As you all probably know, a lot of the UK has been working from home since late March 2020 because of the Covid19 outbreak. Normally this would be a mixed couple of months weather wise as we go through April showers to bring May flowers but this year has been …
As mentioned a few weeks back, I had decided to get more solar panels installed on a Northwest facing roof. The plan was to get 5.4kWp installed which would generate around the same amount of units per year as my 4kWp Southeast facing array. As part of the process of …
FOREWORDAs with all the posts on this site, this post is purely my opinion and a log of the things I have done. This post is in no way meant as investment advice or an endorsement for the shares/funds/trusts mentioned. Always do your own research and/or seek independent financial advice …
FOREWORDSome of you will read this article and ask why I didn’t go vegan because of the impact consuming meat and dairy products has on the environment. I’m quite a fussy eater and don’t think I could go vegan yet. I am however trying to cut down my meat consumption …
Over the last few months since I re-wrote my home monitoring application and started logging data to Splunk (in addition to the existing two locations) there’s been an update to Splunk that seemed to fix an issue I had with updating dashboard panels in near realtime. This is a huge …
Last Friday we have our Tesla Powerwall installed and at the same time the electricians installed my Rolec car charger. I was most excited about the Powerwall as I’ll hardly use the car charger and the Powerwall has an API which means I can add extra data to my home …
As mentioned in my previous post (see https://blog.v-s-f.co.uk/2017/04/home-monitoring-upgrade/), the first task I have is to migrate from HSQLDB to MySQL. Because the system logs data every minute while I have power in the house and I want to minimise downtime when I actually have a fully working upgrade, I’ve experimented …
I’ve been monitoring stats from my meter, weather and hotwater tank for over two years now (see https://blog.v-s-f.co.uk/2015/04/home-monitoring-home-made-reborn/) and the application now needs an upgrade. I now want to log more data from the weather station (temperature and humidity). This should be as simple as adding two new columns to …
I’d previously shared on my blog the home made monitoring application I’d built to aggregate pv, meter and weather data – see: https://blog.v-s-f.co.uk/2014/03/home-monitoring-home-made-overview/. Over the last few months I re-wrote the app to not only output the data to PVOutput every minute, but store that same data into an HSQLDB …
I’ve had my solar panels since October 2011 (details about my system can be found on this post) and I’m always telling people how good they are. When I tell people about my solar panels, I get one question – “how much do they generate” and the second is a …
Just found this website today from a post on the Guardian website which enables members of the public to crowd fund solar panels to be installed on School rooves! Nearest school to me is Maple Tree Lower, who look like they need a little help. But great idea! http://www.solarschools.org.uk/mapletree/
And finally the results of all work! There isn’t any change on the first graph which shows generation and import (yes, it should be consumption, but I have yet to work out the right values for the addstatus service). The next graph is the result of all the hard work. …
There are only 6 java classes, 1 properties file and the flow (XML) file making up the Mule application. Some of them can be better written and should be unit tested, but they work and do the job :-)) ConsumptionData.java DefaultReadingData.java HotWaterData.java ConsumptionInputDataTransformer.java ExtraDataOutputTransformer.java HotWaterInputDataTransformer.java pvoutputaggregator.properties pvoutputaggregator.mflow Next Part Part …
Aggregation of the data before uploading to PVOutput Why do we need to aggregate the data? The data collected by the meter reading Arduino will be sent to PVOutput on the addstatus service using the standard parameters. The hot water Arduino will be sending the data on the extended parameters …
Reading when the hot water is heated by solar from the Wattson plug Since the Wattson plug and the hot water tank are in close proximity, we can reuse the Arduino that reads the temperate to determine when the Wattson plug is on and heating the water. Another light voltage …
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