Tuesday 26 June 2012 22:58
As part of the home solar PV and hot water project we are now using an IOIO board with an android tablet to process the sensor data and upload to our online reporting website.
The code below is used to get the sensor data from the Microchip...
Thursday 31 May 2012 22:45
After several problems with slate suppliers, the builder who is replacing the front roof was able to get nearly all the slates installed by yesterday and we then fitted the solar hot water panel frame and pipework onto the new roof. The panel...
Saturday 26 May 2012 17:15
Following from Arduino based Solar PV and Hot water monitoring and logging posts the various hardware and parts of the software have been installed into the PV control cupboard and the new logging hardware and software is uploading data to one...
Sunday 13 May 2012 23:06
Following from Arduino based Solar PV and Hot water monitoring and logging post the various hardware and parts of the software have been installed, built and written.
After two busy weekends working on the project the Arudino board is now sending...
Sunday 13 May 2012 22:11
As part of the solar hot water system (view other blog posts) we have been installing onto our home we wanted to be able to keep track of the time the solar water pump is running. To monitor the pump we decided to use a simple mains power...
Sunday 13 May 2012 22:02
As part of the solar hot water system (view other blog posts) we have been installing onto our home we wanted to be able to keep track of the mains electric being used by the house. Based on the open source OpenEnergyMontor website we developed...
Sunday 13 May 2012 21:43
Next stage of the solar hot water install, fitting a new dual coil hot water cylinder.
The new cylinder was 150mm taller and 70mm wider than the old hot water cylinder which was installed before which required all the existing pipes to be moved...
Thursday 03 May 2012 20:29
Following on from my post Arduino based Solar PV and Hot water monitoring and logging we have designed and created the new PCB (printed circuit boards) for the MCP9801 temperature sensors and also a PCB to hold a mains relay for switching the...
Wednesday 02 May 2012 15:29
Following on from my post about the Arduino based Solar PV and Hot water monitoring the solar hot water kit has arrived from Navitron.
The photos below show the initial plumbing stages for installing the system. We are still waiting for quotes...
Sunday 29 April 2012 16:48
We are upgrading our DIY PV off grid system with extra panels and also a solar hot water system using a kit from http://navitron.org.uk/ with a 20 tube 58mm double wall evacuated tube solar collector on the roof and a new water cylinder and...
Tuesday 02 June 2009 22:02
Putting it all together
Built the first of four panels today and got it installed on the roof. I am still waiting for the 12v 15amp cable roll for the other three panels, which I ordered over a week ago and the supplier isn't answering...
Monday 01 June 2009 22:50
After purchasing a flux pen from Maplin, we started the long job of tinning all the cells, front and back and the fitting the tabbing wire between the cells to join 36 together for each solar panel.
The photo below shows...
Thursday 28 May 2009 12:46
Charging System Upgrades
The existing charging system used a single battery and this was connected via the charge converter to the inverter and a 12v relay which switched the mains supply between the solar inverter power and normal mains...
Sunday 24 May 2009 17:41
Using 6mm thick flat aluminum bar, we made four brackets which were attached to the chimneys either side of the house and between these, two lengths of 25mm x 4.2m square aluminum bar were fitted to act as supports for the solar panels.