Energy can be stored in batteries for use when needed. BESS offer a sophisticated solution that enables renewable energy to be stored in various forms and accessed later. Since energy supply can be disrupted by factors such as weather conditions, power outages, or geopolitical events, battery systems play a crucial role in ensuring a stable and continuous power supply for utilities and the grid.
About the portfolio
Assets include operating onshore wind farms in the UK.

Investment attractions
- Merchant revenues

First investment
2021

Potential risks
- Merchant nature of trading revenue streams
- Evolving market and increased competition
Our battery assets
West Gourdie Battery Storage
On 3 March 2021, FGEN announced the acquisition of a 100% equity stake in Gigabox South Road Limited (“GSRL”). GSRL holds the development rights to construct the West Gourdie project, a 50MW lithium-ion battery energy storage plant based in Dundee, UK.
The West Gourdie project became operational in March 2023.
Storage projects provide vital support to the National Grid, by reducing system imbalance and enhancing the grid’s ability to harness a greater level of intermittent renewables on the system. The West Gourdie project will be connected to Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The project will provide stability to the local network either through direct provision of balancing services to the National Grid, or by reducing volatility on the system via wholesale trading in the wholesale power markets and/or the Balancing Mechanism, a tool used by the National Grid to balance supply and demand in real time .
This acquisition represents FGEN’s third investment into battery storage systems, adding to the two co-located batteries that the Company owns as part of its run-of-river hydro portfolio.
Clayfords Battery Storage
Clayfords Energy Storage Limited holds the development rights to construct a 50MW lithium-ion battery energy storage plant based in Buchan, Aberdeenshire, UK.
The project is fully consented and construction ready. The project will be connected to the Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection.
Lunanhead battery storage (Gigabox No 4)
Gigabox No 4 holds the development rights to construct a 49.9MW lithium-ion battery energy storage plant based in Angus, Scotland.
The project will be connected to the Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The connection will be initially with a capacity of 45MW, increasing to the full 49.9MW capacity by early 2025.
Sandridge Battery Storage
In May 2021 FGEN announced the acquisition of a 50% equity stake in Sandridge Battery Storage Limited (“SBSL”). SBSL holds the development rights to construct the Sandridge Battery Storage project, a 50MW lithium-ion battery energy storage plant based in Melksham in Wiltshire, UK. The investment has been made alongside Foresight Solar Fund Limited.
The project will be connected to Southern Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The project will provide stability to the grid through provision of Dynamic Containment, or by reducing volatility on the system via wholesale trading in the wholesale power markets and/or the Balancing Mechanism, a tool used by the National Grid to balance supply and demand in real time.
West Gourdie Battery Storage
On 3 March 2021, FGEN announced the acquisition of a 100% equity stake in Gigabox South Road Limited (“GSRL”). GSRL holds the development rights to construct the West Gourdie project, a 50MW lithium-ion battery energy storage plant based in Dundee, UK.
The West Gourdie project became operational in March 2023.
Storage projects provide vital support to the National Grid, by reducing system imbalance and enhancing the grid’s ability to harness a greater level of intermittent renewables on the system. The West Gourdie project will be connected to Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The project will provide stability to the local network either through direct provision of balancing services to the National Grid, or by reducing volatility on the system via wholesale trading in the wholesale power markets and/or the Balancing Mechanism, a tool used by the National Grid to balance supply and demand in real time .
This acquisition represents FGEN’s third investment into battery storage systems, adding to the two co-located batteries that the Company owns as part of its run-of-river hydro portfolio.
Clayfords Battery Storage
Clayfords Energy Storage Limited holds the development rights to construct a 50MW lithium-ion battery energy storage plant based in Buchan, Aberdeenshire, UK.
The project is fully consented and construction ready. The project will be connected to the Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection.
Lunanhead battery storage (Gigabox No 4)
Gigabox No 4 holds the development rights to construct a 49.9MW lithium-ion battery energy storage plant based in Angus, Scotland.
The project will be connected to the Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The connection will be initially with a capacity of 45MW, increasing to the full 49.9MW capacity by early 2025.
Sandridge Battery Storage
In May 2021 FGEN announced the acquisition of a 50% equity stake in Sandridge Battery Storage Limited (“SBSL”). SBSL holds the development rights to construct the Sandridge Battery Storage project, a 50MW lithium-ion battery energy storage plant based in Melksham in Wiltshire, UK. The investment has been made alongside Foresight Solar Fund Limited.
The project will be connected to Southern Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The project will provide stability to the grid through provision of Dynamic Containment, or by reducing volatility on the system via wholesale trading in the wholesale power markets and/or the Balancing Mechanism, a tool used by the National Grid to balance supply and demand in real time.
West Gourdie Battery Storage
On 3 March 2021, FGEN announced the acquisition of a 100% equity stake in Gigabox South Road Limited (“GSRL”). GSRL holds the development rights to construct the West Gourdie project, a 50MW lithium-ion battery energy storage plant based in Dundee, UK.
The West Gourdie project became operational in March 2023.
Storage projects provide vital support to the National Grid, by reducing system imbalance and enhancing the grid’s ability to harness a greater level of intermittent renewables on the system. The West Gourdie project will be connected to Scottish Hydro Electric Power Distribution plc’s distribution network and has a 49.9MW import and export connection. The project will provide stability to the local network either through direct provision of balancing services to the National Grid, or by reducing volatility on the system via wholesale trading in the wholesale power markets and/or the Balancing Mechanism, a tool used by the National Grid to balance supply and demand in real time .
This acquisition represents FGEN’s third investment into battery storage systems, adding to the two co-located batteries that the Company owns as part of its run-of-river hydro portfolio.