Process
Six steps from zip code to permission-to-operate
Most New York homeowners do not know what the actual timeline is between deciding to go solar and turning the system on. The honest answer is 6-10 weeks from signed contract to permission-to-operate (PTO), with utility interconnection processing as the bottleneck for most of that window — not the install itself.
EnergiSense runs the same six discrete steps for every project. The homeowner knows where the project is at every stage. No mystery, no "we will get back to you" black box, no surprise add-ons mid-project.
This guide walks through what happens at each step, who does what, and how long it actually takes.
The numbers, with sources
6–10 weeks
Typical EnergiSense timeline from signed contract to PTO
EnergiSense process page1 day
Typical residential solar install duration on a pitched roof (roof day adds 1 day for bundle projects)
EnergiSense process page30 min
EnergiSense hot-lead response target during business hours
EnergiSense — Founder PageNEC 690
National Electrical Code Article 690 governs solar PV installation, inspection, and interconnection
National Fire Protection Association — NECPTO
Permission-to-Operate — the utility approval that allows the system to start producing for net metering credit
PSEG / Con Edison interconnection processesNABCEP
EnergiSense PV Installation Professional certification — the industry credential that separates trained installers from unlicensed operators
NABCEP
Step 1: Intake (15 minutes)
You drop your zip code and bill on the EnergiSense site. Alex personally reads the bill and the property data — not a call center, not a junior rep. The intake confirms: does the property fit the EnergiSense service area? Is the bill in PSEG Long Island or Con Edison territory? Is the roof type flat or pitched? Are there obvious shade or orientation issues from satellite?
Hot-lead response target is 30 minutes during business hours. The output is either a clear next step (site visit scheduled) or a clear no (referred out or flagged as not a fit).
Step 2: Site visit (45–60 minutes)
EnergiSense visits the property to confirm what satellite imagery cannot show: actual roof condition, attic ventilation, electrical service panel size, electrical run from roof to panel, shade patterns at peak production hours, and any structural concerns.
For a flat-roof project, the visit includes membrane inspection, structural capacity discussion, and DOB filing path review for NYC properties.
Step 3: Custom design + proposal (5–7 days)
EnergiSense designs the system around the actual roof and bill — not a template. Panel count, orientation, microinverter vs string inverter, battery decision, electrical upgrade if required.
The proposal separates: gross system cost, NY-Sun installer passthrough, federal credit assumption, NY State credit assumption, NYC abatement (if applicable), financing terms with APR and dealer fees disclosed, projected utility bill savings, and warranty terms. No "you save $XX,XXX" headline number that hides the math.
Step 4: Permits + interconnection (2–6 weeks)
After signing, EnergiSense files permits in week 1. NYC borough projects file with the Department of Buildings. Long Island projects file with the local town. Con Edison or PSEG Long Island interconnection application goes in parallel.
This is the longest step and the biggest source of variance. Utility interconnection processing depends on the utility, the system size, and how clean the application is. EnergiSense follows up weekly to prevent applications from sitting in queue.
Step 5: Install (1–2 days)
Once permits and interconnection are approved, install is fast. A typical pitched-roof residential install is one day on the roof. A bundle project (roof + solar) is two days — roof day one, solar day two. The crew is EnergiSense — same names, same faces, every install.
Flat-roof installs are similar in timeline, with structural and membrane work coordinated.
Step 6: PTO + monitoring (1–3 weeks after install)
After install, the utility inspects and grants Permission-to-Operate (PTO). The system is officially energized for net metering credit on the day PTO is issued — not the day the panels go on the roof.
EnergiSense sets up monitoring on the homeowner's phone the same day. Tesla, Enphase, or SolarEdge apps show production, consumption, battery state, and any system alerts in real time.
EnergiSense — why six steps matter
The reason EnergiSense runs the same six discrete steps every time is that hiding a corner cut is harder when the process is named. Permits filed in week 1, not "soon." Interconnection followed up weekly, not "we are checking." Install scheduled when permits and interconnection are both approved, not before.
Every step is visible. Every step has a defined output. Every step has a person you can call — Alex.
FAQs
How long does residential solar take from start to finish in New York?
Typically 6-10 weeks from signed contract to Permission-to-Operate (PTO). Utility interconnection is the bottleneck, not the install. The actual install is usually one day on the roof for solar-only, or two days for a roof + solar bundle.
What is Permission-to-Operate (PTO)?
PTO is the utility approval that allows your solar system to start producing for net metering credit. Until PTO is issued (by PSEG Long Island or Con Edison), the system cannot legally export to the grid. PTO is typically issued 1-3 weeks after install passes final inspection.
Will the install crew be subcontractors?
No. EnergiSense crews are EnergiSense employees — same faces, every install. The roofing crew is GAF Master Elite certified. The solar crew is NABCEP PV Installation Professional certified.
How much can the timeline slip?
Most slips come from utility interconnection processing, not from EnergiSense. Con Edison and PSEG Long Island both have processing queues that can extend the permit + interconnection step. EnergiSense follows up weekly to prevent applications from sitting.
Can the install happen before permits are approved?
No. Permits must be approved before install begins. Installing without permits creates code violations, voids manufacturer warranties, and prevents the system from getting PTO. EnergiSense never installs ahead of permits.
What happens after PTO?
The system is producing for net metering credit. EnergiSense sets up monitoring (Tesla, Enphase, or SolarEdge app) on your phone the same day. You see production, consumption, and any system alerts in real time. The crew's job is done; the monitoring relationship begins.
About the author
Alex Lubin
Founder, EnergiSense — Independent Solar Advisor
- NABCEP PV Installation Professional
- GAF Master Elite (top 2% of US roofing contractors)
- Long Island, NY since 2021
Alex Lubin founded EnergiSense on Long Island in 2021 to give New York homeowners one person — not a call center — who covers both the roof and the solar system end-to-end. He holds the NABCEP PV Installation Professional certification (the industry credential that separates trained installers from unlicensed operators) and his roofing crew is GAF Master Elite certified, the top 2% of US roofing contractors. Every install carries Alex's name and a 5.0 Google rating across 17 reviews.
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