Industry landscapes
Get Pro
Industry report

Funding and advertised pay are reported in USD; filed accounts retain their stated source currency and basis.

Exchange-rate basis

Indicative conversions use ECB reference rates dated 2026-09-14, applied consistently across all periods. They are not historical exchange rates. Indian rupees may use crore (1 crore = 10 million); other currencies use K, M and B. CSV downloads, source documents and quoted news headlines retain their original currencies.

THE SWEDEN EDITION 2026

Sweden’s
energy tech industry,
in focus.

The companies, capital and talent shaping energy tech in Sweden. Find the leaders. Understand the segments. See where the activity is.

Explore in Radar Read the key signals
Snapshot: Funding in USD
Illustrated cover for Energy Tech Industry Landscape of Sweden
SE
COMPANIES · CAPITAL · TALENT

An industry ecosystem,
measured in context.

Energy Tech illustration
Companies tracked 421Energy Tech ecosystem in Sweden Disclosed funding $9.03B105 companies · all recorded rounds Companies hiring 37With open roles at the snapshot Tracked open roles 550 employers posted in the preceding 30 days
MEET THE COMPANIES

Explore Sweden’s energy tech leaders

24 featured companies from the funding, hiring, revenue and team-size leaderboards.

Expand panel +
Explore the full landscape
Energy Tech company highlights in Sweden, snapshot 3 September 2026
Company
Polestarpolestar.com$4.06B—2,377—
Einrideeinride.tech$892.27M2 roles571Financial figure available in RadarView in Radar
Voivoi.com$597.59M—1,000—
Airaairahome.com$550.72M———
NEVSnevs.com$506.17M—340—
Volta Trucksvoltatrucks.com$401.94M—13—
Tibbertibber.com$177M5 roles61Financial figure available in RadarView in Radar
Heart Aerospaceheartaerospace.com$157.55M6 roles130—
Systemairsystemair.com—5 roles132Financial figure available in RadarView in Radar
Ewayseways.se—2 roles135—
Micropower Groupmicropower-group.com—2 roles——
Nordic Energy Auditnordicenergyaudit.se—2 roles14—
Swetouchswetouch.se—2 roles——
Capture Energycaptureenergy.eu———Financial figure available in RadarView in Radar
Cell Impactcellimpact.com——118—
Charge Ampscharge-amps.com——131—
ChargeFinderchargefinder.com————
Clean Motioncleanmotion.se——6Financial figure available in RadarView in Radar
Comsyscomsys.se——35Financial figure available in RadarView in Radar
Evifyevify.se————
Flowerflower.se————
Heliospectraheliospectra.com——15—
IVTivt.se——201—
Insplorioninsplorion.com——8Financial figure available in RadarView in Radar
24 featured companies

Locked revenue figures are available in Radar; the eight company financial previews stay the same throughout this page. A dash means the figure is outside these featured lists. Revenue years vary by company; the figures are not a like-for-like revenue comparison. Compare annual accounts ↗

Company discovery

Recorded evidence only

Explore the live startup set in Radar

No company example met every recorded classification, independence and public-profile gate in this snapshot. The live directory may have newer qualifying companies.

Explore classified startups in Radar ↗
THE KEY SIGNALS

Energy Tech industry KPIs in Sweden

A few useful ratios bring the size of this ecosystem into perspective.

3 September 2026
Hiring participation8.8%

37 of 421 tracked companies have open roles.

Funding participation29.2%

123 of 421 tracked companies have a recorded round.

Top 3 funding share61.5%

Share of disclosed capital received by the three largest recorded recipients.

Median disclosed round$2.18M

Midpoint of 316 rounds with a disclosed amount.

Scale is concentrated. Opportunity is broader. The three largest funding recipients hold 61.5% of disclosed capital, while 70.8% of tracked companies have no recorded funding round.

Explore the segments →
CAPITAL & COMPANY FORMATION

How Sweden energy tech has grown

Recorded company formation and disclosed funding across the complete annual series shown.

Expand panel +
2016 — 2025

Disclosed funding by year

Sum of recorded funding rounds · USD

Sweden energy tech
$0$891.71M$1.78B$2.68B$3.57B2016: $51.33M20162017: $50.4M20172018: $619.36M20182019: $264.17M20192020: $386.97M20202021: $1.27B20212022: $3.13B20222023: $167.25M20232024: $1.71B20242025: $659.09M2025
View the numbers
Annual energy tech funding and company formation in Sweden
YearFunding (USD)FoundedRaising
2016$51.33M2322
2017$50.4M2822
2018$619.36M3326
2019$264.17M3326
2020$386.97M3323
2021$1.27B2529
2022$3.13B2023
2023$167.25M921
2024$1.71B319
2025$659.09M118
WHERE CAPITAL SITS

Funding concentration

Share of all disclosed company funding.

  • Polestar45.0%
  • Einride9.9%
  • Voi6.6%
  • Other companies38.5%

Funding by stage

373 recorded rounds since 2016

NUMBER OF ROUNDS
Seed & Angel102 27.3%
Series A–B74 19.8%
Series C+ / PE22 5.9%
Grants, debt & other175 46.9%

Recent recorded rounds

Latest recorded rounds · USD
1 rounds

Swipe or scroll horizontally to browse.

