Does NIS2 apply to every energy company?

No. It depends on your energy activity, company size and national rules. Authorities can also name specific companies, so we check your services against them.

Which energy activities does NIS2 list?

Electricity, district heating and cooling, oil, gas and hydrogen. Being listed is only the first test, because size and national rules also count.

How fast must an energy company report a serious incident under NIS2?

An early warning within 24 hours, a notification within 72 hours and a final report, generally within one month. National rules set where the reports go.

Can plant equipment use the same safeguards as office computers?

Sometimes. Where updates are not possible, you can separate networks, limit access and watch it instead, and record the risk that remains.

Which suppliers should an energy security review include?

Those that can affect essential services or recovery, such as remote maintenance engineers and specialist equipment suppliers.

Will a security review disrupt our plant?

We plan the assessment with your engineers to minimise disruption, starting with documents, interviews and configuration reviews. Active testing only takes place with written authorisation, agreed safeguards and a suitable operating window.

Energy and utilities

Energy cybersecurity and NIS2, planned around your operations

Protect the systems your energy operations depend on. We help assess IT and industrial-system risks, implement NIS2 requirements and plan security improvements with your engineering, IT and management teams.

Plan an energy security review Find your energy activity

Energy companies we work with

We have carried out 100+ audits of energy sites, including wind, solar, hydro and bioenergy plants.

Relevant regulations and standards

Rules by energy activity

Your energy activity, company size and country decide whether NIS2 applies. IEC 62443 is voluntary and has separate parts for site owners, system builders and equipment suppliers.

Your business	Rules that usually apply	Where to start
Electricity, gas, oil, hydrogen or district heating company	NIS2 can apply, depending on your activity, size and national rules. National authorities can also name specific companies.	NIS2 Compliance
Operator of plants, grids or other industrial sites	IEC 62443 covers operational technology (OT), the systems that run physical processes. NIS2 measures must still fit equipment that cannot stop.	Cybersecurity Audit & Risk Assessment
Equipment maker or system builder	IEC 62443 has parts written for your role. The Cyber Resilience Act can apply to connected products you sell in the EU.	The free CRA check
Maintenance or service provider with remote access	Energy customers under NIS2 must check the security of suppliers they depend on, so expect their questions.	Cybersecurity Audit & Risk Assessment

ISO 27001 can organise security across your whole company. IEC 62443 adds practices for the systems that run your sites.

Common challenges

Security changes must fit site operations

Office and plant systems connect
You need to know which office connections could affect equipment and the service it supports.
Maintenance suppliers log in remotely
External engineers need access that is limited, watched and reviewed when their work changes.
Equipment cannot take routine updates
Where an update or restart would interrupt safe operation, you need other safeguards.
Recovery involves several teams
Engineering and IT need to practise decisions about restoring services together.

How we help

Changes planned around plant limits

Common questions

Free 30-minute call

Plan security around your energy operations

On a free 30-minute call, we go through your sites, equipment limits and outside engineers, and agree where a review helps first.

Plan an energy security review hello@guardera.tech