Pros & cons of Bolt Energie
According to the CallMePower energy experts, here are the main strengths and downsides of Bolt Energie as a Belgian energy supplier.
Pros Bolt Energie
- 100% green electricity from Belgian renewable sources — wind and solar, in direct cooperation with local producers
- Active across all of Belgium — Flanders, Wallonia and Brussels
- Three tariff formulas: fixed (1-year price certainty), variable (monthly market indexation) and dynamic (hourly prices)
- Electricity and gas with the same supplier in a single dual contract
- Transparent about your power source — the portal shows which local producer supplies your electricity
Cons Bolt Energie
- Phone customer service on weekdays only (9:00–17:00) — no evening or weekend line
- The dynamic tariff requires a digital meter
- No welcome discounts and no classic loyalty programme
Who is Bolt Energie?
Bolt Energie is a Belgian energy supplier active since 2018. Its identity is built around one idea: supplying 100% green electricity generated by local Belgian producers of wind and solar power, rather than anonymous green power bought on the wholesale market. Every kilowatt-hour is backed by guarantees of origin (GO).
What makes Bolt distinctive is that it links each customer to a specific local producer. Through the customer portal you can see exactly which wind or solar producer supplies your electricity — a level of transparency that is unusual on the Belgian market. Bolt also supplies natural gas, so electricity and gas can be combined in a single dual contract.
2018
active on the Belgian energy market since
100%
green electricity from Belgian wind & solar producers
3
regions supplied — Flanders, Wallonia and Brussels
Bolt Energie contracts and tariffs
Bolt offers three tariff formulas for both electricity and gas, so you can choose between price certainty, market indexation or hourly pricing. Every contract has a one-month notice period with no early-termination fee.
Bolt Vast (fixed)
A fixed price per kWh for a 1-year term — price certainty regardless of what the market does.
Bolt Variabel (variable)
A price that is indexed monthly to the wholesale market, for an indefinite term.
Bolt Dynamisch (dynamic)
An hourly price that follows the wholesale market — ideal if you can shift your consumption. Requires a digital meter.
Availability and tariff-card conditions can differ per region. Check the current rates on boltenergie.be or compare them against every other Belgian supplier with a free CallMePower adviser.
Compare Bolt with every Belgian supplier
Call CallMePower for free — our English-speaking advisers compare Bolt against every other Belgian energy supplier and switch your contract for you in a single call.
Bolt Energie reviews
Bolt is generally well rated for its local green production and transparency. It scores 4.2 / 5 on Trustpilot (based on around 250 reviews) and 13 / 20 in the Greenpeace 2025 climate ranking, reflecting its direct cooperation with local Belgian producers.
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Compare Bolt with every Belgian supplier
Call CallMePower for free — our English-speaking advisers compare Bolt against every other Belgian energy supplier and switch your contract for you in a single call.
How to contact Bolt Energie
Bolt handles customer contact mainly online, via the My Bolt Energie portal, and by phone on weekdays. The most important contact details are below.
| Contact method | Details |
|---|---|
| Bolt customer service | 02 899 33 00 — Mon–Fri 9:00–17:00 |
| Become a customer Ad | 02 588 02 45 — free English-speaking adviser |
| Online contact form | boltenergie.be contact form |
| [email protected] |
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Report a power cut or gas leak
In the event of a power cut or gas leak you always contact your grid operator, not your supplier — they are reachable 24/7:
- Flanders — Fluvius: 078 35 35 00;
- Wallonia — ORES: 078 78 78 00 (or Resa, depending on your municipality);
- Brussels — Sibelga: 02 274 40 66.
Bolt online and postal address
Most day-to-day tasks are handled through the My Bolt Energie customer portal — updating your personal details, viewing invoices, submitting meter readings and reporting a move. Bolt prefers digital contact; for a formal postal address (for example to send an official takeover or cancellation document), request the correct address from customer service first. All the latest details are on boltenergie.be.
