PROJECT AREAS

As the energy landscape becomes more complex, Stag Energy brings experience and understanding to the evolving landscape of energy infrastructure:

Solar

Stag Energy provides a development and management capability to deliver high-efficiency solutions to the solar sector.

Reserve Power Generation

As the energy sector transitions to a low carbon future the role of gas reserve power capacity continues to play an important role in providing system support and balancing services.

Storage

With knowledge and experience in power generation, transmission, and storage, Stag Energy is well placed to meet Transmission system balancing requirements such as inertia and boundary constraints.

Transmission Systems & Stability

With knowledge and experience in power generation, transmission, and storage, Stag Energy is well placed to meet Transmission system balancing requirements such as inertia and boundary constraints.

Project Management

PROJECTS AND PARTNERS

Gateway: The Potential to transform UK Gas Storage

Gateway Storage Company Ltd is a joint venture between Lundin Group and Stag Energy that has developed plans to build an offshore underground gas storage facility in the East Irish Sea.  A lease agreement is held with Crown Estate over the offshore area and comprehensive subsurface analysis has been undertaken to detail the vast storage potential in this natural salt structure below the seabed.  Storage caverns will be created to enable gas to be delivered, stored, and then returned to the UK’s national transmission systems.  As the UK transitions to a low carbon economy and hydrogen becomes an increasingly important part of the global energy mix, salt caverns are the most suitable medium to provide gas storage and system security.

Design and technical work has taken place over a period of years, with extensive geological and technical surveys undertaken including a complete core of the salt formation (~600m or 2,000 ft) at a depth of ~750m beneath the seabed, along with comprehensive seismic data gathering and analysis. Technical input and expertise has been provided from, amongst others, Petrofac, Amec, PB Energy Storage Services and the British Geological Survey.  The work has confirmed the ideal nature of the salt for cavern construction, The British Geological Survey endorsed the characteristics of low permeability and low insolubles at this location as having the best characteristics to be found in Britain to support the development of offshore salt cavern gas storage facilities.

Salt cavern technology is well proven and has been used for storing gas and liquids for many years. Gateway has the potential for the development of up to 40 caverns with an average spatial volume of approximately one million cubic metres – each with the capability of storing around 75 million cubic metres of working gas.  The scale of the Gateway prospect provides the potential to support the development of the North West Energy and Hydrogen Cluster (https://northwestcluster.co.uk/) and would provide the necessary security to manage the intermittent nature of renewable energy sources.

The Gateway UK gas storage project is managed by Stag Energy Development Company Ltd.

Land requirements and terms of agreement

CURRENT INIATIVES

Solar Energy – Land Sought

Land requirements and terms of agreement

Stag Energy is seeking 50-200 acres of land for development of solar photovoltaic schemes, located in close proximity to distribution network substations.

A 3-year option agreement is sought allowing the necessary consents and commercial agreements to be secured. An option fee will be paid annually in advance. The option agreement will enable Stag Energy to purchase or lease the site for a term of 30 years.

Stag Energy will pay all reasonable professional fees for negotiation of agreements.

Environmental impacts will be thoroughly examined during the planning process.

Benefits to landowner

The land will remain available for agricultural activity during the option period, and for limited grazing and ecological enhancement during the lease period.

Lease payments will be backed by a creditworthy counterparty.

Construction will be undertaken by a proven contractor and will last no more than 6 months on site.

The equipment emits no noise or emissions, and are less than 3m tall at the highest point of the PV panels.

The land will be returned to its original condition at the end of the operational life.

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Supporting the UK’s net zero emissions target

Solar PV technology is well established in the UK and has an important role to play in the decarbonisation of the UK power system.

The cost of solar PV technology has been falling, which enables solar energy schemes to proceed without public support or subsidy.

A solar scheme can be enhanced by co-locating battery storage that can make the scheme more flexible and support the electricity network.

Further information

If you would like any further information or wish to discuss the prospect of taking a project forward with Stag Energy, please contact Nick Johnson (njohnson@stagenergy.com) or Joe Grant (jgrant@stagenergy.com) or call on 0131 550 3380

National Grid Stabilisation and Energy Storage – Land sought

Land requirements and terms of agreement
  • Stag Energy is seeking 5-8 acres of land for development, located adjacent or in close proximity to National Grid substations
  • Initially, a three year option agreement is sought allowing necessary consents and commercial agreements to be secured
  • The option agreement will enable Stag Energy to purchase or lease the site for a term of 30 years
  • During the option period agricultural activity can continue and an option fee will be paid annually in advance
  • Stag Energy will pay all reasonable professional fees for negotiation of agreements
  • Once constructed, the development will have the appearance of an agricultural unit or a bank of steel containers
  • Environmental impacts will be thoroughly examined during the planning process and are expected to be negligible
New infrastructure required to support Scottish renewable industry
  • Stag Energy is looking for development sites adjacent to substations for the construction of battery storage projects which can take power from the grid at times of high renewable generation and release it for use at other times. These projects may also be combined with grid stabilisation equipment
  • Scotland currently has approx. 11 GW of renewable electricity generation capacity and increasingly there are times when there is not enough demand or export capacity to consume this volume of power
  • Large scale energy storage facilities are required in Scotland to a) reduce the current payments made to curtail renewable generation at times of high output and low demand and b) allow further development of renewable energy which is crucial for the Scottish economy and the transition to net zero carbon emissions
  • New plant is also required to help stabilise the National Grid – these services have previously been provided by large scale gas and coal plant which are now closing

Further information

If you would like any further information or wish to discuss the prospect of taking a project forward with Stag Energy, please contact Adam Heffill (aheffill@stagenergy.com) or Chris McKerrow (cmckerrow@stagenergy.com) or call on 0131 550 3380.