Hybrid energy system for home appliances using solar power and grid.
In this project the purpose that we achieve is that automatic shifting of loads from grid to solar or solar to grid we also have a backup that is battery we can use it in absense of solar or grid we can charge the battery from solar that is our preference and if solar is not available and batt
2025-06-28 16:32:59 - Adil Khan
Hybrid energy system for home appliances using solar power and grid.
Project Area of Specialization Electrical/Electronic EngineeringProject SummaryIn this project the purpose that we achieve is that automatic shifting of loads from grid to solar or solar to grid we also have a backup that is battery we can use it in absense of solar or grid we can charge the battery from solar that is our preference and if solar is not available and battery will be discharged that we also have a function that we charge the battery from grid.
we have four loads. Solar PV have capacity to operate two loads, and next two loads are on grid. If any one or two loads are active our system automatically shifts loads on solar PV. If load exceeded the capacity of solar PV then it shifted to grid automatically.
Project Objectives- Efficient load management of household appliances.
- Efficient use of renewable energy resources.
- Cost reduction.
In this project we used polycrystalline solar panel we prefer it for project because it cost is less as compared to mono-crystalline.
Set the preference of microcontroller fot the sources in the following order.
- Solar
- Grid
- Battery
We can switch from one source to another accroding to load requriment.First two laods are working on solar and next two loads are working on grid when one of the two loads on solar is off or two loads switch off than automatically the load on grid that is two loads is shifted to solar.
Benefits of the ProjectCustomer benefits
- Satisfy electricity demands.
- Stabilize costs of electricity bills.
- Improve lifestyle and productivity.
Utility benefits
- Lower cost of service
- Improve customer service.
Social benefits
- Reduce environmental degradation.
- Proptect global environment.
There are various components that we used in this project.
TECHNICAL SPECIFICTIONS
- Solar panel (150W)
- battery (100Ah)
- microcontroller(PIC 18f452)
- relays
- invertor
- charge controller
- volatge regulator(LM 7805)
- filtering capacitor
- current sensor(ACS712)
- step down transformers.
- real time clock (DS 1202)
- terminal block
- Resistors
- Diodes
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 38468 | |||
| Pic 16F452 | Equipment | 3 | 400 | 1200 |
| 16x2 LCD display | Equipment | 3 | 200 | 600 |
| 20MHz Crystal Oscillator | Equipment | 5 | 6 | 30 |
| step down transformer | Equipment | 1 | 300 | 300 |
| solar panel 150W | Equipment | 2 | 6000 | 12000 |
| solar charge controller 10A | Equipment | 1 | 1000 | 1000 |
| 15A relay | Equipment | 6 | 250 | 1500 |
| DS1202 RTC | Equipment | 1 | 250 | 250 |
| LM7805 | Equipment | 4 | 7 | 28 |
| terminal blocks | Equipment | 5 | 10 | 50 |
| PCB | Equipment | 2 | 475 | 950 |
| Battery Lead Acid 100ah | Equipment | 1 | 9000 | 9000 |
| ACS712 current sensor | Equipment | 2 | 280 | 560 |
| resistor | Equipment | 25 | 2 | 50 |
| Capacitor | Equipment | 10 | 25 | 250 |
| Diode | Equipment | 10 | 10 | 100 |
| Led Bulb | Equipment | 2 | 150 | 300 |
| Motor (load) | Equipment | 2 | 500 | 1000 |
| Soldering Iron | Equipment | 1 | 350 | 350 |
| Soldering wire | Equipment | 1 | 250 | 250 |
| Connecting Wires | Equipment | 1 | 200 | 200 |
| Report Printing Expenses | Miscellaneous | 1 | 3000 | 3000 |
| Travelling Expenses | Miscellaneous | 1 | 2500 | 2500 |
| Inverter 12v to 220v | Equipment | 1 | 3000 | 3000 |