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Improved my solar application specific dashboard for tablet energy display's
With my Refurbished Samsung Galexy Tab 3 energy display up and running I've made a few changes to the solarPV application specific dashboard to make it work better. Thanks to Steve for many of the...
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Hourly energy model example 6: Electric vehicles and a renewable energy supply
Continuing the blog series on building a hourly zero carbon energy model based on the ZeroCarbonBritain dataset the 6th example model explores another another key solution used in the ZeroCarbonBritain...
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Open source hourly zero carbon energy model, combining traditional electric,...
The last 6 zero carbon energy model examples (linked below) have explored the core parts of a household energy model looking at supply and demand including the electrification of space heating demand...
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Open Source Circular Economy OSCEdays London
Three weeks ago, time runs fast! I attended the open source circular economy event OSCEdays in London. It was a fantastic event with a lot of energy and ideas exploring how the circular economy could...
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What is the embodied energy of a microcontroller?
Continuing with the investigation into the embodied energy that it takes to make an energy monitor, I thought I would explore in a little more detail the embodied energy of the microcontroller which is...
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Adding a RTC to the emonPi
The emonPi updates its internal linux time from NTP when connected to the internet. However if the emonPi is to be used on an offline network or for an application when accurate timestamp is essential...
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New MyElectric Emoncms app, realtime power graph and energy totals
The MyElectric app has long been needing some work so that it both provides more useful information and also reports the daily kwh data correctly for different timezones and when the app is used as an...
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Understanding zero carbon energy systems: Energy storage (part 1)
The last zero carbon energy model example in the series investigating the matching between different energy demands and a variable renewable supply reached 89% supply/demand matching with a mixture of...
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3CH WiFi Relay Control Board
We have recently started stocking in the shop a Three Channel WiFi Relay / Thermostat Board designed by our friend Martin Harizanov.The board has been well designed to physically separate high voltage...
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Optical pulse counting with the EmonTH
p { margin-bottom: 0.25cm; line-height: 120%; }In addition to temperature and humidity sensing the EmonTH has a digital input (with interrupt) that can be used for pulse counting. This can be used for...
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At Watt Cost? A review of the emonPi Raspberry Pi based energy monitor
At Watt Cost ?A review of the emonPi, a Raspberry Pi based energy monitoring system developed by OpenEnergyMonitor, by Lionel Smith : Measurement is the first step that leads to control and eventually...
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Pulse counting with the RFM69PI and RaspberryPi EmonBase basestation
The latest version of the RFMPi Adapter board made much of the spare digital and analog IO available for use directly on the RFMPi adapter board. D3 is one of the digital inputs available and can have...
View ArticleHow to setup a WIFI Hotspot on an EmonPi
This guide details how to setup a WIFI Hotspot using the Edimax USB WIFI adapter on an EmonPi or EmonBase to make it possible to connect directly to an EmonPi from a tablet or computer without the need...
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China Shenzhen Electronic Market & HopeRF Factory Visit
For the past two weeks I have been travelling out to the South of China from the UK via overland travel. I have always wanted to visit China but could not bring myself to justify the carbon impact of...
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emonPi, NodeRed and MQTT
Using the emonPi in it's default configuration works great to post data to Emoncms for logging and visualisation. However there may be times when you want some more flexibility and or ability to...
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Ambient Wind Energy Indicator using Node-RED and Blink(1) USB
As we move to a low carbon electric grid with large amount of input from renewable sources we will need to match our consumption of energy to generation. The wind will not always blow and the sun...
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Interpreting Emoncms Dashboards
The emonPi / emonTx standard install is designed to monitor whole house power consumption. An excellent learning exercise that we recommend everyone undertake soon after installing a whole house energy...
View ArticleOpenEnergyMonitor November 2015 - Overview Presentation
Here's a few slides giving an overview of the OpenEnergyMonitor project as it stands currently in November 2015. It features some of the work we have been doing looking at the embodied energy involved...
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Node-RED Emoncms Node
I have recently been experimented using Node-RED for a number of tasks. Thanks to the work of others a Node-RED flow node already existed for Emoncms making it very easy to post data to Emoncms. For my...
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UK Grid Carbon Intensity API
Following on from my blog post creating an ambient indicator to indicate wind turbine renewable electricity generation we have extended the Emoncms UK electric grid statistic aggregation to calculate...
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