Nya Skolan, Trollhättan, Pettersberg

Compulsory schoolYear 1–9Operator: Nya Skolan Sverige AB · Trollhättan, Västra Götalands County

Headmaster: Fredrik Hallström

Compared to all compulsory schools nationally

Skolkoll Score 64 out of 100. The scale goes from 0 (lowest) to 100 (highest). 50 is the average. Better than 74% of Sweden’s compulsory schools.

A composite of five open data sources — a starting point, not a grade.

Data coverageHigh5/5

Why this score?

Skolkoll score is Skolkoll's composite indicator based on available data sources. It is not an official quality measure and should be read together with the underlying data.

5 of 5 score dimensions have school-specific data.

When school-specific data is missing for a dimension, the neutral value 50 is used. That does not automatically lower the school, but it makes the score less informative.

What is the Skolkoll Score?

Nya Skolan, Trollhättan, Pettersberg is a medium-sized group-operated compulsory school with 250 pupils.
Nya Skolan, Trollhättan, Pettersberg is a medium-sized group-operated compulsory school with 250 pupils. The share of qualified teachers (68%) is below the national average of 72%.

250
Pupils
Municipality: 6,390
High reliability
68%
Qualified teachers
Municipality: 73% · Sweden: 72%
High reliability
245.4
Year 9 merit value
Municipality: 229.1 · Sweden: 227.7
Moderate reliability
11.9
Pupils per teacher
Municipality: 13.6 · Sweden: 12.0
High reliability
140,120 SEK
Cost per pupil (municipal avg.)
Sweden: 144,179 SEK
Limited history

Skip table of contents

The Data view is optimised for in-depth analysis: history, sources, methodology and export. For a summary interpretation, see Overview.

Key figures over time

Summary of the central metrics for the most recent 5 academic years. Visit each source for the full time series.

Academic year	Pupils	Qualified teachers	Avg. grade	Cost/pupil (municipality)
2025/26	250	68%	—	—
2024/25	—	53%	245.4	—
2023/24	—	50%	199.5	—
2022/23	—	52%	217.8	—
2021/22	—	55%	213.0	—

Source: Skolverket + Kolada (cost is municipal average, not school-specific).

School history

Events from Skolverket's unit register, Skolinspektionen inspections, group history, and locally-computed statistical signals are shown in one chronology. Each row states its row type, origin and data trust so authority data is not mixed up with Skolkoll's own signals.

School history

3 priority events out of 33 total: Authority record · Operator name changed; Authority record · Operator name changed; Authority decision · Injunction.

Important6Register changes20Context7Signals6

Showing all 33 events. Enable JavaScript to filter the timeline.

Quick overview

Choose which layers to show in the same date-ordered timeline.

