Drax Group, a prominent renewable energy company, is exploring the integration of solar photovoltaic panels at eight of its historic hydro power stations across southwest Scotland. The initiative, currently in its early design and planning phases, aims to install approximately 1,500 solar panels on the rooftops of facilities within the Galloway and Lanark hydro schemes, some of which date back to 1926. This strategic move seeks to generate on-site renewable electricity to power the auxiliary systems of these long-standing hydro plants, thereby reducing their reliance on external grid power for operational needs.
The proposed solar installations are projected to generate up to 482 MWh of clean electricity annually. This capacity would directly support the operational components of the hydro stations, which Drax acquired in December 2018. The Lanark system, commissioned in 1926, includes power stations at Bonnington and Stonebyres, while the Galloway scheme, opened in 1935, comprises six stations: Drumjohn, Kendoon, Carsfad, Earlstoun, Glenlee, and Tongland. Combined, these hydro assets currently generate enough energy to power over 400,000 homes.
Martin McGhie, Plant Manager for Drax’s hydro-electric power schemes in Galloway and Lanark, emphasized the strategic importance of the proposal. "By generating renewable electricity on-site, we aim to power the schemes' auxiliary systems sustainably, supporting the operation of the core power generation components at each plant," McGhie stated. He added that while the proposals are at an early stage and subject to final design work and planning approvals, "the potential is significant," further reinforcing Drax's commitment to renewable generation.
This development highlights a growing trend in the renewable energy sector towards hybrid generation models, where different clean energy technologies are combined to enhance efficiency and reliability. By integrating solar power with existing hydroelectric infrastructure, Drax aims to optimize energy consumption within its own operations, setting a precedent for leveraging historical assets for modern energy demands. The project underscores the financial and environmental benefits of self-sufficiency for large-scale renewable energy facilities, potentially leading to reduced operational costs and a further diminished carbon footprint for the company's Scottish portfolio. The successful implementation of these plans could serve as a blueprint for other legacy renewable assets seeking to enhance their sustainability and operational independence.