Design & Implementation Project

Solar-Powered
Backup System
Monitor

A static frontend demonstration of how HTML, CSS and JavaScript can represent, simulate and communicate a real-world renewable energy infrastructure.

4.2kW

Solar Input

87%

Battery Level

2.8kW

Load Output

How the System Works

A solar-powered backup system captures sunlight, converts it to usable electricity, stores excess energy in batteries, and delivers reliable power when the grid fails or solar input is insufficient.

Solar Panels

Photovoltaic cells absorb sunlight and convert it into direct current (DC) electricity through the photovoltaic effect.

Charge Controller

Regulates voltage and current from the solar panels to safely charge the battery bank, preventing overcharge and damage.

Battery Bank

Stores excess DC electricity for use during low sunlight conditions or grid failures, providing stable backup power.

Inverter

Converts stored DC power from the battery into alternating current (AC) compatible with household appliances and loads.

Load / Appliances

Electrical appliances and devices powered by the system receive clean, regulated AC power from the inverter output.

Component Breakdown

Each component plays a critical role in ensuring the system operates efficiently, safely, and reliably across all conditions.

Solar Panel Array

Active
Rated Power4 × 250W = 1000W
TechnologyMonocrystalline Si
Efficiency19.4%
Voltage (Voc)37.2 V

The panel array faces south at a 20° tilt for optimal year-round irradiance capture. Bypass diodes prevent reverse current flow from shaded cells.

MPPT Charge Controller

Regulating
TypeMPPT 40A
Input Voltage12–150 V
Efficiency98%
ProtectionOvercharge / Short

Maximum Power Point Tracking technology extracts up to 30% more energy than PWM controllers by continuously adjusting impedance matching.

Battery Bank

Charging
ChemistryLiFePO4
Capacity200 Ah / 24 V
Cycle Life3,000+ cycles
DoD80%

Lithium Iron Phosphate chemistry provides superior thermal stability, long service life and consistent discharge voltage compared to lead-acid alternatives.

Pure Sine Inverter

Online
Output2000W / 230V AC
WaveformPure Sine Wave
Frequency50 Hz
Efficiency93%

Pure sine wave output ensures compatibility with sensitive electronics including medical equipment, variable-speed motors, and audio systems.

Automatic Transfer Switch

Standby
Switching Time< 20 ms
Rating63A / 230V
PrioritySolar → Grid
TypeOpen Transition

Detects grid failure within milliseconds and seamlessly switches to battery-backed inverter power, providing near-uninterruptible supply to critical loads.

System Monitor

Logging
InterfaceWeb Dashboard
Data PointsVoltage, Current, SoC
LoggingReal-time
AlertsThreshold-based

This very interface — a frontend-only dashboard demonstrating how JavaScript can represent system telemetry, energy flow and usage history interactively.

System Simulation

Adjust conditions and observe how the solar backup system responds. All values update dynamically using JavaScript.

Control Panel

Sunlight intensity hitting the panels
Total power consumed by appliances
Ambient temperature (affects panel output)
Starting state of charge for simulation
Grid Available
Cloud Cover
Solar Array
MPPT Controller
Battery Bank
87%
Inverter
Load
System Mode
Net Power Balance
Est. Backup Duration
Panel Efficiency

System Performance

Visualizing expected daily solar generation, load consumption patterns, and battery state of charge throughout a typical day.

Daily Generation ~5.2 kWh
Peak Generation 4.2 kW at noon
Battery Autonomy ~6.5 hours
System Uptime 99.3%