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Author Archives: stephen
And I was worried about the solar production when the fog rolled in
800W from a 2.8kW array in that weather
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1 Comment
PV install done!
The PV installation is finally completed and the battery have had their first taste of those juicy solar electrons. The tech details: 12 x Yingli 235W modules for 2.82kW of installed PV wired in 4 strings of 3 panels. 100Vmp … Continue reading
Posted in Off grid power, Solar power
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Version 0.1 Battery Monitor
Basic features working well: Measuring SG and temp and calculating the SoC. Displaying on LCD and working over SMS.
Posted in Off grid power, Solar power
Tagged battery monitor, Digital SG meter, specific graphic meter
3 Comments
SG data logger, first steps
The helpful chaps at JSA Photonics sent over a replacement sensor and it’s working rather nicely. Have only run real tests using a single SG value as my battery doesn’t cycle much yet. Got the dimensions of the cell cap … Continue reading
Posted in Off grid power, Solar power
3 Comments
SMA Sunny Island installed
Sunny Island 5048 hooked up to the generator and the 800Ah Forklift battery from Sunlight.gr.
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SMS generator control with Arduino
Arduino GPRS shield Continue reading
Posted in Off grid power, water
15 Comments
Exhaust silencer version 2.0
Going to make the expansion chamber smaller, so that it’s deeper underground, then funnel the gases through a maze made out of blocks filled with sand. There’s a big hole filled with builders sand that forms the center of this … Continue reading
Posted in Off grid power
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