2026
2026
Computed signalSignalSkolverket
Qualified teachers changed unusually much
Qualified teachers increased by 15 pp from 53% to 68% between 2025 and 2026. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2026
Statistics vintageStatisticsSkolverket
Pupil count: statistics vintage available
Pupil count is available for 2026. This is data availability, not a school event.
high reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
Only the year is known, so the event is placed at year level.
2026
Statistics vintageStatisticsSkolverket
Pupils per teacher: statistics vintage available
Pupils per teacher is available for 2026. This is data availability, not a school event.
high reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
Only the year is known, so the event is placed at year level.
2026
Statistics vintageStatisticsSkolverket
Qualified teachers: statistics vintage available
Qualified teachers is available for 2026. This is data availability, not a school event.
high reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
Only the year is known, so the event is placed at year level.
2026-05-21
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2026-05-20
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2025
2025
Computed signalSignalSkolverket
Merit rating changed unusually much
Merit rating increased by 45.9 points from 199.5 to 245.4 between 2024 and 2025. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2025
Computed signalSignalSkolverket
Upper-secondary eligibility changed unusually much
Upper-secondary eligibility increased by 37 pp from 63% to 100% between 2024 and 2025. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2025
Statistics vintageStatisticsSkolverket
Merit rating: statistics vintage available
Merit rating is available for 2025. This is data availability, not a school event.
high reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
Only the year is known, so the event is placed at year level.
2025
Statistics vintageStatisticsSkolverket
Upper-secondary eligibility: statistics vintage available
Upper-secondary eligibility is available for 2025. This is data availability, not a school event.
high reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
Only the year is known, so the event is placed at year level.
2025-05-13
Authority recordOperatorSkolverket
Operator name changed
From "NYA SKOLAN TROLLHÄTTAN AKTIEBOLAG" to "Nya Skolan Sverige AB".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2025-03-10
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2025-03-04
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2024
2024
Computed signalSignalSkolverket
Merit rating changed unusually much
Merit rating decreased by 18.3 points from 217.8 to 199.5 between 2023 and 2024. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2024
Computed signalSignalSkolverket
Upper-secondary eligibility changed unusually much
Upper-secondary eligibility decreased by 19 pp from 82% to 63% between 2023 and 2024. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2023
2023-04-20
Authority recordNameSkolverket
Operating name started being reported
Skolverket started reporting the operating name "Nya Skolan, Trollhättan, Pettersberg". This is source history, not a confirmed name change.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2023-01-25
Authority decisionInspectionSwedish Schools Inspectorate
Dismissed
Decision without recorded deficiencies. Document title: Riktad tillsyn Uppföljning skolbeslut Grundskolan Trollhättan Nya Skolan, Trollhättan, Pettersberg, 2023 (pdf, 194 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2022
2022
Computed signalSignalSkolverket
Upper-secondary eligibility changed unusually much
Upper-secondary eligibility decreased by 13 pp from 100% to 87% between 2021 and 2022. This is a calculated signal, not a register decision.
medium reliabilityknown year
Show detailsHide details
Source
Skolverket
Reliability
Medium: the information is derived from several sources and should be read as context.
What the date means
Only the year is known, so the event is placed at year level.
2021
2021-08-20
Authority recordNameSkolverket
School name changed
From "Nya Skolan, Trollhättan" to "Nya Skolan, Trollhättan, Pettersberg".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2021-06-06
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2020
2020-09-03
Authority decisionInspectionSwedish Schools Inspectorate
Inspection decision published
Inspection or review decision registered. Document title: Regelb. tillsyn Uppföljning beslut Grundskolan Trollhättan Nya Skolan, Trollhättan, 2020 (pdf, 1740 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2020-06-01
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2020-02-03
Authority decisionInspectionSwedish Schools Inspectorate
Injunction
Decision includes injunction, fine or serious deficiency. Document title: Regelb. tillsyn Uppföljning beslut Grundskolan Trollhättan Nya Skolan, Trollhättan, 2019 (pdf, 4172 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2020-02-03
Authority decisionInspectionSwedish Schools Inspectorate
Inspection decision published
Inspection or review decision registered. Document title: Regelb. tillsyn Uppföljning beslut Grundskolan Trollhättan Nya Skolan, Trollhättan, 2019 (pdf, 647 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2018
2018-06-13
Authority decisionInspectionSwedish Schools Inspectorate
Injunction
Decision includes injunction, fine or serious deficiency. Document title: Regelb. tillsyn Uppföljning beslut Trollhättan Nya Skolan, Trollhättan, 2018 (pdf, 2282 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2017
2017-12-21
Authority decisionInspectionSwedish Schools Inspectorate
Injunction
Decision includes injunction, fine or serious deficiency. Document title: Regelb. tillsyn Skolbeslut Trollhättan Nya Skolan, Trollhättan, 2017 (pdf, 2110 kB).
high reliabilityknown date
Read decision (PDF) ↗
Show detailsHide details
Source
Swedish Schools Inspectorate
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.
2017-06-12
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2016
2016-08-01
Authority recordProgrammesSkolverket
School types changed
From "FKLASS, FTH, GR, OPPFTH" to "FKLASS, FTH, GR".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2016-07-11
Authority recordOperatorSkolverket
Operator name changed
From "Nya Skolan Trollhättan AB" to "NYA SKOLAN TROLLHÄTTAN AKTIEBOLAG".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2014
2014-09-05
Authority recordContactSkolverket
Contact details changed
From "url: http://www.nyaskolan.se, email: info@nyaskolan.se, phone: 0520-520 219" to "url: http://www.nyaskolan.se, email: info@nyaskolan.se, phone: 0520-520200".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2014-07-04
Authority recordContactSkolverket
Contact details changed
From "url: http://www.nyaskolan.se, email: info@nyaskolan.se, phone: 0520-520200" to "url: http://www.nyaskolan.se, email: info@nyaskolan.se, phone: 0520-520 219".
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2014-07-04
Authority recordHeadmasterSkolverket
Head changed
The principal changed in the register. The name is not shown in history.
high reliabilityfound in data check
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date shows when Skolkoll found the change in a data check. The change may have happened earlier.
2013
2013-10-01
Authority recordLifecycleSkolverket
School started
Skolverket records 2013-10-01 as the school's start date.
high reliabilityknown date
Show detailsHide details
Source
Skolverket
Reliability
High: the information comes from an authority source or a matched authority decision.
What the date means
The date is a known decision, publication or register date.

Register sources: Skolverket (fetched 5 Jul 2026), the Swedish Schools Inspectorate (fetched 3 Jul 2026) and group lookup from Bolagsverket/Skolkoll. Computed signals are marked separately and use year-level date precision.

Does something look wrong? Report an error in the history.

Quality data (Skolverket Statistical Database)

Costs, personnel data and school survey results from Skolverket's quality system.

