Features
Rooftop Solar + Battery
Reddy Shed
Separate from PG&E Grid?
No (usually grid-tied)
Yes (fully off-grid)
Must replace aging roof?
Yes
No
Location
Must be on roof (specific angle, sunlight exposure)
Pick your location (ground-based)
Install timeline
1–3 months from purchase (permits, inspection, roof work)
Delivered and installed ~7 days from purchase
Portability
Fixed to home
Portable / relocatable
Resale Value Impact
Depends (may be a selling point or liability)
Neutral, can take it with you
Permitting Complexity
High
Low
EMF emmissions
High (inverter & battery near living space)
Low by design (all systems outside & grounded)
Heat load on house
Increases roof and attic temp
None
Fire risk
Increased - electrical fires on roof are hard to detect and access
Safer - contained to outbuilding and easy to shut down
Solar panel material offgassing
On roof = potential for VOCs and microplastics in living spaces in summer
Outbuilding = fumes remain outside living space
Works off-grid
No - most systems need to tie into grid
Yes - can be placed anywhere
Long-Term Maintenance
Moderate (roof wear, inverter/battery service)
Minimal
Save money on electrical bills
Yes, tied into grid
No, not tied into grid
Can charge electric car?
Yes
Yes
Financing Available?
Yes
Yes
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