Solar power Monitoring systems
To start with, kindly bare beside me. This is certainly my first Instructable.
In Summer 2015 we got our 1kW solar panel system put in. It is an on-grid system, so excessive energy sources are send back into the public network. We began the method aided by the neighborhood energy supplier Meralco getting subscribed for “net-metering”. “Net-metering” means that we get paid for power that individuals deliver into the general public system. But we stopped in the middle of the procedure, given that it was exhausting, difficult while the additional requirements (additional breaker, evtl. additional watt meter, updated electrical program by an avowed electrician...) could have expense united states serious cash.
Without having net-metering our company is invoiced for virtually any kWh that is send back into the internet as though we eaten it. The internet meter counting our consumption is a modern electronic style, he shows whether our company is ingesting energy through the internet or if our company is sending on energy. (See image above).
In the purple rectangle the net meter says either getting (energy provider receives energy from us) or Delivered (we obtain energy from the vitality supplier). But the counter increases in both circumstances.
Once we only have a small 1kW system and we also have reached home during the day we chose to only adjust our energy usage in order for we cannot rebel an excessive amount of energy in to the community network. But tips determine if the solar power system is creating more energy than our company is eating? The provider associated with the micro inverters provides a monitoring system. However the price is 10% of everything we taken care of the entire system. Too much! And on top it is a proprietary system, making use of power line communication nevertheless the protocol is certainly not available (among things we hate these days!). To monitor we have been limited by make use of our web browser and acquire the data from organizations web host, in which they shop all the details they get from our system. Therefore I began searching online for an alternative way to monitor our power usage and manufacturing. The best site I found is: OPENENERGYMONITOR.
Everything used to do regarding the monitor system part I could just do aided by the information, resource codes and equipment explanations I found on the website. And when i obtained stuck, their forum is very ideal for research and also to get answers.
I made a decision to build up my personal system in place of purchasing a pre-built system from their particular shop. The monitoring system may be split into 3 parts:
- An Arduino based measurement system
- The necessary detectors
- A Linux based web server
- an Android application to visualize the information.
This great little and inexpensive bit of electric features an 8bit Atmel AVR ATmega32U4 microcontroller to accomplish real-time dimension and a Linux system in line with the Atheros AR9331. The Atheros works a Linux distribution considering OpenWrt known as OpenWrt-Yun. The board has integrated Ethernet and WiFi assistance and a SD card slot. Ideal for IoT solutions. Definitely the net host has limited performance, but for my demands its adequate. The integral Ethernet and WiFi gives the connection required together with SD card supplies the storage space to save lots of the recorded data in a database.