Personnel

Permanently employed: 78.8% Limited history
Senior teachers (förstelärare): —
Teacher turnover: 12.1%
Pupils per counsellor: 781.5
Certified in subject(s): 49.8% (licensed and certified for teaching subject)
Teachers (FTE): 34.8
Share of female teachers: 60.5%

School survey (agree, %)

Safety, year 5: 92%
Safety, year 8: 87% Limited history
Study peace, year 5: 58%
Study peace, year 8: 60% Limited history
Anti-bullying, year 5: 76%
Anti-bullying, year 8: 70%
Stimulation, year 5: 77%
Stimulation, year 8: 60%

Source: Skolverket Statistical Database (Statistikdatabasen). Updated annually.

Operator finances

Operator finances — Nya Skolan Sverige AB

Key figures from the operator's most recent annual report (period ending 2025-06-30).

Figures are for the operator (Nya Skolan Sverige AB), which may run several schools — not for this individual school.

Revenue102,691 TSEK

Net income-20 TSEK

Equity ratio28%

Employees117

Source: Bolagsverket (annual report, period ending 2025-06-30).

Demography

Pupil forecast — Trollhättan

Number of children in the age group ages 6–15 in the municipality, according to SCB's forecast.

Forecast covers all children in this age group across the entire municipality — not just this school's catchment. Local enrolment depends on school choice and migration patterns.

ages 6–15 (2025)7,026

ages 6–15 (2030)6,546

ages 6–15 (2035)6,014

Change 2025→2030-6.8%

Source: SCB (population forecast for Trollhättan municipality, by school-form age group).

Trollhättan municipality — history (school form: compulsory school)

Municipality-aggregated key figures from Kolada over the most recent 5 years. Shown as municipality average — not school-specific values — because Kolada reports financial and pedagogical metrics at school-form level per municipality.

Measure	2025	2024	2023	2022	2021
Pupils	6,250	6,254	6,311	6,375	6,415
Merit value yr 9	227.3	222.9	229.5	229.3	224.9
Eligibility for upper secondary	71.4%	68.4%	68.8%	69.9%	69.4%
Pupils per teacher	12.4	12.2	12.3	11.8	12.2
Cost per pupil	140,120 SEK	142,196 SEK	135,819 SEK	126,989 SEK	121,118 SEK

Source: Kolada (Swedish council for municipal analyses).

Data sources

Skolkoll is built exclusively on public data sources. Each row below shows the source, fetch date, and which metrics come from it.

How sources are labelled

Skolkoll separates official statistics, its own processing, and information from a school or provider.

Official/statistical source: Data from an authority, municipality or other published statistical source. Date and source should be shown where possible.Affects score where the method says so
Skolkoll processing: Calculated, normalised or assembled by Skolkoll from published sources. The method should be documented.Affects score where the method says so
School-reported information: Information from the school or provider. It is shown separately and does not affect ranking or Skolkoll score without a published methodology decision.Does not affect score/ranking
Editorial/method text: Explanations, checklists and interpretation support from Skolkoll. This supports further review; it is not an official decision.Does not affect score/ranking

Swedish National Agency for Education (Skolverket)Fetched 5 Jul 2026
Pupil count, qualifications, grades, teacher numbers per school
Skolverket SALSAFetched 3 Jul 2026
Model-based expected results based on pupil composition
Swedish Schools Inspectorate (Skolinspektionen)Fetched 3 Jul 2026
Inspection decisions, remarks, complaints
Statistics Sweden (SCB)Fetched Not available
Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Population and economic data
KoladaFetched 3 Jul 2026
Municipal key figures, financial data per school form
LantmäterietFetched Not available
Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Property register, buildings, orthophotos (CC BY 4.0)

Methodology and definitions

Skolkoll methodology (overview) — how data is fetched, validated and displayed.
Skolkoll Score — calculation, weighting, interpretation guide.
SALSA model — what it measures and what it doesn't.
Qualified teachers — definition and data source.
Corrections policy — how errors are fixed and documented.

Export

Download data for your own analysis. Files are CSV with UTF-8 encoding.

Open data — all schools

Nya Skolan, Trollhättan, Pettersberg

Key figures over time

School history

Quick overview

Qualified teachers changed unusually much

Pupil count: statistics vintage available

Pupils per teacher: statistics vintage available

Qualified teachers: statistics vintage available

Head changed

Head changed

Merit rating changed unusually much

Upper-secondary eligibility changed unusually much

Merit rating: statistics vintage available

Upper-secondary eligibility: statistics vintage available

Operator name changed

Head changed

Head changed

Merit rating changed unusually much

Upper-secondary eligibility changed unusually much

Operating name started being reported

Dismissed

Upper-secondary eligibility changed unusually much

School name changed

Head changed

Inspection decision published

Head changed

Injunction

Inspection decision published

Injunction

Injunction

Head changed

School types changed

Operator name changed

Contact details changed

Contact details changed

Head changed

School started

Quality data (Skolverket Statistical Database)

Personnel

School survey (agree, %)

Trollhättan municipality — history (school form: compulsory school)

Data sources

Methodology and definitions

Export