POWER
Grid constraints threaten renewable uptake
Demand for renewable energy is soaring, but limited grid capacity is slowing the widespread green electricity adoption, says Suzanna Lashford, business development manager at Vattenfall Network Solutions
A
key plank of the UK’s decarbonisation strategy is transitioning to an electricity network powered solely by zero carbon, renewable energy.
Progress is being made: The National Grid’s electricity system operator (ESO) reported that in 2022 the UK hit a record high of wind and solar generation. But there is one major roadblock that stands in the way of the electric revolution – the limited (and rapidly diminishing) capacity available via the UK power grid.
The non-profit Energy and Climate Intelligence Unit (ECIU) noted that British- based renewables have already overtaken gas as the UK’s primary source of electricity, based on data taken between October 2022 and January 2023.
However, following the unprecedented soar in demand for wind and solar farm grid connections, many projects are now being placed on hold. At times when network capacity for renewables was restricted in the financial year of 2022/23, ECIU explains, payments to gas generators reached £485 million – the highest payment to any type of power generator.
Beware of backlogs
The National Grid is warning those looking to secure new connections in England and Wales that they will have to wait in line behind some 600 other projects – collectively compromising of 176GW of energy. This backlog extends more than a decade, with only 64GW of connected capacity available. These limitations are delaying billions of pounds of private investment and at the same time putting the brakes on the UK energy sector, which is not compatible with the UK government’s targets for renewable energy generation.
The issue will likely spiral over the next few decades, with the UK’s electricity demand expected to double or even triple by 2050. As it stands, grid-blocking is restricting hundreds of credible projects from achieving their renewable energy potential, thwarting
28 MAY 2023 | ELECTRONICS TODAY
the efforts of those who are ready to fully commit to the net zero transition. If the UK wants to meet its targets, wider plans must be initiated to improve capacity and lessen delays. Connections would need to be looked at on a regional basis to enable the UK to analyse where demand is, and place generation close to demand to help stabilise those local areas.”
The National Grid ESO has publicly acknowledged that the current connection process has ‘not kept pace with the rapid changes occurring in the energy sector’, and recognised that the common consensus across the country is that the process is no longer fit for purpose.
Distribution Network Operators (DNOs) are currently drawing on new, more flexible approaches to managing their network and enabling connections via curtailment offers, which offer users the opportunity to gain some of their required capacity now and some later, in a bid to release capacity in constrained areas and free up space on the grid. But such changes are not yet guaranteed, and may take years to put in motion.
Breaking the bottleneck Some developers are in the position where
they can afford longer time scales for a grid connection. They may also be offered a connection much further from their facilities, thus increasing the overall cost to the developer.
By partnering with an Independent Network Operator (IDNO), or a ‘power partner’, any sized developer can receive support in value engineering their connections and therefore reducing costs, while avoiding bottlenecks. IDNOs are a direct, client-facing ‘power partner’, meaning customers do not have to wait in line behind other developers to get our support. They reserve capacity on their partner’s behalf and contribute to the cost of the network by investing in new cables, substations, and upgrades.
Vattenfall’s IDNO uses a holistic, collaborative approach to plan the most effective power upgrade strategy for developers, which is tailored to their specific requirements and decarbonisation goals; and we even go one step further to ensure all on-site power is being used as efficiently as possible so that our partners never overpay for what they need.
Vattenfall Network Solutions
https://group.vattenfall.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46
