Grid-Tied vs. Off-Grid Solar Calculator

Compare grid-tied and off-grid solar systems to determine which best suits your needs. Calculate costs, benefits, and requirements for both system types.

Your average daily energy usage
Your current electricity rate
Number of days of backup power required
Average peak sun hours in your location
How reliable is your grid power?
Is net metering available in your area?

System Comparison

Feature Grid-Tied Off-Grid
Initial Cost Lower Higher
Battery Storage Optional Required
Grid Dependence Yes No
Net Metering Available Not Applicable
Maintenance Lower Higher

Important Considerations:

  • Grid-tied systems are generally more cost-effective in areas with reliable grid power
  • Off-grid systems require larger battery banks and more maintenance
  • Consider your location's grid reliability and net metering policies
  • Factor in future energy needs and potential system expansion
  • Account for battery replacement costs in off-grid systems
  • Consider local regulations and permitting requirements

For optimal system design, consult with a solar professional to verify calculations and discuss specific requirements.