Illustrative case study

A fictional business. The figures are a modelled scenario, not a client result.

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Yantra EV ChargeEV charger installer · Veliko Tarnovo

How a regional EV-charger installer became Bulgaria's go-to answer on home charging

Battery charging from 1.1k to 4.5k organic sessions a month: +305% organic sessions+305%
+305% organic sessions1.1k → 4.5k · 11 months · Industry, Energy & Mobility
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The challenge

Thousands of new EV owners, asking questions in Bulgarian, getting answers from nowhere.

New EV owners had basic questions about wallboxes, tariffs and grid permits, and no Bulgarian-language source answered them well.

Yantra EV Charge installed wallboxes across north-central Bulgaria from a base in Veliko Tarnovo. The work was good; the website was a six-page brochure. Meanwhile every new EV registration created the same burst of questions — what a wallbox costs, whether the night tariff pays off, how the grid-operator permit works, and whether you can charge at all in a panel apartment block.

Those questions were answered by forum threads, machine-translated German pages and dealer brochures. The opportunity was not to rank for “charger installer”; it was to become the source the whole country — and the AI answer boxes — quoted.

  • Колко струва wallbox?
  • Трябва ли ми разрешение от ЕРП?
  • 7 kW или 11 kW?
  • Нощна тарифа — изгодно ли е?
  • Мога ли да зареждам в блок?
  • Трифазен ток у дома?
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Audit & diagnosis

Six faults found before a single page was written.

  1. 01 · Contenthigh

    No page answered the cost question

    “Колко струва зареждането у дома” and its variants: ~2,900 modelled searches a month, answered only by forum threads and translated foreign pages.

  2. 02 · Contenthigh

    The grid-permit process was invisible

    Owners asked how to get distribution-grid (ЕРП) approval for an 11 kW wallbox. The site said “we handle paperwork” and nothing more.

  3. 03 · AI searchhigh

    0 of 40 tracked questions cited

    Answers were buried mid-paragraph. No page gave a direct, quotable answer in its first 60 words, so AI Overviews quoted forums instead.

  4. 04 · Technicalmedium

    Cyrillic slugs in three encodings

    Percent-encoded, transliterated and mixed URLs all resolved, splitting signals across 3 duplicates per service page.

  5. 05 · Technicalmedium

    4.8 s mobile LCP

    A 2.1 MB autoplay hero video on every page. No structured data beyond Organization.

  6. 06 · Localmedium

    Profile listed as “Electrician”

    Business profile category missed EV-charger installation; Gabrovo, Lovech and Ruse missing as service areas.

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The strategy

Four tactics, wired in series.

Built on our Content Engine plan: one question map, four content clusters, and every page engineered so that a human, a search engine and an AI model can lift the answer straight out of it.

  1. 1

    Topic clusters

    Four clusters — wallboxes, tariffs, grid permits, apartment-block charging — each with a pillar guide and 6–9 answer pages linked both ways.

    34 Bulgarian-language pages

  2. 2

    Calculators

    A home-charging cost calculator and a wallbox sizing tool, built as fast static pages with the maths shown, not hidden.

    2 tools · 41% of quote starts

  3. 3

    AI Overviews

    Every answer page opens with a 40–60 word direct answer, a dated source line and a clear unit (kWh, kW, €), so it can be quoted verbatim.

    29 citations tracked

  4. 4

    FAQ schema

    FAQPage and HowTo markup on the permit and installation guides, validated weekly; Cyrillic slugs consolidated to one transliterated form.

    112 marked-up Q&As

Try the tool we built

Home-charging cost calculator

Tariff

Monthly energy cost

€25

230 kWh at 17 kWh/100 km

24% of public DC (€103/month)

11 kW wallbox
5.1 h
Wall socket
25.3 h

10→90% charge times. Illustrative tariffs, not a quote.

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11 months

Charged one month at a time.

  1. Month 01

    Audit & question map

    Mined 1,800 owner questions from search data, forums and the client's own call log; slugs consolidated.

    1,170 sessions

  2. Month 02

    Cluster architecture

    Four clusters signed off; pillar outlines written; profile category and service areas fixed.

    1,310 sessions

  3. Month 03

    Cost calculator live

    Home-charging calculator shipped with night-tariff maths; first AI Overview citation.

    1,520 sessions

  4. Month 04

    Wallbox pillar

    Wallbox buyer's guide plus 8 answer pages; hero video removed, LCP down to 1.7 s.

    1,800 sessions

  5. Month 05

    Grid-permit pillar

    Step-by-step ЕРП permit guide with HowTo schema — the cluster nobody else had.

    2,140 sessions

  6. Month 06

    Tariff cluster

    Day/night tariff explainers; calculator linked from every tariff answer.

    2,510 sessions

  7. Month 07

    Apartment blocks

    Guides for owners in блокове: shared parking, association consent, metering.

    2,890 sessions

  8. Month 08

    Sizing tool

    Wallbox sizing tool (3.7 / 7.4 / 11 kW) feeding the quote form directly.

    3,270 sessions

  9. Month 09

    Refresh pass

    Top 20 pages re-dated and tightened; answers rewritten to lead with the number.

    3,640 sessions

  10. Month 10

    Regional pages

    Installation pages for six towns within 90 minutes of Veliko Tarnovo.

    4,050 sessions

  11. Month 11

    Full charge

    4.5k sessions, 29 AI citations, 31 quote requests in the month.

    4,460 sessions

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Results

+305% organic sessions.

Modelled scenario for a fictional business — not a client result. Rankings and traffic are never guaranteed; see our Terms.

Organic sessions / month

1.1k to4.5k

Month 0 → 11

AI Overview citations

0 to29

Month 0 → 11

Installation quotes / month

9 to31

Month 0 → 11

Organic sessions per month1 cell = 250 sessions
M0M1M2M31.5kM4M52.1kM6M7M83.3kM9M10M114.5k

Tracked questions — Google.bg, Bulgarian

QueryVol./mo*BeforeAfterAI Overview
колко струва зареждане на електромобил у домаcost of charging an EV at home1,600—#1 Cited
зарядна станция за дома ценаhome charging station price1,30038#2 Cited
разрешение от ЕРП за зарядна станцияgrid permit for a charger590—#1 Cited
wallbox 11 kw или 7 kw11 kW or 7 kW wallbox480—#1 Cited
нощна тарифа зареждане електромобилnight tariff EV charging72064#3 Cited
монтаж зарядна станция велико търновоcharger installation Veliko Tarnovo2109#1—
зарядна станция в блокcharger in an apartment block390—#2 Cited

*Modelled monthly volumes. “—” = not in the top 100.

Month 0колко струва зареждане у дома

AI Overview · source

Forum thread (bg-ev-club)

  1. 1Forum: „Колко ви излиза тока?“
  2. 2Translated DE energy blog
  3. 3Dealer PDF brochure
Month 11колко струва зареждане у дома

AI Overview · source

Yantra EV Charge — cost calculator

  1. 1Yantra EV Charge: Колко струва зареждането у дома
  2. 2Yantra EV Charge: Калкулатор за зареждане
  3. 3Forum: „Колко ви излиза тока?“

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