DIY in Boston Massachusetts

lm22

New Member
Joined
Aug 17, 2021
Messages
1
Location
Boston, MA
Has someone in MA or local to Greater Boston area done a comparison of going with a professional install vs the DIY option?

I got a quote from Boston solar for (28) LG 375 Q1C and Enphase IQ 7+ Inverter for $36.8K with install.

Solar production would be 12,698 kWh/Yr1 which falls short of my estimated 13219 annual kwh use.

Appreciate any guidance on pricing the DIY option or if it's DYI tiered grid is allowed in MA

Would federal tax credit be applicable on the DIY route?



Designs includes a total of 38 panels, but they only quoted me 28 panels.
Some stats from Solmetric
Rear roof facing 231 degrees
Tilt -35 degree
skylineheading - 181 deress
solar access: Annual 100%
TSRF -90%
TOF 90%

shade 3.png
 
Last edited:

mrzed001

Voice of reason
Joined
Apr 10, 2020
Messages
740
Location
Hungary - EU
Has someone in MA or local to Greater Boston area done a comparison of going with a professional install vs the DIY option?

I got a quote from Boston solar for (28) LG 375 Q1C and Enphase IQ 7+ Inverter for $36.8K with install.

Solar production would be 12,698 kWh/Yr1 which falls short of my estimated 13219 annual kwh use.

Appreciate any guidance on pricing the DIY option or if it's DYI tiered grid is allowed in MA

Would federal tax credit be applicable on the DIY route?



Designs includes a total of 38 panels, but they only quoted me 28 panels.
Some stats from Solmetric
Rear roof facing 231 degrees
Tilt -35 degree
skylineheading - 181 deress
solar access: Annual 100%
TSRF -90%
TOF 90%

View attachment 60755

Not from the area :)
What type of system do you want ? Grid-tie (sell to grid), Off-grid (store in battery), or Hybrid (both) ?
10,5 kWp solar (28) panels (that area, that orientation) can produce 12,7 MWh a year (just checked)
Max 1,4 MWh, min 0,6MWh in a month:
Boston_solar.png

So off-grid (separated from grid) would not be enough.

Grid-tie I do not know the change rates there. So you buy power at a price and you sell power on a (much lower) price.
This will not zero your power bill too.

Off-grid (with grid support) or hybrid you can store and use solar and have a backup grid line (also sell power with hybrid)

So I am only just curious :)
 
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