Series D03/2026
Candela $32M

Backed by IFC and EQT and others.

Largest and notable recorded rounds

Each card is one recorded round
10 cards

Swipe or scroll horizontally to browse.

Series D04/2021
Polestarpolestar.com$550M

Backed by Chongqing Chengxing Equity Investment Fund and Zibo Financial Holding and others.

Series C08/2025
Airaairahome.com$174.6M

Backed by Altor Equity Partners and Kinnevik and others.

Series C12/2020
Voivoi.com$160M

Backed by The Raine Group and VNV Global and others.

Series B01/2024
Airaairahome.com$158.8M

Backed by Altor Equity Partners and Collab Fund and others.

Series D12/2021
Voivoi.com$115M

Backed by The Raine Group and VNV Global and others.

THE BUSINESS BEHIND THE ACTIVITY

Revenue, profitability & financial strength

Expand panel +

Annual accounts availability

No reviewed exact national-ID connector has yet been qualified for Sweden; this is a checked implementation boundary, not evidence that filings are absent.; No reviewed exact national-ID connector has yet been qualified for Sweden; this is a checked implementation boundary, not evidence that filings are absent.

DIGITAL FOOTPRINT

Web traffic, app reach and release cadence

How the Sweden companies on this page show up online: the sites people visit, the apps they install, and how often those apps ship.

Busiest websites

11 of the 421 companies on this page carry a measured traffic record (2.6%); these are the largest of those, by monthly visits. The median among them is 178,129 visits.

CompanyMonthly visitsAuthorityMobile
Polestarpolestar.com2,812,2556668.7%
ChargeFinderchargefinder.com490,3505165.9%
Voivoi.com442,9844686.2%
Yaleyalehome.com202,4084461.7%
Momentummomentum.se198,8542462.2%
Dibzdibz.se178,1293073.2%
Airaairahome.com141,7933973.3%
Telldustelldus.com115,7733262.7%
Ferroampferroamp.com83,4683288.5%
Plejdplejd.com38,8154119.4%

Visits and authority are third-party web estimates, not company-reported figures.

Most-installed apps

69 of these companies (16.4%) publish at least one Android app — 122 apps in all, carrying 13.5M installs between them.

AppInstallsRatingStore category
Voi – e-scooter & e-bike hireVoi7.9M4.8Travel & Local
Tibber - Smarter powerTibber967K4.1House & Home
Yale AccessYale636.5K4.4Lifestyle
Yale HomeYale619.6K3.6Lifestyle
PlejdPlejd581.4K—House & Home
Polestar PerformancePolestar379K4.1Auto & Vehicles
ChargeFinder: EV ChargingChargeFinder345.8K3.3Maps & Navigation
Lexin LexikonLjungh312.1K—Education
Greenely - Save energyGreenely272.9K—House & Home
PolestarPolestar194.3K4.1Auto & Vehicles

Installs are lifetime totals to date at the June 2026 store reading — a measure of reach, not of people using an app today.

App reach by segment

The busiest app inside each of this page’s own segments, with the quarterly release trend behind it (2023Q2–2026Q2).

SegmentAppsInstallsLeading appRelease trend
Electric Vehicles5510MVoi – e-scooter & e-bike hire 7.9M
Road Transport Tech68.1MQick Scooters 128.9K
Energy Efficiency Tech553.5MTibber - Smarter power 967K
Smart Homes223.3MYale Access 636.5K
Property Management Tech182.6MYale Home 619.6K
Facility Management Tech462.2MPlejd 581.4K
Energy Storage Tech481.3MChargeFinder: EV Charging 345.8K
Security & Surveillance Technology81.3MYale Link 49.6K

A company can carry several segment tags, so these rows overlap and should not be added together. Trend lines are zero-based and share one quarter grid, so a flat line is a quiet segment, not a missing one.

Release cadence by quarter

New apps published, beside apps whose most recent update landed in that quarter — the second bar is how much of the shelf is still being maintained.

2023Q1: 52023Q1: 22023Q12023Q2: 42023Q2: 02023Q22023Q3: 42023Q3: 22023Q32023Q4: 12023Q4: 22023Q42024Q1: 12024Q1: 12024Q12024Q2: 12024Q2: 02024Q22024Q3: 32024Q3: 92024Q32024Q4: 22024Q4: 22024Q42025Q1: 12025Q1: 82025Q12025Q3: 32025Q3: 52025Q32025Q4: 12025Q4: 152025Q42026Q1: 22026Q1: 162026Q1

Darker bars are new releases, lighter bars apps updated. 81 of 122 apps carry a release date. The series ends at 2026Q1, the last quarter that closed before the June 2026 reading.

INSIDE THE INDUSTRY

The Sweden energy tech market map

Explore the segments behind the headline numbers.

Expand panel +

Where companies are building

Rank segments by scale, hiring or disclosed funding.

