Solar follow-up email templates for the post-25D era
The post-25D email follow-up reality requires retooled language. The 30% residential solar tax credit ended December 31, 2025 under the OBBBA. Homeowners who purchase systems with cash or loan in 2026 cannot claim a federal tax credit. The 48E commercial credit remains available through 2027 for third-party-owned systems (leases and PPAs). Any email template that mentions the 30% credit, the IRA, or 25D is now actively damaging to your credibility. The templates below assume the new reality and lead with the value propositions that actually hold: utility bill stability, third-party-ownership economics for those who qualify, state incentives, and equipment ownership for those who can absorb the unsubsidized math.
The 6 templates and when to use each
Template 1: post-proposal followup (cash/loan customer)
Subject: Your solar proposal: 3 things to think about this week
"Hi [Name],
Wanted to follow up on the proposal I sent [day]. Three things worth thinking about as you decide:
1. Your utility's rate trajectory. Based on [utility]'s recent filings, the per-kWh rate is trending toward [X] cents over the next 3 years. Your proposed system locks in your generation cost at [Y] cents equivalent.
2. Equipment availability. The panels and inverter we quoted are in stock and the install team has slots in [month]. Pricing on this configuration is good for [N] days.
3. State incentive timing. [State program] is still active. Your eligibility is good through [date].
Want me to set aside an install slot? Reply or call when you're ready.
— [Sender]"
Template 2: post-proposal followup (TPO/lease/PPA candidate)
Subject: Solar lease option — the math after 25D ended
"Hi [Name],
One quick note. With the federal residential credit ended at end of 2025, the cleanest path to federal incentives is now third-party ownership — a lease or PPA where the leasing company claims the 48E commercial credit and passes value through as lower monthly payments.
For your system at [proposed size], the lease/PPA option would run approximately [$X/month] with no upfront cost, vs the ownership option at [$Y] upfront with [Z] year payback.
If the lease path makes more sense for your situation, I can put together that proposal. Want me to?
— [Sender]"
Template 3: revival of a 2025 inquiry that didn't close pre-deadline
Subject: Following up on your [year] inquiry — the rules just changed
"Hi [Name],
You reached out to us about solar back in [date]. The math is different now than it was then — the federal residential credit ended Dec 31 2025, but the lease/PPA path still accesses commercial credits.
If solar is still on your mind, the updated economics for your situation are probably worth a 10-minute conversation. Either reply or pick a time here: [link].
If solar is off your list for now, just reply STOP and I'll close your file.
— [Sender]"
Template 4: rate-increase trigger
Use when the utility announces a rate increase.
Subject: [Utility] just announced [X]% rate increase
"Hi [Name],
[Utility] filed for a [X]% rate increase effective [date]. For a home with your usage profile (~[Y] kWh/month), that's an additional [$Z/year] starting [month].
The solar proposal we discussed locks in your generation cost. Worth a 5-minute conversation about whether the new utility rate changes your timeline?
— [Sender]"
Template 5: equipment-availability ping
Subject: Quick update on equipment for your system
"Hi [Name],
Update on the system we proposed. [Specific equipment change: brand availability, model upgrade, supply timing]. This [improves/changes] [specific aspect] of the proposal.
Happy to send a refreshed proposal if you want to see it.
— [Sender]"
Template 6: long-cycle nurture (90+ days)
Subject: Solar check-in — anything changed?
"Hi [Name],
It's been [time] since we talked about solar. Quick check: has anything changed on your side that would make this a more relevant conversation? New roof, utility bill jumps, move, EV purchase, anything?
If yes, happy to re-engage with current numbers. If no, I'll check in again in a few months.
— [Sender]"
Language to remove from all templates
The following phrases are dead language in 2026 and should be purged from every email template:
"30% federal tax credit" (for cash/loan purchases)
"IRA tax credit" (in residential cash/loan context)
"25D" (in any 2026 customer-facing communication)
"Save 30%" (without specifying the financing structure)
"Tax credit savings of $X" (in cash/loan context)
Any of these in a 2026 followup email signals that your shop hasn't updated its materials, which signals that you might be wrong about other things too. Trust damage compounds quickly.
Language to add
Specific replacements that work in the post-25D market:
"Utility rate stability" instead of "tax credit savings"
"Locking in your generation cost" instead of "saving on installation"
"48E commercial credit through lease/PPA" for TPO conversations
"State and local incentives" framed honestly with current eligibility
"Hedge against rising electricity costs" as the framing for cash/loan economics
The structural shift in solar followup
Pre-2026: followup emphasized the credit countdown and acted as an urgency device. "Install before year-end to lock in the 30%."
Post-2026: followup has to make the value case without the credit doing the heavy lifting. The math is harder. The pitch has to be more specific to the customer's utility, usage, and risk tolerance. Generic urgency claims read as manipulative.
The shops that update their templates and rep training to the new reality close at near pre-2026 rates because their value framing matches what's actually true. The shops that don't update see close rates drop 15-25% while blaming "the market" rather than their messaging.
Where the operational layer keeps templates current
Email templates drift. A new state incentive launches; the templates don't update. A utility announces a rate increase; the rate-trigger template isn't deployed. An equipment supplier changes pricing; the equipment-update template doesn't fire.
AI lead followup can be configured to update templates based on triggers — utility filings, state incentive changes, equipment availability — and fire the right template at the right moment for the right segment of your lead base. The mechanical work of keeping templates current and matched to triggers runs without office-manager memory.
This is the deployment that matters most in the post-25D market. The shops that update their language fast and consistently have a measurable advantage. The shops that send pre-2025 templates to 2026 customers don't just lose deals — they lose credibility.