Skip to content
RoofQualify

Solar in Middlesex County, MA

Solar panels in Cambridge, MA

4.2 peak sun hours per day. See what the data says about Cambridge, then check your specific roof free.

Utility territory: Eversource

Local context

What limits Cambridge roofs

Cambridge averages 4.2 peak sun hours per day in the regional data. Roof orientation, usable area, and shade can reduce production further for an individual property.

Solar data for Cambridge

Peak sun hours / day
4.2 hrs

Modeled annual average.

Typical system size
6–10 kW

Residential, based on typical household load.

Estimated first-year savings
$2,250–$3,800

Per year for a typical 6–10 kW system. The high end assumes the larger array.

Roofs suitable for solar
55–68%

Modeled from regional adoption data.

Primary utility
Eversource

Contact your utility for current net billing enrollment status.

Net metering / billing
Net Billing (RCP)

Massachusetts credits exported solar from residential systems up to 25 kW at approximately the full retail rate with monthly rollover, so exported energy offsets consumption at retail. This estimate assumes a system sized to your annual usage.

Estimates use the average Massachusetts current utility rate (before solar) of $0.29/kWh (EIA, retrieved Aug 2026) and modeled solar production; individual results vary with your rate, usage, roof orientation, and shading.

Personalized estimate

Estimate your first-year solar savings

Start with your bill or adjust the rate and typical system size for Cambridge.

kW

Typical homes: 6–10 kW.

$/ kWh

Prefilled with the state residential average.

Estimated first-year savings

$3,000/ yr

$2,250–$3,800/yr for a typical 6–10 kW system — the low end is a smaller array, the high end a larger one.

Estimate — individual results vary with your rate, usage, roof orientation, and shading. Assumes an 85% system derate and 100% self-consumption; exported energy uses the local net-billing estimate.

City averages are a starting point — check your address for your verified result.

Frequently asked questions

How much sun does Cambridge get for solar?

Cambridge receives approximately 4.2 peak sun hours per day on average, based on modeled regional data.

What is the estimated first-year savings from solar in Cambridge?

For a typical 6–10 kW system in Cambridge, first-year savings are estimated at $2,250–$3,800 per year: the low end uses the smaller system, while the high end is up to the larger system. Estimates use the average Massachusetts current utility rate (before solar) of $0.29/kWh (EIA, retrieved Aug 2026) and modeled solar production; individual results vary with your rate, usage, roof orientation, and shading. These are educational estimates, not guarantees.

What can limit solar production in Cambridge?

Cambridge averages 4.2 peak sun hours per day in the regional data. Roof orientation, usable area, and shade can reduce production further for an individual property.

Data source: City figures are modeled estimates for general guidance — not a quote for any specific property.

Ready to check your roof in Cambridge?

The city data above is a regional estimate. Enter your address to get a personalized result based on your actual roof.

Solar data for nearby Massachusetts cities

View all cities