Enterprise tech249
Consumer digital152
Green transport133
Deep tech118
Enterprise software58
Electric vehicle charging53
Saas46
Smart buildings38
Energy saas37
Hvac optimization software26
Sustainable batteries23
Building energy management system18

Companies can sit in several segments. Counts and funding overlap.

SEGMENT TO EXPLORE

Enterprise tech

The largest measured segment in this report snapshot.

249companies
10.0%have hiring activity

25 companies hiring · $7.34B disclosed funding

Explore in Radar

How companies make money

Common revenue models; a company can use more than one.

Physical commerce217
Subscription150
E-commerce - product120
Commission on transaction77
Fee-for-service42
E-commerce - service24
Renting / leasing8
Advertising8
THE COMPANIES IN MOTION

Who is listing, hiring leaders, launching and winning work

Recorded corporate activity linked to companies in this landscape.

Expand panel +
Recent corporate headlines 10 dated reports
IPO activityeinride.tech ↗

Einride AB (publ) (“Einride” or the “Company”), a technology company driving the transition to cost-efficient electric and autonomous freight operations for some of the world’s largest shippers, and Legato Merger Corp. III (NYSE American: LEGT) (“Legato”), a special purpose acquisition company, today announced the public filing of a registration statement on Form F‑4 (the “Registration Statement”) with the U.S. Securities and Exchange Commission (“SEC”) in connection with the proposed business combination between Einride and Legato (the “Transaction”). The Transaction, which was announced on November 12, 2025, is expected to result in Einride listing its ordinary shares in the form of American Depositary Shares (“ADS”) on NASDAQ in the second quarter of 2026 under the ticker symbol “ENRD”, subject to customary closing conditions. The Transaction values Einride at a pre‑money equity value of $1.35 billion and is expected to deliver approximately $333 million in gross proceeds including a $113 million oversubscribed PIPE capital raise, announced on February 26, 2026, from a group of new and existing investors, and up to $220 million in proceeds from Legato’s cash‑in‑trust before accounting for potential redemptions and transaction expenses.

Funding roundsmetacon.se ↗

Metacon AB (publ) has secured temporary project financing at market terms and received gross proceeds of 50 MSEK (the "Loan") from Fenja Capital II A/S.

Funding roundsmidsummer.se ↗

On January 20, 2026, Midsummer AB (publ) ('Midsummer' or the 'Company') announced a directed share issue (the 'Guarantor Issue') that enabled the guarantors of the Company's recently completed rights issue (the 'Rights Issue') to choose to receive their remuneration in shares in accordance with the guarantee agreements entered into.

Mergers & acquisitionsnorthvolt.com ↗

The acquisition of Northvolt by the American company Lyten is delayed.

Funding roundsminesto.com ↗

On 28 October, Minesto announced the outcome of the company's rights issue of up to 82,364,595 shares. ... The Rights Issue provides the company with proceeds of approximately SEK 99.0 million before deduction of costs related to the Rights Issue.

Funding roundsmevaenergy.com ↗

Meva Energy, a Gothenburg, Sweden-based cleantech startup, has secured €40 million (approximately $42 million) in venture debt financing from the European Investment Bank (EIB) to scale its on-site biogas technology.

Funding roundsepishine.com ↗

Epishine, a Swedish manufacturer of organic photovoltaic (OPV) cells, has received direct funding of SEK 33.7 million ($3.46 million) from the Swedish Energy Agency (SEA) towards expanding the capacity of its industrial roll-to-roll PV production line.

Funding roundsnrlyze.se ↗

Stockholm-based energy tech startup Nrlyze, which focuses on reducing heat waste in buildings, has raised SEK 10 million (around €897K) in a funding round led by VEQ and Aipa Invesco AB, with ongoing backing from existing investors such as Peter Carlsson of Northvolt and Martin Anderlind.

Asset acquisitionsuniti.earth ↗

Uniti notably completed its merger with Windstream's Fiber-to-the-Home (FTTH) business last year.

Leadership movesinsplorion.com ↗

Effective immediately, Olof Andersson has been appointed COO, assuming responsibility for leading the Company's operational activities.

Full recorded event mix

Top 10 categories among 459 recorded events in the 24-month window.

Asset acquisitions
122
Company announcements
62
Funding rounds
56
Leadership moves
50
Contracts
47
Earnings
42
Capital infusions
16
Mergers & acquisitions
16
Layoffs
15
Job creation
8
6 activity cards

Swipe or scroll horizontally to browse.

IPO pipeline

1 companies with recorded IPO activity

Einride ↗

SPAC · NASDAQ6 reports

Leadership moves

17 tracked people moves

Insplorion ↗
Olof Andersson

Appointment Chief Operating Officer

Insplorion ↗
Johan Rask

Resignation Previously Chief Executive Officer

Uniti ↗
Manuel Sampedro

Appointment EVP and Chief Network Officer

Uniti ↗
Bobby Walters

Appointment SVP of Kinetic Construction

Midsummer ↗
Eric Jaremalm

Appointment Chief Executive Officer

Einride ↗
Gary Hicok

Appointment Board of Directors

Systemair ↗
Robert Larsson

Appointment President and CEO

Einride ↗
Anubhav Verma

Appointment Chief Financial Officer

Regulatory events

3 recorded events

Northvolt ↗

approved for purchaseISP

Uniti ↗

approved functional separationACCC

Northvolt ↗

approved to continue activities

Litigation

3 tracked suits

Company
einride v A.P. Moller–Maersk

contract breachCivil · Ongoing

Company
Sweden’s debt-collection authority v northvolt

cross-border bankruptcy claim and debt collectionCivil · Ongoing

Earnings pulse

Reported company results in the recorded window.

