Design and Development of Net Metering System
Many industries generate electricity by their own to fulfil their load requirements. If the generation is less than the desired load, then the remaining is provided by WAPDA. On the other hand, if the generation exceed the desired load, the surplus is sold out to the WAPDA. This is done using a Net
Project Title
Design and Development of Net Metering System
Project Area of Specialization
Project Summary
| Many industries generate electricity by their own to fulfil their load requirements. If the generation is less than the desired load, then the remaining is provided by WAPDA. On the other hand, if the generation exceed the desired load, the surplus is sold out to the WAPDA. This is done using a Net Metering device. Net metering is a mechanism that allows electricity customers with their own generation capability to be financially compensated for their investment in the energy they produce. A similar opportunity can be provided to the domestic users that generate electricity by their own, for example using voltaic panel etc. This encourages private sector to invest in electricity generation and hence the government can spare its capital to be utilized elsewhere. The main objective of this project is to design and develop a bi-directional metering (Net Metering) device. The proposed bidirectional net meter consists of voltage and current measurement circuit which measures the instantaneous voltage and current respectively. It consists of Arduino UNO which acts as the processing unit and LCD display to display the net energy at regular intervals. Experimental results show the accuracy in calculating the net energy of the system. Furthermore, this project aims to test this device in a system where the national and local generators can be operated synchronously. If the load demand exceeds the local generation capacity, the deficiency shall be compensated using national grid and similarly if the local generation exceeds the load surplus shall be added to national grid. |
Many industries generate electricity by their own to fulfil their load requirements. If the generation is less than the desired load, then the remaining is provided by WAPDA. On the other hand, if the generation exceed the desired load, the surplus is sold out to the WAPDA. This is done using a Net Metering device. Net metering is a mechanism that allows electricity customers with their own generation capability to be financially compensated for their investment in the energy they produce. A similar opportunity can be provided to the domestic users that generate electricity by their own, for example using voltaic panel etc. This encourages private sector to invest in electricity generation and hence the government can spare its capital to be utilized elsewhere. The main objective of this project is to design and develop a bi-directional metering (Net Metering) device. The proposed bidirectional net meter consists of voltage and current measurement circuit which measures the instantaneous voltage and current respectively. It consists of Arduino UNO which acts as the processing unit and LCD display to display the net energy at regular intervals. Experimental results show the accuracy in calculating the net energy of the system. Furthermore, this project aims to test this device in a system where the national and local generators can be operated synchronously. If the load demand exceeds the local generation capacity, the deficiency shall be compensated using national grid and similarly if the local generation exceeds the load surplus shall be added to national grid.
Project Objectives
- Design and development of bi-directional metering device
- Design and development of a synchronization module to operate two AC sources simultaneously
- Design and development of a DC/AC inverter in order to provide an opportunity of net metering to users generating electricity from solar energy
- Integration of solar system to net metering system
Project Implementation Method
Net meter is used to measure the net energy between the grid to load and the excess energy from any renewable energy sources that fed to the grid . The proposed system consists of a voltage and current measuring circuit, power supply unit, amplifiers (Op-amp IC 741), regulators (LM 7809) and processing unit. The voltage and current measuring circuit feeds the corresponding instantaneous values of voltage and current as an input to Arduino. Arduino calculates the net energy by using instantaneous values of voltage and current. The net output energy is displayed through LCD which is interfaced with Arduino.
Benefits of the Project
- Contribution to country economy
- Encourages customers to move towards renewable energy
- This encourages private sector to invest in electricity generation and hence the government can spare its capital to be utilized elsewhere.
- Reduced electricity bills.
Technical Details of Final Deliverable
- Design of grid tie inverter
- Design of Bi-directional meter
- Design of Synchronization module
- Integration of solar system to net metering system
Final Deliverable of the Project
Core Industry
Other Industries
Core Technology
Other Technologies
Sustainable Development Goals
Required Resources
| Elapsed time in (days or weeks or month or quarter) since start of the project | Milestone | Deliverable |
|---|---|---|
| Month 1 | Literature review for FYP | To determine methodology and make concepts strong |
| Month 2 | To understand the working of bi directional metering. | Working principle |
| Month 3 | Implementation and testing of bi directional metering device | Design of meter |
| Month 4 | To understand the working of synchronization module | Working/operation |
| Month 5 | Implementation and testing of synchronization module | Design of synchronization module |
| Month 6 | Integration of a complete net metering system with two sources and a variable load | Integration of whole system |
| Month 7 | To understand the working of DC to AC inverter | Working principle |
| Month 8 | Implementation and testing of DC to AC inverter | Design of inverter |
| Month 9 | Integration of a complete net metring system with a PV as local source and a variable load | Complete project |
| Month 10 | Documentation | Project report |
| Month 11 | Thesis write up | Project report |
| Month 12 | Thesis write up | Project report |
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