As solar farm developers continue to adjust to life after Government subsidies, there are many positive ingredients to indicate that the sector is here to stay. Investors continue to want to back the delivery of, and see the returns from, ground-mounted solar schemes; the capital costs and performance of the technology continues to improve whilst landowners - particularly of agricultural land - still see solar power generation as a way of achieving diversification in their rural businesses.
What is working against the sector however, it seems, is the lack of availability of viable points of connection to the grid that have the capacity to accommodate the electricity generated. In the words of one of NLP’s solar farm clients, viable points of connection are becoming “as rare as hens’ teeth”
. Identifying a viable point of connection is one challenge, another is then finding a site nearby that is capable of ‘plugging’ into it, whilst not being too sensitive to hosting such a significant feature as a solar farm in the landscape. This is where the planning challenges begin, particularly where the developer takes the big bold step of entering the Green Belt to explore site availability…
The statistics stack against planning permission being granted for large scale ground-mounted solar farm developments in the Green Belt. In our involvement with solar farm proposals on Green Belt land, we often find the focus of local authorities is on why such proposals have been refused elsewhere (for example in Lancashire
) rather than looking at the particular circumstances of the proposal in front of them and bearing in mind the reasons why solar farm developments have already been found acceptable on Green Belt sites (such as at Arnold in Gedling
in Broxtowe and at Bletchingdon in Oxfordshire
A Green Belt designation undoubtedly adds a whole set of challenges which need to be addressed as part of the planning process for a prospective solar farm development. To this end, paragraph 91 of the National Planning Policy Framework (NPPF) recognises:
“When located in the Green Belt, elements of many renewable energy projects will comprise inappropriate development. In such cases developers will need to demonstrate very special circumstances if projects are to proceed.”
This policy is to be read alongside the cornerstone paragraph of the NPPF which sets the key principle for determining Green Belt proposals:
“When considering any planning application, local planning authorities should ensure that substantial weight is given to any harm to the Green Belt. ‘Very special circumstances’ will not exist unless the potential harm to the Green Belt by reason of inappropriateness and any other harm, is clearly outweighed by other considerations.” (paragraph 88)
Often, when determining whether ‘very special circumstances
’ (VSC) exist for ground-mounted solar schemes in the Green Belt, applicants and determining authorities tend to focus on the benefits of the solar scheme, essentially the level of contribution that the scheme will make to renewable energy supply, together with other benefits that might include ecological enhancements, rural diversification and community contributions. However, focussing too much on the benefits, in weighing up whether VSC exist, can lead to an overly simplistic approach – the larger the MW energy generation, the greater the prospects of there being VSC.
What we find, however, is that before looking at the benefits, it is equally (and probably more) important to establish the extent of harm on a site-by-site basis. Green Belt is not uniform and the contribution that one part of the Green Belt makes to the stated five purposes can be quite different to another part. The ability to screen and visually contain one site, in a way that is not possible in another location, is all-important when starting to consider whether the scales can start to be rebalanced away from the default position of the scheme’s inappropriateness because of its impact upon the openness of the Green Belt. Knowing how much weight there is on the harm side of the scales leads to a better understanding of the ‘weight’ that the counteracting benefits need to have, sufficient enough to tip the scales and create the VSC.
Here at NLP, we use a range of tools and services to analyse both the value of Green Belt sites and their vulnerability to “alien intrusions” (in the words of Greg Clark
) in the form of ground-mounted solar farms. We build up an evidence-based picture of the relative value of sites within a given search area, so as to assist developers both at site finding stage and in preparing alternative site assessments that national policy now seeks as part of the application determination process.
We have seen considerable success in the methodical approaches that we have devised in assessing site suitability and the strength of case for VSC, with one local authority recently considering that NLP’s demonstrated absence of a more suitable site in the search area was, in itself, a contributing factor to there being VSC. Once we know we have a Green Belt site that touches lightly on the harm side of the scales (or certainly lighter than its neighbours) then we have a springboard from which to elevate the scheme, through the promotion of its wide-ranging benefits, into the realms of VSC.
In recent months, NLP has successfully applied this approach and secured planning permissions for over 20MW of ground-mounted solar farms on sites in the Nottingham - Derby Green Belt.