10companies
44period observations
5.7%median reported growth

Median across 17 reported growth observations; companies may contribute multiple periods.

Mergers and acquisitions

Company-linked deal reports; status is preserved as recorded.

Acquirer → targetStatusDateValue / context
lyten→Northvolt ↗Announced2026-01-16Not stated in snapshot
Legato Merger Corp. III→Einride ↗Announced2025-11-20$1.8B
Systemair→nadi airtechnicsCompleted2025-08-11Not stated in snapshot
Uniti→harbour ispAnnounced2025-08-10Not stated in snapshot
Uniti→opticommCompleted2025-08-10Not stated in snapshot
exagon impact capital→SunRoof ↗Completed2025-05-16Not stated in snapshot

A discussion or rumour is not a completed transaction. An unstated value is not zero.

PEOPLE & OPPORTUNITY

The talent market

1 postings in the preceding 12 months. The full 2-posting snapshot covers 2 employers.

Expand panel +

Most advertised job titles

Clean Energy Co Founder Head Fo Product (100 Remote) (Mfd)1
Future Energy Programme (Transmission & Distribution)1
0 internship postings

1 tracked postings mention remote work.

The seniority mix

1 postings specify a level.

lead
1
unspecified
1
THE PEOPLE BUILDING THE FIELD

Founders and leaders

328 founders and chief executives across 207 companies.

Expand panel +
12 profiles

Swipe or scroll horizontally to browse.

Education networks

32 profiles with education records.

Chalmers University of Technology
10
KTH Royal Institute of Technology
7
INSEAD
4
Lund University
3
University of Gothenburg
2
Uppsala University
2
Harvard Business School
2
Copenhagen Business School
2

Prior employers

3 profiles with prior-work records.

Google
1
Paypal
1
McKinsey
1

Profiles cover recorded founders and leaders; contact details remain in Radar.

NEWS INTELLIGENCE

How this industry appears in the news

199,776 articles in the measured 12-month window.

Expand panel +
199,776articles in the measured year
30,154articles in 2026Q1
27.1%positive tone in the latest complete year

News volume trends

Energy Tech coverage across Sweden · articles per complete quarter

033,12766,25599,382132,5102021Q2: 27,6152021Q22021Q3: 27,5492021Q4: 26,8782022Q1: 31,5232022Q2: 34,8332022Q22022Q3: 31,2892022Q4: 38,1822023Q1: 40,3452023Q2: 39,0142023Q22023Q3: 40,5942023Q4: 35,6032024Q1: 43,7892024Q2: 50,2572024Q22024Q3: 47,3822024Q4: 48,7772025Q1: 66,7702025Q2: 40,7552025Q22025Q3: 115,2262025Q4: 22,6912026Q1: 30,1542026Q1
View quarterly article counts
QuarterArticles
2021Q227,615
2021Q327,549
2021Q426,878
2022Q131,523
2022Q234,833
2022Q331,289
2022Q438,182
2023Q140,345
2023Q239,014
2023Q340,594
2023Q435,603
2024Q143,789
2024Q250,257
2024Q347,382
2024Q448,777
2025Q166,770
2025Q240,755
2025Q3115,226
2025Q422,691
2026Q130,154

Article volume measures coverage, not market sales.

Tone of coverage over time

2021
39,288 positive · 30,897 neutral · 17,607 negative
2022
54,527 positive · 48,506 neutral · 32,627 negative
2023
60,996 positive · 60,996 neutral · 33,364 negative
2024
63,066 positive · 95,791 neutral · 31,196 negative
2025
66,554 positive · 150,102 neutral · 28,605 negative

Leading coverage topics

Energy Tech coverage across Sweden · ranked by full-period article count.

International And Transnational Geographic Entities300,010 articles in the full recorded period
108,075 recent · 81,371 prior
Geopolitical Disputes And Contested Areas300,002 articles in the full recorded period
108,074 recent · 81,365 prior
Administrative And Political Subdivisions299,988 articles in the full recorded period
108,068 recent · 81,365 prior
International Sports Competitions16,271 articles in the full recorded period
3,484 recent · 2,823 prior
International Political Relations13,585 articles in the full recorded period
1,973 recent · 2,023 prior
Olympic Games Coverage9,816 articles in the full recorded period
2,140 recent · 2,099 prior
Security And Defense Policies9,372 articles in the full recorded period
1,401 recent · 1,401 prior
Winter Sports Coverage7,067 articles in the full recorded period
1,810 recent · 1,586 prior
Championship Event Highlights6,637 articles in the full recorded period
1,606 recent · 1,122 prior
International Relations And Diplomacy6,439 articles in the full recorded period
1,036 recent · 946 prior

Recent and prior counts use the source comparison windows.

