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Pre-built heatpump dashboards
I've been experimenting with the idea of a pre-built heatpump dashboard - a bit like the myelectric module for home energy monitoring.The initial concept is up on emoncms.org under the Extras >...
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An open source hourly zero carbon energy system model
I've been doing some work recently with Philip James from the Centre for Alternative Technology on developing a set of open source zero carbon energy system models based on ZeroCarbonBritain that...
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Introducing RFM69Pi V3 Raspberry Pi Expansion Board
RFM69Pi on Raspberry Pi B+, also compatible with Raspberry Pi Model B and Pi2RFM69Pi Top ViewRFM69Pi Bottom ViewThe RFM69Pi is a minor update to the popular RFM12Pi Raspberry Pi Expansion board. It...
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RFM69CW Power Consumption
Following on from my post on RFM12B power consumption here's the same measurements for the RFM69CW (see RFM69CW intro blog post).Current consumption was measured in the same way as explained in the...
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Real World emonTH Battery Life
The battery on my home emonTH Temperature & Humidity Node has just died for the second time in 14 months. Each set of batteries lasted exactly 221 days (7 months and 9 days)! The 2 x AA alkaline...
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Energy Display Options...
Sadly as of last week we have run out of emonGLCD kits in the shop and have decided to discontinue the emonGLCD for the moment. Preparing the through-hole kits is very labour intensive and the time and...
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Introducing emonPi: Raspberry Pi based energy monitor
emonPi Raspberry Pi based energy monitor KickstarterIt's an exciting time for us; this week (on the 1st April, unfortunate timing!) we launched a Kickstarter crowd funding campaign for our emonPi...
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emonPi Vs emonTx V3 Comparison
Here's a quick comparison table comparing the emonPi (currently active on Kickstarter!) to our existing emonTx V3 energy monitoring unit:emonPiemonTx V3It is no secret that there is much similarity...
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Introducing emonTH V1.5
The emonTH Temperature and Humidity wireless sensing room node is back in stock in the shop today with an updated version to...
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Investigating the embodied energy of the EmonPi & OSCEDays London 12-14th June.
On the 12th – 14th of June there is an event happening called Open Source Circular Economy Days in many cities around the world, including in London https://oscedays.org/london/ which we will be...
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EmonTx v2.5 and throughhole kits
We've had quite a few people ask about the throughhole emontx v2 and emonGLCD's designs since we've moved away from stocking them in the shop and developed the pre assembled units. I've also had...
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Modelling hourly demand and supply for renewable powered domestic...
Earlier this year I did some work with Philip James from the Centre for Alternative Technology and a researcher on the ZeroCarbonBritain project on creating an open source online zero carbon energy...
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Hourly energy model example 1: Variable Supply
This first example in the hourly energy modelling tool model's the hourly output of a given installed capacity of wind, wave, tidal or solar. The model really isn’t doing much its just loading the...
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Hourly energy model example 2: Variable supply and flat demand (python code...
The second example in the hourly energy modelling tool models the degree of supply/demand matching between a variable renewable supply consisting of a single renewable energy generation type and a flat...
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Hourly energy model example 3: Variable supply and traditional electricity...
The ZeroCarbonBritain dataset includes 10 years of hourly traditional electricity demand data for the UK. The previous example compared renewable supply data with a flat demand profile, this example...
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Hourly energy model example 4: Complementarity of different renewable...
We hear a lot that a renewable energy system benefits from having a mix of generating technologies. Combining wind and solar for example is said to provide a higher supply/demand matching than relying...
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Optical Utility Meter LED Pulse Sensor
Optical Utility Meter LED Pulse Sensor attached to meter via removable sticky padWe have just taken delivery of a batch of custom made Optical Utility Meter LED Pulse Sensor units. We're very excited...
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Hourly energy model example 5: Simple space heating model with heatpump's...
The 5th example in the online zero carbon energy modelling tool is where it starts to get more interesting: modelling the supply/demand matching between a variable renewable supply and space heating...
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OpenEMC - An emonTH mod for woodworkers
It's fantastic when we get top hear about our energy monitors being used for applications we have never have thought of. Here is one such example:SolarMill Writes:We've just published our first open...
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Using a tablet as a wall mount energy display
We've been discussing for a little while using re-purposed tablets for energy display's rather than trying to develop our own pre-assembled version of the EmonGLCD (we're planning on keeping the...
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