Private Wire Connections: What They Are and When They Make Sense

Energy Broker

2 April 2026

As energy costs rise and businesses are looking for greater control over your energy supply, private wire connections are becoming an increasingly attractive option.

A private wire allows electricity to be supplied directly from a generator to a business site, without passing through the public electricity network. For organisations with high energy demand, renewable generation projects or long-term sustainability goals, private wire connections can offer:

Reduced energy costs
Improved price certainty
Lower exposure to network charges
Enhanced energy resilience

Understanding how private wire works and when it is viable is key to assessing whether it fits within your energy strategy.

What Is a Private Wire Connection?

A private wire connection is a direct physical link between an electricity generator and a consumer, bypassing the public distribution network. This means electricity is:

Generated locally (e.g. solar, wind, CHP)
Delivered directly to the site via dedicated infrastructure
Not subject to many of the standard network charges
Industrial and manufacturing sites
Commercial developments
Data centres
Renewable energy projects

How Private Wire Works

In a typical private wire setup:

A generator produces electricity (onsite or nearby)
A dedicated cable connects the generator to the end user
Electricity flows directly to the site without using the public grid

In some cases, the site may still maintain a grid connection for:

Backup supply
Additional demand
Export of excess energy

This creates a hybrid energy model combining private supply with grid flexibility.

Why Businesses Are Considering Private Wire

Private wire is gaining attention due to several key drivers.

Rising Energy Costs

Avoiding certain network and non-commodity charges can reduce overall energy costs.

Net Zero & Sustainability Goals

Private wire enables direct use of renewable energy, supporting carbon reduction and ESG commitments.

Energy Price Certainty

Long-term agreements with generators can provide stable and predictable pricing.

Grid Capacity Constraints

In areas where grid capacity is limited, private wire can offer an alternative route to securing energy supply.

Key Benefits of Private Wire Connections

Reduced Network Charges

By bypassing the public network, some transmission and distribution costs can be avoided.

Long-Term Cost Control

Private agreements can offer stable pricing over extended periods.

Direct Renewable Supply

Electricity can be sourced directly from renewable generation, improving sustainability credentials.

Improved Energy Resilience & Flexibility

Local supply reduces reliance on the wider grid, whilst private wire can be combined with grid supply, battery storage or demand response strategies.

Challenges and Considerations

While private wire offers clear benefits, it is not suitable for every project.

Infrastructure Costs

Installing dedicated infrastructure can require significant upfront investment.

Distance Between Generation and Demand

Private wire is most viable when the generator is close to the consumption site.

Regulatory & Commercial Complexity

Contracts, ownership structures and regulatory considerations can be complex.

Grid Capacity Constraints

In areas where grid capacity is limited, private wire can offer an alternative route to securing energy supply.

Private Wire vs Power Purchase Agreements (PPA)

Private wire is often compared with corporate PPAs. Both models can play a role in renewable energy strategy, depending on site location and business objectives.

Private Wire

Physical connection
Direct energy supply
Reduced network charges

PPA (Sleeved or Virtual)

Financial agreement
Energy supplied via the grid
Still subject to network charges

When Does Private Wire Make Sense?

Private wire is typically suitable where:

There is high and consistent energy demand
A renewable generator is located nearby
Long-term cost control is a priority
Grid capacity is constrained
Sustainability targets require direct renewable sourcing

Each project requires a detailed feasibility assessment.

How Nationwide Utilities Supports Private Wire Projects

Step 1: Feasibility Assessment

We assess site demand, generation opportunities and commercial viability.

Step 2: Network & Infrastructure Planning

We design the connection strategy and identify infrastructure requirements.

Step 3: Commercial Structuring

We develop agreements between generators and consumers, including pricing and ownership models.

Step 4: Supplier & Contractor Management

We source and manage contractors to deliver infrastructure projects.

Frequently Asked Questions

Private wire connectors are dedicated, direct electrical connections between a power generation source - such as solar panels, wind turbines, or a Combined Heat and Power (CHP) plant - and a specific consumer, bypassing the public, national utility grid.

What is a private wire connection?

A private wire connection is a direct electricity link between a generator and a consumer, bypassing the public grid.

Does private wire reduce energy costs?

Yes. It can reduce costs by avoiding certain network charges and securing long-term pricing agreements.

Can private wire be used with renewable energy?

Yes. Private wire is commonly used to connect renewable generation such as solar or wind directly to a site.

Is private wire suitable for all businesses?

No. It is typically suited to organisations with high energy demand and access to nearby generation.

Do I still need a grid connection?

In most cases, yes. Businesses often retain a grid connection for backup supply and additional demand.

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