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Re: Event: OpenEEmeter Meetup - 07/27/2022 #cal-reminder

Phil Ngo
 

Hi All!

I'm getting the zoom meeting link in the calendar resolved for next time but here's a link we can use today which does not require registration. My apologies if anyone tried to register and ran into this issue.

Phil Ngo (he/him) is inviting you to a scheduled Zoom meeting.

Topic: OpenEEmeter Meetup
Time: This is a recurring meeting Meet anytime

Join Zoom Meeting
https://us02web.zoom.us/j/84811800007?pwd=ZXN1M3lEVFdCT256aXZ5MXpUUGtSUT09

Meeting ID: 848 1180 0007
Passcode: 703004
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Meeting ID: 848 1180 0007
Passcode: 703004
Find your local number: https://us02web.zoom.us/u/kdMcnoRcVW









On Wed, Jul 27, 2022 at 5:29 AM <matt@...> wrote:

I was hoping to join this meeting, but the zoom link says I can't register as it's already happened (same happens for all future meetings).

What am I doing wrong?
Many thanks,
Matt



--

Phil Ngo (he/him)

VP of Engineering

801.244.9860 LinkedIn

 

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Re: Event: OpenEEmeter Meetup - 07/27/2022 #cal-reminder

matt@...
 

I was hoping to join this meeting, but the zoom link says I can't register as it's already happened (same happens for all future meetings).

What am I doing wrong?
Many thanks,
Matt


Event: OpenEEmeter Meetup - 07/27/2022 #cal-reminder

Group Notification <noreply@...>
 

Reminder: OpenEEmeter Meetup

When:
07/27/2022
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Re: Generating two-parameter models with EEmeter

Phil Ngo
 

Hi Ethan!

I'll point you to the code here - unfortunately this is baked in. It wouldn't be too tricky to add, though- happy to review a pull request.

This line shows the candidate model selection - you'd need to make sure the candidates included your two-parameter models:
https://github.com/openeemeter/eemeter/blob/2f99fdada349f2f5090089e534d8137ee6a82431/eemeter/caltrack/usage_per_day.py#L1844

This line shows how you might add a two-parameter model candidate - you'd have to tweak this formula and add another function to generate the model candidate:
https://github.com/openeemeter/eemeter/blob/2f99fdada349f2f5090089e534d8137ee6a82431/eemeter/caltrack/usage_per_day.py#L1460

Hope that helps,

Phil

On Tue, Jul 5, 2022 at 2:11 PM Ethan Goldman <ethan.goldman@...> wrote:
Here's a question (or perhaps a feature request) for others who might be using EEmeter for gas meter modeling: there is a flag to force EEmeter to ignore cooling energy (fit_hdd_only), but can you force it to generate a "two-parameter" model with just slope and intercept?

Here I mean a more traditional X-intercept, not a base load. For background, I'm modeling run-time data from a gas furnace (metering the gas solenoid valve), so I'm quite sure there is no non-heating "base" load represented in my data! (I'm using eemeter v.3.1.0, FWIW) 

Currently, EEmeter is giving me a model that adds about 20% more energy in the annual base load to a typical heating season for this area. It's also likely picking the wrong balance point, might be skewing the slope a bit, and (most importantly) doesn't actually produce a model that matches the physical reality of the data. 

I realize this is a bit of an edge case since I'm technically modeling sub-meter data, but it's pure HVAC and definitely weather-dependent, so it seemed like a reasonably good fit for EEmeter. Does anyone have an easy fix, or would I need to add some new functionality to the code to get this behavior to work?

Thanks,
Ethan



--

Phil Ngo (he/him)

VP of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


Generating two-parameter models with EEmeter

Ethan Goldman
 

Here's a question (or perhaps a feature request) for others who might be using EEmeter for gas meter modeling: there is a flag to force EEmeter to ignore cooling energy (fit_hdd_only), but can you force it to generate a "two-parameter" model with just slope and intercept?

Here I mean a more traditional X-intercept, not a base load. For background, I'm modeling run-time data from a gas furnace (metering the gas solenoid valve), so I'm quite sure there is no non-heating "base" load represented in my data! (I'm using eemeter v.3.1.0, FWIW) 

Currently, EEmeter is giving me a model that adds about 20% more energy in the annual base load to a typical heating season for this area. It's also likely picking the wrong balance point, might be skewing the slope a bit, and (most importantly) doesn't actually produce a model that matches the physical reality of the data. 

I realize this is a bit of an edge case since I'm technically modeling sub-meter data, but it's pure HVAC and definitely weather-dependent, so it seemed like a reasonably good fit for EEmeter. Does anyone have an easy fix, or would I need to add some new functionality to the code to get this behavior to work?

