Energy: Solar Panels vs Grid Electricity

Determine payback period, long-term savings, and ROI for residential solar installation.

Solar Installation

$
Before any tax credits or rebates
%
$
kW
hrs / day
Annual daily average — typically 2–7 hrs globally
Advanced options
% / yr
% of retail rate
% of retail rate paid for excess energy exported to grid
$
Inverter, cleaning, inspection per year

Grid Electricity

$
$
per kWh
kWh

Analysis Parameters

Advanced options
% / yr
%
Opportunity cost / alternative investment return