How much annual usage solar is designed to cover.
A 100% offset means modeled annual solar production is roughly equal to the last 12 months of electricity use. It does not mean every utility bill becomes zero.
Massachusetts solar, made clear
See what solar could look like on your home.
Build a preliminary system, understand your estimated energy offset, and compare sizes before you ever speak with a salesperson.
01
Build your estimate
Your home and system
kWh / yr
$
/ kWh
Roof exposureMixed orientation with light shade
System size28 premium 460W panels
28
Modeled equipment
- Solar panels: REC 460W Alpha Pure-RX
- Microinverters: Enphase IQ8X
Production uses a Massachusetts planning range. Your final estimate requires actual roof measurements, fire-code setbacks, sun pathing, and detailed shade analysis.
02
Live estimate
Your solar snapshot
100%
energy offset
Near whole-home target
12.88 kW DC system
Estimated to produce 12,880 kWh in year one against 12,500 kWh of annual use.
Year-one production
12,880 kWh
Modeled estimate
First-year savings
$4,375
Avoided energy cost
Current annual energy cost
$4,375
Before solar
Estimated 25-year savings
$143,000
After solar
Modeled energy charges
Annual
Monthly avg.
Before solar
$4,375
$365
After solar
$0
$0
Estimated savings
$4,375
$365
This estimate models energy charges only and assumes a 5% annual utility-rate increase and 0.25% annual panel degradation.
Your savings may be even greater with available incentives and the value of excess generation through net metering.
Explore your full savings—book a free solar review
03
Explore the tradeoffs
Compare three system sizes
Adding or removing four panels can materially change annual production and offset. Compare the same roof assumptions side by side.
Production and consumption happen at different times.
Eligible Massachusetts systems may receive bill credits for excess generation sent to the grid. Utility rules, minimum charges, and credit values still apply.
A roof-specific design replaces broad assumptions.
Viridis models roof planes, setbacks, shade, and sun exposure so your actual proposal is designed around your home—not a generic template.
Turn the estimate into a real design
Get a custom solar proposal for your roof.
Send us your property details and we’ll create a preliminary 3D design using your actual roof and electricity usage. No pressure and no obligation.
- Roof layout and fire-code setbacks
- Sun exposure and shade analysis
- Production, offset, and options review