Cyon Posted August 19, 2020 Posted August 19, 2020 Hi everyone. I'm new to the site, reading a lot and want to learn and help people. I work as IT (Everything in Technology) love electronics and renewable energy. I have build my own backup lights system with my alarm system and solar [checks the 'if' conditions and only then it will switch on the lights when no power] Busy building my own & is in the process to get a Inverter(king 5kva) Gerrie and Energy-Jason 2 Quote
Louisvdw Posted August 19, 2020 Posted August 19, 2020 1 hour ago, Barryv said: I have build my own backup lights system with my alarm system Welcome Barryv This sounds interesting. Is this all software, or did you use some electronics for this? Quote
Cyon Posted August 19, 2020 Author Posted August 19, 2020 Hello Louisvdw I have a Texecom panel and added some relays on to it. Then I edit the output on it with some if conditions. I set the following. 1. is Power off, 2. is Alarm arm, 3 is it after 17h00 or before 8h00 & then with the passive in the room, if there is movement then the lights will stay on for 30 min. It really works but I still need some fine settings. Then with the relays. It connects to a converter from 24 to 12 for the LED strips. the batteries get charged with a PWM(I know it is not so efficient than an MPPT) and 3 solar panels 990watt. I have 4 panels for the inverter but will get next month's extra 2 panels. I want to connect the inverter to my lights and tv and the internet and also for the laptop. I have the batteries and with the inverter and some panels, I can have a backup so long. still learning about this. Gerrie 1 Quote
Louisvdw Posted August 19, 2020 Posted August 19, 2020 For smaller panel setup and if you are using 12V/24V the PWM is actually not that bad. If you look at 48V system or if you want to do panels in series then MPPT is the way to go. francois 1 Quote
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