IN Brief:
- Scotland had 1,253 renewable energy projects representing 99.4GW in its planning pipeline at the end of June.
- Electricity storage accounts for 43.9GW of the pipeline, including 33.1GW of proposed battery capacity.
- Operational renewable generation capacity stands at 18.4GW, while electricity storage has reached 1,663MW.
Scottish Government statistics put Scotland’s renewable energy planning pipeline at 99.4GW at the end of June 2026, with battery storage and offshore wind accounting for most of the prospective capacity moving through development.
The pipeline contains 1,253 projects. Electricity storage represents 426 schemes with an estimated 43.9GW of capacity, while 768 renewable electricity generation projects account for 51.6GW. Another 58 projects covering other renewable energy technologies represent 3.8GW.
Battery storage is the largest individual technology category at 33.1GW, followed by offshore wind at 30.1GW and onshore wind at 17.7GW. The figures give storage a much larger role in the development pipeline than its current operating fleet would suggest and illustrate how rapidly flexibility projects have accumulated alongside new generation.
The total has increased sharply since the end of March, when the Scottish pipeline stood at 85.4GW across 1,236 projects. Most of the quarterly increase came from nine offshore wind projects representing another 13.6GW. Battery storage rose more modestly, from 32.8GW to 33.1GW.
That distinction matters because an increase in planning pipeline capacity is not equivalent to the same amount entering construction. Projects can remain in development for years while consenting, grid access, finance, equipment procurement, and commercial arrangements are resolved. Some schemes will change capacity or ownership, while others will not reach construction at all.
Operational figures provide a more conservative measure of the system already in place. Scotland had 18.4GW of renewable electricity generation capacity at the end of the second quarter, 3.3% above the level a year earlier. Onshore wind accounted for the largest annual increase, adding around 0.5GW.
Electricity storage remains much smaller than its development pipeline. Scotland had 27 operational storage projects with combined capacity of 1,663MW at the end of June. Of those, 25 battery projects represented 923MW, while two pumped hydro installations contributed 740MW.
The difference between 1.663GW operating and 43.9GW in development is one of the more important figures in the release. Storage projects can enter planning far more quickly than transmission substations, new circuits, system studies, and connection reinforcement can be delivered. The pipeline therefore represents potential flexibility rather than capacity available to the system in the near term.
Generation is increasing at the same time. Scotland produced 22.6TWh of renewable electricity during the first half of 2026, while second quarter renewable generation reached 9.1TWh, the highest Q2 output in the published series. That adds to the amount of variable generation that networks, storage, interconnection, and flexible demand have to accommodate.
Recent battery developments show how different stages of the pipeline translate into system capacity. Coalburn 1 reached commercial operation at 500MW/1GWh, while Revera’s 400MW/800MWh Hunterston project has reached financial close and notice to proceed. One contributes to today’s operational total; the other remains part of future capacity until construction and commissioning are complete.
Offshore wind creates the same distinction on a larger scale. A consented or planned generating project also requires offshore and onshore substations, export cables, converter equipment where applicable, transmission reinforcement, protection, controls, and a connection capable of moving power into the wider system. Those assets often follow different planning and procurement programmes from the turbines themselves.
Scotland already exports substantial volumes of electricity. In 2025 it exported 21.7TWh and imported 0.9TWh, producing net exports of 20.8TWh. That flow illustrates why additional Scottish generation cannot be assessed independently from the transmission system connecting it with demand elsewhere in Great Britain.
The 99.4GW pipeline is therefore better read as a measure of development pressure than as a forecast of installed capacity. Projects will compete for connection dates, equipment, capital, contractors, land, and planning consent, and the system is unlikely to absorb every scheme on its original timetable.
Even substantial attrition would leave a large delivery requirement. Scotland now has 18.4GW of operating renewable generation and 1.663GW of storage against a pipeline approaching 100GW. Converting a meaningful share of that inventory into useful generating and flexible capacity will require network investment to move at something closer to the pace of project development.