Topics gaining and losing attention

Energy Tech coverage across Sweden

KeywordRecentPriorChange
countries4,1931,858126%
tariff negotiations684122461%
final match recaps364144153%
free trade deals36253583%
women\'s champions league36219883%
trade dispute mechanisms36047666%
bilateral trade34342717%
thrash rock elements321281046%
ski competitions31819960%
international cups31216490%
summer olympics athletics35276-87%
olympic career milestones67273-75%
olympians career highlights67270-75%
budget motel6268-98%
motel0262-100%

Event and signal lenses

Energy Tech coverage across Sweden

All complete annual cohorts shown
Rising

Regulatory Risk

498,425 classified articles

territories, disputed islands, countries

8.7% critical · 7.7% positive
Rising

Funding Momentum

25,176 classified articles

ice hotel, ice palace hotel, budget motel

35.4% critical · 44.1% positive
Rising

Growth

33,945 classified articles

quarterly results, earnings report, quarterly financials

30.1% critical · 49.3% positive

Energy Tech coverage across Sweden. Topic labels describe recorded classifications and can include broad context.

RESEARCH SIGNALS

What Energy Tech research is working on

53,205 papers in the recorded worldwide scope.

Expand panel +
53,205papers
53,205worldwide comparison pool
—India-affiliated papers

Research orientation

Promising
25,316
Breakthrough
16,441
Descriptive
4,336
Problem-identifying
3,698
Comparative
2,002
Cautionary
1,267
Critical
145

Contribution mix

Methods-led
32,549
Empirical
11,856
Reviews
7,722
Position pieces
850
Theoretical
228

Tone counts: 50,914 positive · 1,755 neutral · 536 negative.

Common problems researchers identify
3,843 papers · 7.2% of this field
  • Energy storage2,027 papers
  • Battery952 papers
  • Renewable energy900 papers
  • Electrolyte537 papers
  • Anode488 papers
  • Nanotechnology382 papers
  • Cathode363 papers
  • Lithium329 papers

Landmark: Pseudocapacitive oxide materials for high-rate electrochemical energy storage

Cautions
1,267 papers · 2.4% of this field
  • Energy storage453 papers
  • Renewable energy306 papers
  • Battery276 papers
  • Electrolyte155 papers
  • Electricity127 papers
  • Photovoltaic system112 papers
  • Grid103 papers
  • Anode99 papers

Landmark: Electrode Materials for Rechargeable Sodium‐Ion Batteries: Potential Alternatives to Current Lithium‐Ion Batteries

Opportunities
41,757 papers · 78.5% of this field
  • Energy storage17,247 papers
  • Renewable energy7,206 papers
  • Battery6,869 papers
  • Supercapacitor4,411 papers
  • Electrolyte4,207 papers
  • Electrochemistry3,929 papers
  • Photovoltaic system3,721 papers
  • Anode3,695 papers

Landmark: Hierarchical Control of Droop-Controlled AC and DC Microgrids—A General Approach Toward Standardization

Leading institutions

Chinese Academy of Sciences
132,184
Tsinghua University
73,943
Nanyang Technological University
61,056
University of California, Los Angeles
45,015
The University of Texas at Austin
43,827
Nankai University
35,758

Leading researchers

Bruce Dunn
29,397
Patrice Simon
22,591
Jean‐Marie Tarascon
20,526
Yury Gogotsi
19,210
Yang‐Kook Sun
15,104
Haresh Kamath
14,705
Arumugam Manthiram
14,093
Yi Cui
12,327

Highly cited breakthrough-labelled papers

  • Supercapacitor Devices Based on Graphene Materials2,527 citations
  • Graphene Anchored with Co<sub>3</sub>O<sub>4</sub> Nanoparticles as Anode of Lithium Ion Batteries with Enhanced Reversible Capacity and Cyclic Perfor2,431 citations
  • Challenges and Prospects of Lithium–Sulfur Batteries2,319 citations
  • Nitrogen-doped mesoporous carbon of extraordinary capacitance for electrochemical energy storage2,047 citations
  • Electrochemical Na Insertion and Solid Electrolyte Interphase for Hard‐Carbon Electrodes and Application to Na‐Ion Batteries2,043 citations

Common problems researchers identify

3,636 papers · 7 recurring themes
7 cards

Swipe or scroll horizontally to browse.

Energy Storage System ChallengesCommon problems researchers identify · 01

Energy Storage System Challenges

738 papers

20.3% of this theme group

Researchers highlight barriers and trade‑offs in deploying large‑scale storage for future power grids.

Energy storage (628) · Renewable energy (327) · Environmental economics (102) · Energy (111)

Comparative Review of Energy Storage Systems, Their Roles, and Impacts on Future Power Systems

A Comprehensive Review on Energy Storage Systems: Types, Comparison, Current Scenario, Applications, Barriers, and Potential Solutions, Poli

View research history
YearShare index
20221155.8
20231242.8
20241162.8
20251529.9
Battery Electrode Material LimitsCommon problems researchers identify · 02

Battery Electrode Material Limits

617 papers

17.0% of this theme group

Studies point to durability and performance gaps in anode and cathode designs for next‑generation batteries.

