coming from solar (at the end of 2019 at least). These hot hot breezes aren’t cutting it at the moment it seems! :sunglasses:

Userlevel 7
Badge

The main bar graph "Your energy’s yearly carbon footprint"  on the app compares my carbon with a "home like yours" 

The bar graph on the website compares my carbon with the  "Average OVO home's impact" 

Why the different comparison? 

The more detailed info is "similar ovo home" on both the app and the website which i assume is the same as "home like yours" 

Userlevel 7

Some really detailed questions from both @juliamc and @Jeffus ! Good news is I’ve heard back from the team so strap yourselves in for some expert explanations!

 

 

The daily usage graph for electricity seems to be one hour out, eg my hot water reheats at 14:00 but the peak on the graph is at 13:00 (poss GMT v BST?)

The Carbon Intensity Forecast is also an hour out, eg this is what’s shown today at 12:00… so it’s Moderate, despite the forecast showing Low from 11:30 ??? Which is it?

 

 

You’ve hit the nail on the head in terms of BST explaining why the usage graphs are an hour out (our smart meters run on GMT throughout the year). For the carbon intensity chart its gets slightly more complicated and this is what the team had to say - 

 

So the way the carbon intensity work's is that it chunks time into 30 minute segments. The current time in carbon intensity's mind is the last full 30 minutes which has passed, so if we are at 11:59am then the last full 30 minutes would be from 11am - 11:30am so this would be the value for the current intensity on the top

 

now the bottom slider is a forecast for the next 48 hours. So if we are at 11:59am again for example, we add two chunks of the forecast together to get hourly values so that means as 11:30am-12pm hasn't passed yet and we combine this with the 12pm-12:30pm chunk.

 

A bit complex but my understanding would be that as the carbon intensity now is based on one half hour segment (the last complete half hour period) and the forecast figure is an average of two half hour segments - these might not match but the current carbon intensity level will be the slightly more accurate figure as its based on a shorter time period, does that make sense?

 

The main bar graph "Your energy’s yearly carbon footprint"  on the app compares my carbon with a "home like yours" 

The bar graph on the website compares my carbon with the  "Average OVO home's impact" 

Why the different comparison? 

The more detailed info is "similar ovo home" on both the app and the website which i assume is the same as "home like yours" 

 

Well spotted on this one too. You’ve noticed some changes were rolling out (starting on the browser version) which will be updated on the app in the next few weeks. The wording and the way we calculate the average usage which your usage is compared to have both changed slightly so you may notice a discrepancy between the figures shown on the app until we’re able to get the latest updates shown there too. In case you haven’t spotted it our community volunteer, @Blastoise186  has written a great guide to how we roll out these app updates using CodePush -

 

 

 

Userlevel 7
Badge +1

Yup, that’s spot on!

In some cases, it’s also possible that certain changes are only being rolled out slowly under particular circumstances initially, before being rolled out to wider scopes as time passes. For example:

  1. Roll out Change X for 10% of members who access MyOVO on a computer running Chromium on Ubuntu for five days
  2. Increase roll out to include a further 20% of members who use the OVO Energy app on iOS for three days
  3. Further roll out to 80% of members who use the OVO Energy app on Android
  4. Penultimate rollout to 90% of all members accessing either MyOVO or the OVO Energy app on any platform for two days
  5. Full rollout to 100% of members

This is of course just one example of how a staged or phased rollout can take place and it doesn’t even scratch the surface of what magic tricks OVO uses to pull of the wizardry. I’m not really able to reveal the secrets because I’m a true magician. And a true magician never reveals the secrets of their magic...

Userlevel 7
Badge

Ours from the last couple of weeks.

Will be interesting to see the comparison difference in winter. I suspect it will flip to us using more energy than the average. 

Am hoping the half hourly readings should give us a better idea about how best to heat the house when we are working from home. Probably more useful for us than the Greenlight.

I found Greenlight useful in terms of prompting action rather than worrying too much whether the figures were accurate. 

I did find the weekly view in Greenlight vs the monthly view on the Usage page useful. A week feels like a good time period when seeing what difference small changes make. 

I tried the energy efficient mode on our TV for the first time but the picture was terrible. We do need manufacturers to do more. Perhaps more modern TVs are better than ours. 

 

 

 

Reply