Case Study: How a Regional Solar Installer Cut Cost Per Lead 65% and Broke Into AI Overviews — OnyxRank

**Industry:** Residential Solar Installation (3-state service area)

**Plan:** [OnyxRank](https://onyxrank.com) Growth

**Timeline:** 6 months

**Result:** SEO audit score improved from **22 → 91**; organic sessions up **367%**; blended cost per lead down **65%**; qualified quote requests up from 18/mo to 61/mo

The Challenge

A mid-size residential solar installer — roughly 40 employees, three crews, licensed and NABCEP-certified across three neighboring states — had a good reputation on the ground and a bad one in Google's eyes. Referrals and paid search kept the pipeline alive, but paid cost-per-click for solar keywords had climbed past $18, and blended cost per lead was sitting at **$148**. Margins on a $22K average install couldn't absorb that forever.

The root problem wasn't effort — the company had a blog, a handful of service-area pages, and a marketing person posting occasionally. The problem was structure. Three things were working against them:

1. **They were invisible next to marketplaces.** Searches like "solar installer [city]" and "how much does solar cost in [state]" were dominated by lead-gen aggregators (EnergySage-style marketplaces) and national installers with ten times the content footprint. The company's own service-area pages were thin, near-duplicate copies of each other with a city name swapped in — exactly the kind of content Google's algorithms are built to suppress.

2. **Core Web Vitals were failing on mobile**, where most of their traffic originated. Hero images on service pages were 2-4MB uncompressed, there was no lazy loading, and Largest Contentful Paint averaged 5.8 seconds. Slow pages were losing rankings and losing visitors before the page even rendered.

3. **Zero presence in AI Overviews.** Top-of-funnel research queries — "is solar worth it in [state]," "solar tax credit explained," "net metering vs battery storage" — were exactly the kind of question searchers now get answered directly in AI Overviews before they ever click a link. The installer had no content built to be cited: no clear definitional answers, no FAQ schema, no cited statistics.

The Approach

[OnyxRank](https://onyxrank.com) started with a full technical and content audit, which came back at 22/100 — a site that was functional but structurally invisible.

**Technical fixes first.** Images were compressed and served in modern formats, lazy loading was implemented site-wide, and render-blocking scripts were deferred. LCP dropped from 5.8s to 1.9s on mobile within the first three weeks. LocalBusiness, Service, and FAQ schema were added across every service-area and location page so Google (and AI crawlers) could parse exactly what the business offered and where.

**Programmatic local pages, done right.** Instead of duplicate city pages, OnyxRank rebuilt the service-area template to pull in genuinely unique data per location: average peak sun hours, the specific utility's net metering policy, local permitting timelines, and state-specific incentive stacking (state credit + federal credit + utility rebate where applicable). Fourteen service-area pages went from interchangeable filler to pages that actually answered "what would this cost and how fast would it pay off, here, specifically."

**GEO-structured pillar content.** For the big informational queries driving AI Overview traffic, OnyxRank restructured content around direct, quotable answers up top — a two-sentence definitional answer followed by supporting detail, source citations for every statistic, and FAQ blocks marked up with schema. This is the format AI Overviews and chat assistants pull from; vague, marketing-toned intros get skipped.

**E-E-A-T signals.** Author bios were added for the NABCEP-certified electricians actually writing and reviewing the content, and a real project gallery went up — permitted installs, before/after shots, and homeowner-reported production numbers, all tied to specific service-area pages.

**Off-site.** Local news mentions, a renewable energy directory placement, and two HOA/community publication features built relevant local authority without resorting to generic directory spam.

The Results

Over six months:

• **SEO audit score: 22 → 91**
• **Organic sessions: ~2,100/mo → ~9,800/mo** (+367%)
• **Page-1 rankings for local install keywords: 2 pages → 14 pages** (one per service area)
• **AI Overview citations: 0 → 11 target queries**, including "solar tax credit explained" and "net metering vs battery storage"
• **Qualified quote requests: 18/mo → 61/mo**
• **Blended cost per lead: $148 → $52** (-65%), as organic began carrying volume paid search had been shouldering alone
• **Mobile LCP: 5.8s → 1.9s**

The installer didn't cut its paid budget — it redirected it toward the highest-intent bottom-funnel terms, while organic took over the research-stage traffic that used to leak to marketplaces and never come back.

Key Takeaways

• **Duplicate local pages are worse than no local pages.** Templated city pages with swapped names get filtered by Google's algorithms. Real, location-specific data (utility rates, incentives, sun hours) is what earns rankings — and what a searcher actually needs.
• **Core Web Vitals aren't a technicality — they're a rankings and conversion lever.** A 3-second LCP improvement compounds: better rankings, lower bounce, more form completions.
• **AI Overviews reward answerable content, not marketing copy.** If your top-of-funnel content doesn't state a direct answer in the first two sentences with a cited source, it won't get pulled into AI-generated answers — and that's a growing share of research-stage search traffic.
• **High-ticket, considered purchases benefit most from organic economics.** When your paid CPL is already near $150, every point of organic share directly improves margin — this installer didn't grow revenue by spending more, it grew revenue by spending smarter.

Want Results Like These?

If your site is losing informational searches to marketplaces and aggregators, or your service-area pages look like templated filler, there's a fixable structural problem underneath it. [Get your free audit](https://onyxrank.com/free-audit) to see where you stand, or [see our plans](https://onyxrank.com/pricing) to find the right fit for your business.