This document describes a smart monitoring system for solar panel systems using Internet of Things (IoT) technology. It discusses: - The need to monitor solar panel electricity output and efficiency to optimize renewable energy use. - A methodology using current sensors and an Android app to remotely monitor current and power output from solar panels and a grid-tie inverter in real-time. - Test results found the sensor measurements were accurate to within 1.88% for a power line and 5.62% for a grid-tie inverter cable. - The successful IoT monitoring system provides a low-cost solution to help optimize solar power use and savings by automatically using grid power when solar output is insufficient to

1. Smart Monitoring of Solar Panel System
in Saving of the Electrical Power with
Internet of Things
By:
Brian Raafiu
“Convergence of Basic Science, Toward the World’s
Sustainability Challenges”
Instrumentation Process in Solar
Panel System with Internet of
Things (IoT)
Instrumentation and Measurement

2. OUTLINE STRUCTURE
• Background &
Motivation
• Methodology
• Result and DiscusionInstrumentation and Measurement with Internet of Things

3. Background and Motivation
INDONESIA ENERGY MIX 2025
SCENARIO of OPTIMIZATION
PLTMH 0.216%
Biofuel 1.335%
Solar Energy 0.020%
Wind power0.028%
Fuel cell 0.000%
Biomass 0.766%
Nuclear 1.993%
Coal 32.7%
Hydro power
2.4%
Geothermal 3.8%
Other 4.4%
Oil
26,2%
Gas
30.6%
Opportunities:
Monitoring issues of electricity variable is often ignored !
Monitoring concept of physics variable influences the efficiency of solar
panel in saving of the electrical power. Monitoring of physics variable of
the electricity energy is optimized by current sensor AC712, with concept of
“Internet of Things” on android smartphone
Renewable Renewable EnergyRenewable Energy Renewable Renewable EnergyRenewable Energy Sources and Potentials
Source:
MEMR Indonesia, 2010
Instrumentation and Measurement

4. Methodology
Explained :
The capability to monitoring of the system depends on current sensor. The current sensor has a
function to replace the manual measuring device. That is very useful to monitoring of the system
depends on current sensor. The current sensor has a function to replace the manual measuring device
that is very useful to monitor in real time with android based of internet communication for the value
electricity current input and output of solar panel. Instrumentation and Measurement

5. Results and Discussion
Explained :
Solar panel system is used to the main sources of electricity, that will be
used for loud with using inverter device (grid tie inverter). The current
sensor AC712 has a function to replace the manual measuring device.
Instrumentation and Measurement with Internet of Things (IoT)

6. Results and Discussion
This test uses current sensor 1 on a cable line PLN and
testing conducted 5 per second with a time of data
retrieval
Reading of the current sensor 1 on apk users
compared with the reading of the Tang Ampere
shown on table
Tang
Ampere
Current
in IoT
Error Error
(100%)
0.72 A 0.72 A 0 0%
0.73 A 0.75 A 0.02 2.6%
0.74 A 0.72 A 0.02 2.7%
0.75 A 0.72 A 0.03 4.1%
0.75 A 0.75 A 0 0%
Average Error 1.88%
0% + 2.6% + 2.7% + 4.1% + 0%
5
= 1.88%
Sensor
1
Instrumentation and Measurement

7. Results and Discussion
This test uses current sensor 1 on a cable line Grid Tie
Inverter and testing conducted 5 per second with a time of
data retrieval
Reading of the current sensor 2 on apk users
compared with the reading of the Tang Ampere
shown on table
Tang
Ampere
Current
in IoT
Error Error
(100%)
0.20 A 0.20 A 0 0%
0.20 A 0.21 A 0.01 4.7%
0.20 A 0.18 A 0.02 11.1%
0.26 A 0.24 A 0.02 8.3%
0.24 A 0.25 A 0.01 4%
Average Error 5.62%
0% + 4.7% + 11.1% + 8.3% + 4%
5
= 5.62%
Sensor
2
Instrumentation and Measurement

8. Results and Discussions
Scematics Internet of things
Explained :
Internet of things make us to monitoring
or controlling obout all if you can
measure. Firebase is which one of the free
of data base developed by google. All
obout data measure you can save in
database and share with your client
(smartphone ? Personal computer ? Or
any others) Of course can do it you just
have the internet connection.
Instrumentation and Measurement with Internet of Things

9. Conclusions
Interface with Android Monitoring of
Solar Panel System
• The successfull of the current sensor
ACS712 in this system will make
electricity sources of PLN that
automatically supply the electrical
energy if the solar panel does not
meet the available load.
• System of the Internet of things is
able to monitor the current and
power generated by the Grid Tie
inverter with 1.88% error
percentage on line cable PLN, and
5.62% on the cable Grid Tie Inverter.
• The successful of this smart
monitoring system with Internet of
Things technology succeed in this
research will become a solution with
more economical price.
Instrumentation and Measurement with Internet of Things (IoT)

10. Thank You for Your Attention
Brian Raafiu
Department of Instrumentation
Institut Teknologi Sepuluh Nopember, Surabaya
Convergence of Basic Science, Toward the World’s
Sustainability Challenges 10
Instrumentation and Measurement with Internet of Things

11. Results and Discussion
Saving of the Electrical Power
• 𝑅𝑒𝑎𝑙 𝑃𝑜𝑤𝑒𝑟 (𝑊𝑎𝑡𝑡) −
𝑃𝑜𝑤𝑒𝑟 𝐺𝑇𝐼
𝑅𝑒𝑎𝑙 𝑃𝑜𝑤𝑒𝑟 (𝑊)
∗ 100
1. 4.8 𝑊 −
2.3𝑊
4.8𝑾
∗ 100% = 52%
2. 14.8𝑊 −
9.3𝑊
14.8 𝑊
∗ 100% = 37%
3. 102.6𝑊 −
73.4𝑊
102.6𝑾
∗ 100% = 28.4%
4. 203.1𝑊 −
144𝑊
203.1𝑾
∗ 100% = 28.4%
•
52%+%+3.7%+28.4%+29%
4
= 36.6%
Picture of Results
1 2
3 4
Explained :
Inverter grid tie will be synchronized with a
PLN source as the alternative electricity source
for saving of the electrical power.
Instrumentation and Measurement