Thanks,
Ethan


Event: OpenEEmeter Meetup - 04/27/2022 #cal-reminder

openeemeter@lists.lfenergy.org Calendar <noreply@...>
 

Reminder: OpenEEmeter Meetup

When:
04/27/2022
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Event: OpenEEmeter Meetup - 01/26/2022 #cal-reminder

openeemeter@lists.lfenergy.org Calendar <noreply@...>
 

Reminder: OpenEEmeter Meetup

When:
01/26/2022
12:30pm to 2:00pm
(UTC-08:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Event: OpenEEmeter Meetup - 10/27/2021 #cal-reminder

openeemeter@lists.lfenergy.org Calendar <noreply@...>
 

Reminder: OpenEEmeter Meetup

When:
10/27/2021
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Re: Event: OpenEEmeter Meetup - 07/28/2021 #cal-reminder

Phil Ngo
 

Anyone who is waiting to join the meetup, the link seems to be broken - here's a link we can use: https://zoom.us/j/4709773201?pwd=Y3MzYjVBOU9mMEc2ZVp4dUl6RDR0QT09


On Tue, Jul 27, 2021 at 12:30 PM openeemeter@... Calendar <noreply@...> wrote:

Reminder: OpenEEmeter Meetup

When:
07/28/2021
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!



--

Phil Ngo (he/him)

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


Event: OpenEEmeter Meetup - 07/28/2021 #cal-reminder

openeemeter@lists.lfenergy.org Calendar <noreply@...>
 

Reminder: OpenEEmeter Meetup

When:
07/28/2021
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles

Where:
https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


OpenEEmeter Meetup - Wed, 04/28/2021 12:30pm-2:00pm, Please RSVP #cal-reminder

openeemeter@lists.lfenergy.org Calendar <openeemeter@...>
 

Reminder: OpenEEmeter Meetup

When: Wednesday, 28 April 2021, 12:30pm to 2:00pm, (GMT-07:00) America/Los Angeles

Where:https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

An RSVP is requested. Click here to RSVP

Organizer: Phil Ngo phil@...

Description: OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Last Chance to Register | LF Energy Spring Summit is TOMORROW

Lindsay Mays Gendreau
 

Hello OpenEEmeter Community,

We hope you all are doing well & having a great week!  We look forward to seeing you all tomorrow, April 14, for the LF Energy Spring Summit - Virtual!

If you have not registered yet, there are still tickets available.  REGISTER NOW - you don't want to miss this event! Check out the innovative and engaging event line-up here.

If you have questions about the Summit, please reach out to operations@... - we're happy to help!

See you tomorrow!

Arjan, Lucian, Jonas, Daniel, Shuli, John, Carly, and Lindsay
LF Energy Board & Staff


OpenEEmeter Meetup - Wed, 01/27/2021 12:30pm-2:00pm, Please RSVP #cal-reminder

openeemeter@lists.lfenergy.org Calendar <openeemeter@...>
 

Reminder: OpenEEmeter Meetup

When: Wednesday, 27 January 2021, 12:30pm to 2:00pm, (GMT-08:00) America/Los Angeles

Where:https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

An RSVP is requested. Click here to RSVP

Organizer: Phil Ngo phil@...

Description: OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Re: Instantaneous current and voltage measurements

Phil Ngo
 

Hi Ben,

If I'm understanding correctly, it doesn't sound to me like the OpenEEmeter will be a good fit for that application. The OpenEEmeter is not generally used directly on IoT devices and works with hourly energy usage data (e.g., kWh, Therms), not yet with current or voltage data, and not yet with data sampled at rates higher than hourly.

If in the future you would like to build models of building energy usage based on temperature and or time of day, the OpenEEmeter will definitely be able to help!

Thanks for reaching out and best wishes with your project.

Phil

On Wed, Dec 30, 2020 at 1:48 PM <benpayeur@...> wrote:

[Edited Message Follows]

Hello All,

I'm new here and trying to get some background about OpenEEmeter.  I am looking for something that will facilitate the collection of instantaneous current and voltage measurements at a reasonably high sampling rate.  The purpose of doing this is for microgrid research at a university.  Is OpenEEmeter appropriate for this application?  Are there examples of common hardware platforms that OpenEEmeter is run on?  Any advice or direction that the group is willing to give is greatly appreciated!

-Ben



--

Phil Ngo

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


Instantaneous current and voltage measurements

benpayeur@...
 
Edited

Hello All,

I'm new here and trying to get some background about OpenEEmeter.  I am looking for something that will facilitate the collection of instantaneous current and voltage measurements at a reasonably high sampling rate.  The purpose of doing this is for microgrid research at a university.  Is OpenEEmeter appropriate for this application?  Are there examples of common hardware platforms that OpenEEmeter is run on?  Any advice or direction that the group is willing to give is greatly appreciated!

-Ben


OpenEEmeter Meetup - Wed, 10/28/2020 12:30pm-2:00pm, Please RSVP #cal-reminder

openeemeter@lists.lfenergy.org Calendar <openeemeter@...>
 

Reminder: OpenEEmeter Meetup

When: Wednesday, 28 October 2020, 12:30pm to 2:00pm, (GMT-07:00) America/Los Angeles

Where:https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9

An RSVP is requested. Click here to RSVP

Organizer: Phil Ngo phil@...

