How are long-term service programs different from time-based maintenance?

Long-term service progams combines condition monitoring, planned spares, and modernization to prevent failures and extend life, rather than servicing on rigid intervals alone.

Which assets are in scope?

Substations, transformers, switchgear and transmission solutions (incl. HVDC and FACTS), with options for cyber security and performance KPIs.

Do long-term service programs lock customers into a fixed scope?

No. Scope and commitments (availability, mobilization, pricing) are defined and can be adapted over the lifecycle, providing budget predictability and measurable outcomes.

How do digital services fit into long-term service programs?

Long-term service programs integrate digital diagnostics and remote capabilities to enhance grid operations and complement existing Digital Grid solutions.

What experience does Siemens Energy have with these programs?

Siemens Energy has extensive long-term service program experience and fleet coverage across regions and technologies (materials available upon request).

Long-term service agreements & programs for power grids

Outage risk: unplanned outages drive very high cost per hour and reputational risk for utilities and data centers.
Asset aging: transformers and switchgear are older, with long replacement lead times, making lifecycle extension critical.
Regulatory pressure: decarbonization, reliability indices, and safety compliance increase the need for structured maintenance programs.
Data center boom: hyperscale facilities require 24/7 availability, stringent service level agreements (SLAs), and rapid recovery times from the surrounding grid.

Higher availability and reliability of critical grid assets.
Lower OPEX and reduced fleet risk via planned, condition‑based maintenance.
Predictable multi‑year maintenance budgets and risk‑sharing models.
Faster fault diagnostics and response, especially for data‑center‑critical substations.
Extended lifetime of transformers, switchgear, HVDC and FACTS, deferring CAPEX.

Outcome	Typical improvement (exemplary)	Grid impact (exemplary)
Unplanned outages	Up to -99,98 %	Multi-million annual savings
Asset lifetime extension	Up to +20 years	Deferred large-scale replacement
OPEX reduction	Up to 30 % over 10-15 years	Predictable long-term budgeting
Response time	From days to hours	SLA compliance for data centers, utilities and other customers
Carbon footprint	Up to -15 %	Supports sustainability targets

Transmission System Operators (TSOs) & utilities: fleet‑wide transmission service programs across large territories.
Renewable energy hubs: integration of offshore wind, solar, and storage into transmission networks with stability and availability KPIs.
Heavy industries like metals & mining: minimizing production loss from power quality events and outages.
Data centers: Service level agreement (SLA)‑driven long-term service programs around grid connection, redundancy planning, and ultra‑fast response.

OEM expertise in transformers, switchgear, substations, HVDC, FACTS and their operation in complex grids
Integrated digital monitoring, diagnostics, and remote support through Siemens Energy’s Digital Grid portfolio
Global footprint with local power transmission service teams and spares hubs for fast on‑site execution
Proven long‑term agreements across regions and technologies; internal references and case evidence available for customer discussions
Commitment to sustainability (e.g., SF₆‑free alternatives, efficiency improvements, lifecycle CO₂ reduction)

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Long-term service programs for power grids

Key benefits of long-term service programs

Stay on your mission, we'll power the rest.

Maximize grid availability. Opimize performance. Extend asset lifetime

Why do modern grids require long-term service programs?

What is a long-term service program for power grids?

Strategic outcomes: Beyond basic grid maintenance

Industries served: Specialized long-term service agreements for global power

Why Siemens Energy for grid asset lifecycle management services?

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Get answers: FAQs on long-term service programs for power grids