Anode (362) · Cathode (269) · Energy storage (330) · Battery (225)

Developing Cathode Materials for Aqueous Zinc Ion Batteries: Challenges and Practical Prospects

Advances of lithium-ion batteries anode materials—A review

View research history
YearShare index
2022478.0
2023477.3
2024418.7
2025508.1
Lithium and Flow Battery ConstraintsCommon problems researchers identify · 03

Lithium and Flow Battery Constraints

557 papers

15.3% of this theme group

Papers discuss capacity ceilings and safety concerns limiting lithium‑ion and flow battery adoption.

Battery (397) · Energy storage (351) · Lithium (99) · Flow battery (40)

Electrical energy storage for transportation—approaching the limits of, and going beyond, lithium-ion batteries

<scp>High‐Energy</scp> Lithium‐Ion Batteries: Recent Progress and a Promising Future in Applications

View research history
YearShare index
202265.6
202365.6
202468.2
202581.4
Electrolyte Engineering ObstaclesCommon problems researchers identify · 04

Electrolyte Engineering Obstacles

442 papers

12.2% of this theme group

Research flags instability and interfacial issues in high‑energy electrolyte formulations.

Electrolyte (356) · Fast ion conductor (49) · Lithium (115) · Electrochemistry (107)

Electrolyte-Additive-Driven Interfacial Engineering for High-Capacity Electrodes in Lithium-Ion Batteries: Promise and Challenges

Advanced Electrolyte Design for High‐Energy‐Density Li‐Metal Batteries under Practical Conditions

View research history
YearShare index
2022522.0
2023537.9
2024465.8
2025536.6
Renewable‑Grid Integration IssuesCommon problems researchers identify · 05

Renewable‑Grid Integration Issues

436 papers

12.0% of this theme group

Analyses reveal reliability and control difficulties when coupling solar, wind, and storage to existing grids.

Renewable energy (264) · Photovoltaic system (94) · Grid (74) · Electricity (73)

A Review of Hybrid Renewable/Alternative Energy Systems for Electric Power Generation: Configurations, Control, and Applications

Electric vehicles with renewables integration in electrical power systems: A review of technologies, uncertainties and optimization allocati

View research history
YearShare index
20221720.1
20231836.7
20241693.3
20252352.7
Supercapacitor Material BottlenecksCommon problems researchers identify · 06

Supercapacitor Material Bottlenecks

431 papers

11.9% of this theme group

Works identify scalability and performance limits of nanostructured electrodes for rapid energy storage.

Supercapacitor (235) · Nanotechnology (196) · Energy storage (329) · Electrochemical energy storage (78)

Flexible and Stretchable Energy Storage: Recent Advances and Future Perspectives

Review on Carbon Nanostructures for Supercapacitors: Cutting-Edge Energy Storage Applications and Perspectives

View research history
YearShare index
20224845.5
20234681.9
20244784.4
20253630.0
Hydrogen Storage Technical GapsCommon problems researchers identify · 07

Hydrogen Storage Technical Gaps

415 papers

11.4% of this theme group

Literature emphasizes efficiency, safety, and material challenges for hydrogen as a large‑scale energy carrier.

Hydrogen storage (134) · Hydrogen (80) · Thermal energy storage (83) · Energy storage (226)

Hydrogen Storage Technologies for Future Energy Systems

Chemical‐based Hydrogen Storage Systems: Recent Developments, Challenges, and Prospectives

View research history
YearShare index
2022306.6
2023332.4
2024334.3
2025353.7

Cautions

1,184 papers · 7 recurring themes
7 cards

Swipe or scroll horizontally to browse.

Economic Viability of StorageCautions · 01

Economic Viability of Storage

261 papers

22.0% of this theme group

Authors caution that cost‑benefit analyses often show marginal returns for storage‑enhanced renewable systems.

Energy storage (178) · Renewable energy (112) · Environmental economics (32) · Electricity (51)

Development of Energy Storage Systems for Power Network Reliability: A Review

A Quantitative Assessment of the Economic Viability of Photovoltaic Battery Energy Storage Systems

View research history
YearShare index
20221408.3
20231483.7
20241358.3
20251830.3
Grid Stability with RenewablesCautions · 02

Grid Stability with Renewables

216 papers

18.2% of this theme group

Studies warn of voltage and frequency stability risks when integrating high shares of variable renewables.

Renewable energy (125) · Photovoltaic system (63) · Grid (52) · Electricity (48)

Impacts of Renewable Energy Integration on Power System Stability

Integrating Variable Renewable Energy Into the Grid: Key Issues

View research history
YearShare index
20221720.1
20231836.7
20241693.3
20252352.7
Thermal Storage Material RisksCautions · 03

Thermal Storage Material Risks

201 papers

17.0% of this theme group

Research highlights degradation and heat‑loss concerns in long‑term latent‑heat storage solutions.