Description: OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

Free to attend, register now!


Re: OpenEEmeter Meetup

Phil Ngo
 

Hi everyone!

The OpenEEmeter meetup is just less than a week away, on October 28 @ 12:30-2pm Pacific. We'll be having a show and tell, with one or two spots left for showing off a project either using or adjacent to the OpenEEmeter. As we did last time, we'll also have time for Q&A about using or contributing to the OpenEEmeter python packages, as well as a quick intro to the project if you're joining for the first time.

Si - we'd love to have you present on what you're doing at the Hyperledger Energy Working Group if you are still available. Any other takers?

Webinar signup link: https://zoom.us/meeting/register/tJ0vcOyqqD4vGdSFUCNpKfCbeOWUpGaO0vA9.

Looking forward to it!
Phil

On Mon, Sep 21, 2020 at 12:51 PM Si Chen <sichen@...> wrote:
Hi Phil,

Thanks for setting this up.

I'd like to share a little bit about what we're doing at the Hyperledger Energy Working Group.  Hyperledger is the open source blockchain project of the Linux Foundation.  I think it will have a lot of potential synergies with what you're doing.

Would you be able to give me 15 minutes to talk about this?

-----
Si Chen
Open Source Strategies, Inc.

Join our Hyperledger Open Source Carbon Accounting & Certification Working Group - Video



On Sat, Sep 19, 2020 at 10:22 AM Phil Ngo <phil@...> wrote:
Hi OpenEEmeter users!

The second OpenEEmeter meetup is scheduled for October 28, 12:30-2pm Pacific, so be sure to get it on your calendar if you haven't yet! As requested at the kickoff event, this meetup will be centered around a "show and tell", for which we will be offering a few 15-30 minute slots to discuss a project either using or adjacent to the OpenEEmeter. Please send proposals to me with a short description of what you would like to show off and how much time you think you'd need and we'll get you in if we still have room. We will send out a sign up link for attendees and presenters when we get closer to the event.

I'm looking forward to this!

Phil

--

Phil Ngo

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter



--

Phil Ngo

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


Re: OpenEEmeter Meetup

Si Chen <sichen@...>
 

Hi Phil,

Thanks for setting this up.

I'd like to share a little bit about what we're doing at the Hyperledger Energy Working Group.  Hyperledger is the open source blockchain project of the Linux Foundation.  I think it will have a lot of potential synergies with what you're doing.

Would you be able to give me 15 minutes to talk about this?

-----
Si Chen
Open Source Strategies, Inc.

Join our Hyperledger Open Source Carbon Accounting & Certification Working Group - Video



On Sat, Sep 19, 2020 at 10:22 AM Phil Ngo <phil@...> wrote:
Hi OpenEEmeter users!

The second OpenEEmeter meetup is scheduled for October 28, 12:30-2pm Pacific, so be sure to get it on your calendar if you haven't yet! As requested at the kickoff event, this meetup will be centered around a "show and tell", for which we will be offering a few 15-30 minute slots to discuss a project either using or adjacent to the OpenEEmeter. Please send proposals to me with a short description of what you would like to show off and how much time you think you'd need and we'll get you in if we still have room. We will send out a sign up link for attendees and presenters when we get closer to the event.

I'm looking forward to this!

Phil

--

Phil Ngo

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


OpenEEmeter Meetup

Phil Ngo
 

Hi OpenEEmeter users!

The second OpenEEmeter meetup is scheduled for October 28, 12:30-2pm Pacific, so be sure to get it on your calendar if you haven't yet! As requested at the kickoff event, this meetup will be centered around a "show and tell", for which we will be offering a few 15-30 minute slots to discuss a project either using or adjacent to the OpenEEmeter. Please send proposals to me with a short description of what you would like to show off and how much time you think you'd need and we'll get you in if we still have room. We will send out a sign up link for attendees and presenters when we get closer to the event.

I'm looking forward to this!

Phil

--

Phil Ngo

Director of Engineering

801.244.9860 LinkedIn

 

Recurve.com Newsletter LinkedInAngelListTwitter


Event: OpenEEmeter Meetup #cal-invite

openeemeter@lists.lfenergy.org Calendar <openeemeter@...>
 

OpenEEmeter Meetup

When:
Wednesday, 28 October 2020
12:30pm to 2:00pm
(UTC-07:00) America/Los Angeles
Repeats: Every 3 months on the fourth Wednesday

Where:
Zoom

Organizer: Phil Ngo phil@...

An RSVP is requested. Click here to RSVP

Description:
OpenEEmeter users are getting together quarterly in a series of recurring meetups to share ideas, make new partnerships, participate in workshops, and be inspired by guest speakers. Users new and old are invited to participate in this event.

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