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Charalampos Xefteris

Inverter Service & Aineas · 2,500 repairs a year

Charalampos Xefteris

Making solar inverters make sense to technicians, installers and PV owners — on TikTok, on the Energy Talks podcast and at trade shows.

3.47M views in 9 months · 19K followers · Energy Talks podcast · trade shows & Balkan Battery Day

Work with me
  • Energy · Solar PV · Inverters
  • Thessaloniki, Greece
  • Greek · English

At a glance

The numbers

Source: TikTok analytics (Nov 2024 – Jul 2025) and public profile (Oct 2026)
  • 3.47M
    TikTok views
    Nov 2024 – Jul 2025
  • 19K
    TikTok followers
    October 2026
  • 140.8K
    TikTok likes
    profile total
  • 13.6K
    Views per day
    9-month average
  • 16K
    Shares
    9 months
  • 456
    Videos
    on TikTok

Top videos

The videos that blew up

Technical theory out in the field, and answers to what the whole industry is asking. The numbers grow every day.

  • “Kirchhoff's First Law” — theory, out in the field19/05/2025

    “Kirchhoff's First Law” — theory, out in the field

    Views
    322.2K
    Likes
    14.8K
    Comments
    215
    Shares
    1.5K
  • “Why does your solar system get switched off every day, 11 to 6?”22/05/2025

    “Why does your solar system get switched off every day, 11 to 6?”

    Views
    209.2K
    Likes
    2.9K
    Comments
    265
    Shares
    1.1K

Content

See how we work

Real bench, real faults, real guests. Tap a video to watch it.

Off screen

Podcast, trade shows, conferences

The content doesn't stay on the phone: it is shot live where the industry is, with its people.

  • Podcast

    “Energy Talks” podcast — powered by Aineas

    7 studio episodes · special edition from Forward Green Expo 2026 with 14 guests

    Conversations with the people of the industry: Solax, Goodwe, Solplanet, Energy Press, RGA Systems, MES Energy, Technologiki, MEGVA, Clockwork, Breakthrough Hub, Energomichaniki Thrakis. On YouTube and Spotify.

  • Conference

    Balkan Battery Day 2026

    Energy Talks live from the conference

    Interviews with speakers and executives of the storage market: Michał Motylewski, Emmanuel Karapidakis, NE Global (Kostis Geropoulos & Alec Mally), George Alimpinisis.

  • Trade show

    Forward Green Expo (Renewable Energy Tech)

    Thessaloniki, HELEXPO · 2024 · 2025 (36 m² three-sided stand) · 2026 (stand B08)

    Our own stand with a live repair bench, a “We repair solar inverters” screen and Energy Talks recorded on site, three days in a row.

  • Trade shows

    Verde.Tec · TIF · Intersolar · Expotech

    Verde.Tec Athens 2020–2025 · 85th & 86th Thessaloniki International Fair · Intersolar Europe 2022 · Expotech Crete 2024

    Present at every major energy trade show in Greece since 2020, with the workshop “open” to visitors.

  • Energy Talks from the stand, Forward Green 2026
    Energy Talks from the stand, Forward Green 2026
  • Recording an episode with an industry guest
    Recording an episode with an industry guest
  • The Aineas stand, Forward Green 2026
    The Aineas stand, Forward Green 2026
  • Interview at the stand: “We repair solar inverters”
    Interview at the stand: “We repair solar inverters”
  • Balkan Battery Day 2026, Energy Talks live
    Balkan Battery Day 2026, Energy Talks live
  • Balkan Battery Day 2026, the conference stage
    Balkan Battery Day 2026, the conference stage

The team

Who we are

Two people in front of and behind the camera, and a workshop with 2,500 repairs a year behind them.

  • Charalampos Xefteris

    Charalampos Xefteris

    Founder & manager · Energy Talks host

    In renewables since 2009. Manager of Inverter Service and Aineas Technical, with 2,500 inverter repairs a year. In front of the camera and the microphone: explaining the technical stuff simply, without dumbing it down.

  • Konstantina Karakouzi

    Konstantina Karakouzi

    Partnerships, events & production · the soul of the project

    Organises the shoots, the trade shows, the podcast and every brand collaboration, from the first idea to the KPI report. If you write to us, she is the one who answers.

    kkara@aineas.gr

Platforms

Five channels, one bench

Fast on TikTok, in depth on YouTube and the podcast, professional on LinkedIn.

  • TikTok
    @cxefteris
    Followers
    19K
    Likes
    140.8K
    Videos
    456
    Views, 9 months
    3.47M
    Reach, 9 months
    3.35M

    Works best: 30–90 s videos from the bench and the field

    View profile TikTok
  • YouTube
    @aineastexniki224
    Subscribers
    XXXX
    Energy Talks podcast
    7 episodes

    Works best: Podcast, lab vlogs, reviews

    View profile YouTube
  • Instagram
    @cxefteris
    Followers
    XXXX

    Works best: Reels & stories from the lab and trade shows

    View profile Instagram
  • LinkedIn
    /company/aineas
    Followers
    XXXX

    Works best: B2B: technical articles, trade shows, partnerships

    View profile LinkedIn
  • Facebook
    /aineastexniki
    Followers
    XXXX

    Works best: Posts & videos for PV owners

    View profile Facebook

Audience

Who's watching

Technicians, installers and PV owners, mostly 25–44, mostly in Greece.

Age

  • 18–249%
  • 25–3431%
  • 35–4433%
  • 45–5418%
  • 55+9%

Gender

Top countries

  • Greece71%
  • Cyprus9%
  • Germany6%
  • Bulgaria4%
  • United Kingdom3%

Top cities

  • Athens24%
  • Thessaloniki19%
  • Patras5%
  • Heraklion4%
  • Larissa4%

Interests

  • Solar PV & renewables62%
  • Electrical & technical48%
  • Energy efficiency35%
  • Entrepreneurship22%
  • Technology19%

Share of the audience declaring the interest; shares overlap.

Demo data — to be replaced by the platforms' analytics (October 2026).

Services

What you can book

All videos are published exclusively from the @cxefteris account; the content is the creator's intellectual property and is not reposted or edited.

  • Premium Ambassador Package (12 months)

    A long-term collaboration with product exclusivity and a steady presence on the channel.

    • 1 TikTok video per month (12 per year)
    • Mock-up & pre-approval of content themes
    • Product exclusivity
    • 2 giveaways per year
    • Participation in Q&A sessions
    • 1 video per year from your booth at a trade show
    • 2 live workshops per year
    • Quarterly KPI report

    € XXXX

    Ask about this
  • TikTok / Reels video

    A 30–90 s vertical video in the channel's style, subtitled, shot in the lab or in the field.

    € XXXX

    Ask about this
  • Energy Talks podcast

    Guest on an episode, or sponsor of a segment / a special edition from a trade show.

    € XXXX

    Ask about this
  • Event appearance

    Talk, workshop or live demo at your booth; shooting on site.

    € XXXX

    Ask about this
  • YouTube integration

    60–90 s inside a channel video, natural and technically documented.

    € XXXX

    Ask about this
  • LinkedIn post

    A B2B article or post with a technical point of view and data.

    € XXXX

    Ask about this
  • UGC & usage rights

    Video for your own channels and ads, with a 12-month licence.

    € XXXX

    Ask about this

Contact

Got an idea? We've got a bench, a camera and an audience.

Send a couple of lines about who you are and what you'd like to do together. We answer everyone, usually within two working days.

Konstantina KarakouziPartnerships & communication

Send an email

For collaborations, product features, events, podcast and training.