Thermal energy storage (79) · Energy storage (111) · Thermal (23) · Latent heat (12)

Sorption heat storage for long-term low-temperature applications: A review on the advancements at material and prototype scale

Review of Thermal Energy Storage Materials for Application in Large-Scale Integrated Energy Systems—Methodology for Matching Heat Storage So

View research history
YearShare index
2022180.5
2023189.0
2024192.5
2025241.3
Alternative Battery Chemistry ConcernsCautions · 04

Alternative Battery Chemistry Concerns

182 papers

15.4% of this theme group

Papers discuss unknown degradation pathways and safety issues for sodium‑ion and solid‑state batteries.

Anode (82) · Cathode (72) · Electrolyte (84) · Lithium (40)

Electrode Materials for Rechargeable Sodium‐Ion Batteries: Potential Alternatives to Current Lithium‐Ion Batteries

From Lithium‐Metal toward Anode‐Free Solid‐State Batteries: Current Developments, Issues, and Challenges

View research history
YearShare index
2022804.6
2023822.9
2024728.0
2025861.7
Nanostructured Supercapacitor SafetyCautions · 05

Nanostructured Supercapacitor Safety

142 papers

12.0% of this theme group

Works point to reliability and manufacturing challenges of emerging covalent‑organic frameworks and conductive gels.

Supercapacitor (38) · Capacitance (13) · Electrochemistry (30) · Nanotechnology (17)

Progress and Perspectives on Promising Covalent‐Organic Frameworks (COFs) Materials for Energy Storage Capacity

Conductive Gels for Energy Storage, Conversion, and Generation: Materials Design Strategies, Properties, and Applications

View research history
YearShare index
20221021.4
20231003.7
2024867.5
2025948.9
Battery Thermal Runaway RisksCautions · 06

Battery Thermal Runaway Risks

117 papers

9.9% of this theme group

Analyses focus on overheating scenarios and state‑of‑charge management to prevent catastrophic failures.

Battery (91) · Thermal runaway (12) · Energy storage (49) · State of charge (10)

Studying Abuse Testing on Lithium-Ion Battery Packaging for Energy Storage Systems

Recent Advances in the Development of Li‐Air Batteries, Experimental and Predictive Approaches – Prospective, Challenges, and Opportunities

View research history
YearShare index
202268.0
202372.5
202450.3
202572.1
Vanadium Redox Flow LimitationsCautions · 07

Vanadium Redox Flow Limitations

65 papers

5.5% of this theme group

Studies identify electrolyte imbalance and efficiency losses that hinder large‑scale flow battery deployment.

Flow battery (46) · Redox (33) · Vanadium (24) · Electrolyte (22)

Vanadium redox flow battery capacity loss mitigation strategy based on a comprehensive analysis of electrolyte imbalance effects

Experimental Study on the Effect of Operating Conditions on the Efficiency of Vanadium Redox Flow Battery

View research history
YearShare index
2022229.6
2023224.8
2024201.8
2025257.5

Opportunities

39,303 papers · 7 recurring themes
7 cards

Swipe or scroll horizontally to browse.

Hybrid Renewable‑Storage OptimizationOpportunities · 01

Hybrid Renewable‑Storage Optimization

1,378 papers

23.0% of this theme group

Research explores coordinated control of batteries with wind and solar to improve system efficiency.

Energy storage (1,114) · Renewable energy (356) · Energy (198) · Wind power (169)

Battery Energy Storage Optimization in Distribution Power Systems with Distributed Renewable Energy Resources

Design and Control of an Energy Storage System for Hybrid Renewable Energy Systems

View research history
YearShare index
20221241.7
20231328.6
20241279.1
20251709.0
Advanced Electrolyte‑Electrode DesignsOpportunities · 02

Advanced Electrolyte‑Electrode Designs

1,364 papers

22.7% of this theme group

Papers propose novel electrolyte compositions that enable robust, high‑performance aqueous battery chemistries.

Cathode (418) · Electrolyte (470) · Anode (402) · Electrochemistry (347)

Phosphated Electrolyte Enabling Dual Robust Electrode–Electrolyte Interfacial Reconstruction Toward Capable Zn Metal Batteries

Sustainable High‐Performance Aqueous Batteries Enabled by Optimizing Electrolyte Composition

View research history
YearShare index
2022804.6
2023822.9
2024728.0
2025861.7
High‑Dielectric Ceramic CapacitorsOpportunities · 03

High‑Dielectric Ceramic Capacitors

903 papers

15.1% of this theme group

Works develop ferroelectric nanocomposites offering increased energy density for compact storage devices.

Dielectric (122) · Energy storage (502) · Ceramic (64) · Ferroelectricity (43)

Development of <scp>PVDF</scp> / <scp>PMMA</scp> ‐Cu nanocomposites with enhanced dielectric properties and energy storage density for capac

Advanced carbon nanomaterials for high-performance energy storage technologies

View research history
YearShare index
2022256.3
2023249.6
2024190.2
2025138.3
Renewable‑Driven Power System PlanningOpportunities · 04

Renewable‑Driven Power System Planning

837 papers

13.9% of this theme group

Studies present models that integrate PV, wind, and storage to enhance reliability and reduce emissions.

