Flexia Consulting

Flexia Consulting is a Swedish boutique consultancy specializing in flexibility-market development and operations, founded spring 2024 by Darijan Jelica (VD/CEO) and Martin Willbo (co-founder, AI/ML). Flexia describes itself (its own marketing claim, not independently verified) as the market’s only fully niche company with specialist expertise in flex trading and flex markets. (Source - Flexia Consulting Website (2026))

Background

Jelica holds a master’s degree from Chalmers tekniska högskola, began his career at RISE Research Institutes of Sweden building technical energy-systems competence, then moved to Sweco — a large Swedish consultancy — where he was given early responsibility for developing “one of the country’s first flexibility markets” for a local DSO (the specific DSO/market is not named in the source). This experience led him to found Flexia.

Services

• Establishing, managing, and developing flexibility markets end-to-end — technology, structure, and business models
• Training: a half-day introductory course on flex trading, villkorade avtal, and bilateral agreements
• Villkorade avtal implementation support: Flexia notes that connections eligible for villkorade avtal are usually also eligible for flexibility-market participation, and that combining both tools works better than either alone — consistent with the complementary-tools framing already documented on Villkorade Avtal
• Large-scale battery connection/operation support: helping DSOs ensure batteries selling ancillary services (stödtjänster) to Svenska kraftnät don’t create or worsen local capacity problems, and using battery capacity for local grid benefit via flex trading
• Grid-operations digitalization: AI/machine-learning models built on existing meter and substation data that can automatically trigger flex trading or villkorade avtal activation to stabilize the grid ahead of peak/overload conditions

Team

Beyond the two founders, Flexia has hired Robin Front as flexanalytiker och projektledare (flex analyst and project manager) — background as a chartered engineer and process engineer, most recently at Valmet. (Source - Flexia Consulting LinkedIn (2026))

Client relationships

Four confirmed engagements as of mid-2026, spanning two distinct types of work: ongoing market operations (Mölndal), and one-off consulting/pre-study engagements (Arvika, Borås, Karlstad).

Mölndal Energi — ongoing market operations

Flexia has been Mölndal Energi Elnät AB (MENAB)‘s flexibility-market partner since 2022 — the year Effekthandel Väst launched — and both develops and manages that market on Mölndal’s side; a later LinkedIn post describes the role precisely as “projektledare för Mölndal Energi” (project leader for Mölndal Energi). This makes Flexia the market-operations/consulting layer for MENAB, distinct from NODES, the underlying software platform Effekthandel Väst runs on. Flexia separately runs Framtidens kontrollrum (“Control Room of the Future”) for Mölndal — a digitalization project exploring a digital twin for Mölndal’s grid. See Effekthandel Väst › Market operations partner (MENAB) — Flexia Consulting for detail, including a January 2026 trading record (118 MWh total activated volume, mainly ShortFlex) during an unusually cold winter. (Source - Mölndal Energi Januari Rekordmånad (2026))

Teknik i Väst (Arvika) — pilot analysis study, not market operations

A distinct type of engagement: Flexia performed the cost/subscription-optimization calculations for Arvika Flex, a 2026 pilot study (with Glava Energy Center and Teknik i Väst, under the EU-co-financed #LOKEN project) analyzing flexibility potential and effektabonnemang (capacity subscription) cost optimization for Arvika’s local grid. This was a data-gathering/analysis study, not the launch of an operating flexibility market. (Source - Arvika Flex Pilot Study (Glava Energy Center, 2026))

Nätkraft Borås — förstudie + pilot support

Flexia conducted the förstudie (feasibility pre-study, since spring 2025) that formed the decision basis for Nätkraft Borås launching a small-scale local flex-trading pilot for winter 2025/26 (two initial participants: Borås Energi och Miljö’s kraftvärme production, and a battery-owning elhandelsbolag), and continues supporting the pilot’s startup/development phase. Nätkraft Borås is a very early-stage Swedish local flex-market pilot. (Source - Nätkraft Borås Flex Pilot (2025-2026))

Karlstads Energi AB — training

Flexia delivered its half-day introductory flex-trading course to Karlstads Energi AB, covering technical, business, and regulatory aspects. (Source - Flexia Consulting LinkedIn (2026))

Industry visibility

Flexia attended Sweden Flexibility Day (Gothenburg, an autumn event whose year the source does not state, organized by NODESmarket) alongside CheckWatt, EBB CHARGE elbilbox AB, Fingrid Oyj (the Finnish TSO), Göteborg Energi, and Mölndal Energi. (Source - Flexia Consulting LinkedIn (2026))

Related pages

• Effekthandel Väst — the market Flexia operates for Mölndal Energi
• NODES — the software platform Effekthandel Väst runs on (distinct role from Flexia’s market-operations consulting)
• Villkorade Avtal — complementary-tools framing corroborated by Flexia’s own service description
• Flexibility Market — Swedish local flexibility market landscape
• CheckWatt — fellow Sweden Flexibility Day attendee

Data gaps

• Whether Flexia serves Göteborg Energi Elnät (GENAB), the other Effekthandel Väst DSO — still unconfirmed despite four other client engagements now documented
• Whether Teknik i Väst has proceeded from the Arvika Flex analysis study to launching an operating flexibility market