Blog - Page 9 | Athol Energy

Busy in-house drafting desks beside a quieter laptop workstation in a Northeast office.

19 Aug, 2026

In-House vs Outsourced Solar Engineering | Athol Energy

Rooftop solar array with modules shifted around a plumbing vent, installer photographing the layout.

18 Aug, 2026

Why As-Built Drawings Are Required for Solar PTO

Bidirectional utility meter and solar AC disconnect next to a residential electrical panel.

18 Aug, 2026

Solar Grid Connection vs PTO (and PPO) | Athol Energy

Corner of a stamped solar roof plan on a drafting table with a scale ruler.

17 Aug, 2026

What a PE Stamp Means on a Solar Plan Set

Hands with a calculator and printed production figures on a wooden desk in overcast daylight.

16 Aug, 2026

Solar Financial Analysis for East Coast Proposals

New England colonial rooftop solar with a clear firefighter access pathway between modules.

16 Aug, 2026

Residential Solar Permit Packages for Northeast AHJs

Utility pole and rooftop solar in a coastal New England neighborhood, showing utility interconnection for solar.

15 Aug, 2026

Solar Interconnection: National Grid and Eversource

Solar training classroom with a PV module on a stand and installers taking notes.

14 Aug, 2026

What NABCEP Certification Means for Solar | Athol Energy

Two people reviewing solar blueprints in a small contractor office.

14 Aug, 2026

Should Solar Installers Outsource Permit Design?

Engineer marking red revisions on a printed rooftop solar plan at a jobsite table.

13 Aug, 2026

As-Built Solar Drawings: What They Are | Athol Energy

Installer in a work truck preparing a solar interconnection application on a laptop with a printed one-line drawing.

12 Aug, 2026

How to Apply for Solar Interconnection in MA, RI, CT

Engineer applying a circular ink seal to a solar structural calculation packet.

12 Aug, 2026

Why Solar Installations Need a PE Stamp | Athol Energy

Kitchen table meeting with a printed solar layout and a utility bill during a sales proposal.

11 Aug, 2026

What a Solar Sales Proposal Should Include | Athol Energy

1…8910