Renewable energy (356) · Photovoltaic system (242) · Electricity (116) · Battery (193)

Optimizing Power System Reliability and Carbon Emissions With a Fuzzy Unit Commitment Model Incorporating Renewable Energy, Load Forecast Er

Distributed scheduling for multi-energy synergy system considering renewable energy generations and plug-in electric vehicles: A level-based

View research history
YearShare index
20221685.9
20231766.8
20241632.8
20252211.5
Graphene‑Based Supercapacitor HybridsOpportunities · 05

Graphene‑Based Supercapacitor Hybrids

604 papers

10.1% of this theme group

Research demonstrates ultrahigh energy storage using graphene‑enhanced electrodes in combined supercapacitor‑battery devices.

Supercapacitor (526) · Capacitance (273) · Electrode (176) · Graphene (76)

A high-performance supercapacitor-battery hybrid energy storage device based on graphene-enhanced electrode materials with ultrahigh energy

A review of supercapacitors: Materials, technology, challenges, and renewable energy applications

View research history
YearShare index
20221430.1
20231435.3
20241280.5
20251148.6
Microgrid Energy Management AdvancesOpportunities · 06

Microgrid Energy Management Advances

461 papers

7.7% of this theme group

Papers outline strategies for balancing distributed generation and storage within resilient local grids.

Microgrid (331) · Energy storage (270) · Renewable energy (179) · Distributed generation (56)

Power Management of Hybrid Microgrid with Energy Storage System

Capacity Optimization of Battery Energy Storage Systems in a Microgrid

View research history
YearShare index
20221086.5
20231156.0
20241104.3
20251546.0
Nano‑Enhanced Phase‑Change MaterialsOpportunities · 07

Nano‑Enhanced Phase‑Change Materials

453 papers

7.5% of this theme group

Investigations show improved thermal storage efficiency through hybrid nanomaterial phase‑change composites.

Thermal energy storage (267) · Thermal (84) · Phase-change material (65) · Latent heat (39)

Advances in nano-enhanced phase change materials and hybrid thermal energy storage systems: Paving the way for sustainable energy solutions

Improving the efficiency of thermal energy storage through the development and evaluation of hybrid nano-enhanced phase change materials

View research history
YearShare index
2022182.1
2023190.9
2024194.8
2025243.8

How this field compares with the research baseline

Orientation shares compared with 25,000 papers in the reference sample.

Research orientationThis fieldReference sample
Promising47.6%36.5%
Breakthrough30.9%26.5%
Descriptive8.1%17.7%
Problem-identifying7.0%9.9%
Comparative3.8%4.0%
Cautionary2.4%4.5%
Critical0.3%0.9%

Concerns receiving less research attention

Counts and shares refer to the stated research pool. A low count describes how much of that research is recorded here, not the absence of a real-world concern.

Concern / example paperPapersShareRaised as a problemWorldwide share
Energy & datacenter footprintEnergy storage in datacenters430.09%4 (9.3%)0.09%
Hardware, e-waste & supply chainLife Cycle Assessment and Sustainability of Energy Storage Options for Solar PV Technologies300.06%3 (10.0%)0.06%
Privacy & surveillanceA Resilient and Privacy-Preserving Energy Management Strategy for Networked Microgrids230.05%0 (0.0%)0.05%
Water useExperimental and Theoretical Analysis of Immersion Cooling of a Li-Ion Battery Module160.03%0 (0.0%)0.03%
Concentration of compute powerEnergy Storage Market Power Withholding Bounds in Real-time Markets150.03%2 (13.3%)0.03%
Bias & fairnessFlexibility at a cost: Industrial battery storage and the breakdown of grid fee fairness in Germany80.02%1 (12.5%)0.02%
Safety & misuseCyber Resilience of Battery Energy Storage System Scheduling under Adversarial Attack on Load Forecasting50.01%1 (20.0%)0.01%
Carbon & emissions of computeA multi strategy optimization framework using AI digital twins for smart grid carbon emission reduction20.0%0 (0.0%)0.0%
Labour & data work00.0%0 (%)0.0%

Institution and researcher rankings use citations to their covered work. Research scope: worldwide. This may be broader than the company geography.

GEOGRAPHIC FOOTPRINT

Where companies are based

Company counts, hiring and disclosed funding across the recorded hubs.

Expand panel +
8 cards

Swipe or scroll horizontally to browse.

UNDERSTAND THE LANDSCAPE

Energy Tech in Sweden: key questions

Clear definitions for making better comparisons.

What does this landscape measure?

It measures the tracked company ecosystem, recorded funding, hiring and other available evidence. It is not a market-size estimate.

Can segment counts be added together?

No. A company can belong to several segments, so segment counts and funding can overlap.

What does a missing figure mean?

A dash or unavailable panel means the current reviewed source snapshot does not support that figure.

KEEP EXPLORING

Put Sweden in context

All landscapes ↗

Company ecosystem snapshot: 3 September 2026. Funding is recorded in USD; filed accounts retain their stated currency and reporting basis. Each section identifies its own coverage. The news and research behind these sections is explorable in Prism.

Canonical landscape ↗
Coming soon