casa-corrently

Allows to work with a smartmeters (Electricity only) within Node RED flows. If you do not have a Smart Meter you might get it here from STROMDAO (Germany only).

!npm    

NOTE: new name

This package gets renamed into casa-corrently - Previous: node-red-contrib-discovergy-meter

Installation

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``shell
cd ~/.node-red/
npm install --save node-red-contrib-discovergy-meter
`

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Install node-red-contrib-discovergy-meter as NODE package.

QuickStart

This QuickStart allows you to start node-red with one the sample meters to get quickly familiar with this Node (module).

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- Node-RED installed global (e.q you could start it from command line using node-red)
- Cloned version of GIT Repository https://github.com/energychain/node-red-contrib-discovergy-meter.git

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Reference: https://casa.corrently.de/books/demo-z%C3%A4hler/page/messkonzept-1-%28volleinspeisung%29

`shell
npm install node-red-dashboard
npm run demo-messkonzept1
`

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Reference: https://casa.corrently.de/books/demo-z%C3%A4hler/page/messkonzept-2-%28%C3%BCberschusseinspeisung%29

`shell
npm install node-red-dashboard
npm run demo-messkonzept2
`

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- Editor: http://localhost:1880/
- Dashboard (UI): http://localhost:1880/ui

###

Usage

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On first time adding a Discovery Meter to a flow the list of available meters will be empty.
- Add Discovergy login information to configuration node
- Deploy changes to flow
- Re-Open Configuration of Discovergy Meter

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You might overwrite time and value of first reading from the node configuration.

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If triggered (maybe periodic via an inject) this node provides a json Object as msg.payload.

`javascript
msg.payload = {
time: , // time of reading per Discovergy API
latest: {
power: , // Power in Watt * 10^-3
power1: ,// Power in Watt * 10^-3 of Phase 1
power2: ,// Power in Watt * 10^-3 of Phase 2
power3: ,// Power in Watt * 10^-3 of Phase 3
energy: ,// Actual Meter Reading in Watthours * 10^-7 (consumption . OBIS Code 1.8.0)
energyOut: ,// Actual Meter Reading in Watthours * 10^-7 (production . OBIS Code 2.8.0)
baseCosts: , // Accumulated base fee (Grundgebühr) since first measument time (eq. installation - might be overwritten)
energyCost: , // Accumulated energy costs (Arbeitspreis) since first measument time (eq. installation - might be overwritten)
energyRevenue: , // Revenue from feeding Energy into the grid
incomeSaldo: // Pre Calculated : energyRevenue - (baseCosts + energyCost)
}
}
`

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If msg.topic is set to statistics additional statistic information will be provided. Beside of power,power1,power2,power3 the object gets formated same as in msg.payload.latest above.

NOTE: Retrieving statistics requires a significant higher amount of API calls. Consider to use it less than once per minute.

`javascript
msg.payload = {
time: // time of reading per Discovergy API
latest: { ... }, // latest values
last24h: { ... }, // From latest reading 24 hours backward
today: { ... }, // Values from today
yesterday: { ... }, // Values from yesterday
monthToDay: { ... }, // Values from this month
lastMonth: { ... }, // Values from last month
yearToDay: { ... }, // Values from this year
last365d: { ... } // Values from last 365 days
}
`

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You might add multiple Discovergy Meters in sequence. In this case a property aggregation will contain aggregated values of all meters.


`javascript
msg.payload = {
time: // time of reading per Discovergy API
latest: { ... }, // latest values
aggregation: { ... } // Aggregated values of all meters in sequence
}
`


Sample flows

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Dashboard

Standalone usage

It is possible to run this node without Node-RED. It comes shipped with a express APP.

`shell
git clone https://github.com/energychain/node-red-contrib-discovergy-meter.git
cd node-red-contrib-discovergy-meter.git
npm install
npm start ./sample_config_messkonzept2.json
``

!Prosumer Display

Online Demo (via Heroku):
https://casa-corrently-demo.herokuapp.com/index.html

By default the Web UI will be visible at http://localhost:3000/index.html

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Heroku:
https://heroku.com/deploy?template=https://github.com/energychain/node-red-contrib-discovergy-meter

Funding

This module is part of the Corrently Ecosystem which looks for funding in Germany: https://www.stromdao.de/crowdfunding/info
!STROMDAO - Corrently Crowdfunding

Further reading

Further Documentation is available as Casa Corrently Chapter at: https://casa.corrently.de/books/nutzung-von-node-red/chapter/gr%C3%BCnstromz%C3%A4hler-%28discovergy-meter%29

Maintainer / Imprint

This module is not an official contribution by Discovergy GmbH.

STROMDAO GmbH

Gerhard Weiser Ring 29

69256 Mauer

Germany



+49 6226 968 009 0



kontakt@stromdao.com



Handelsregister: HRB 728691 (Amtsgericht Mannheim)

LICENSE

Apache-2.0