[Talk-GB] Solar panels on Alvares House in Homerton

[Mat Attlee]

After mapping a few other solar installations where I could also find
additional evidence that confirmed there were panels installed, I am not so
convinced that the shapes on top of Alvares House are solar panels as they
do look a bit different.

How often is the satellite imagery updated? I've read about some other
solar projects in Hackney though I can't see the panels in the current
imagery.

On Tue, 8 Dec 2020 at 16:23, SK53 <sk53.osm at gmail.com> wrote:

> Hi Mat,
>
> They do indeed look like solar panels, although the images arent as clear
> as one would like.
>
> You can just add a single node as a solar panel (preferably with
> location=roof & a direction tag) or try & map the lot as an area. The
> number of modules is a difficult to discern. Using the measurement tool in
> iD (or Vespucci or Josm) indicates values of about 6.4, 7.9 and 12.9 m with
> width of around 1.9 for some of the groups of modules. I can't really
> decide if these are rows of single modules with long axis roughly E-W or
> pairs of angled modules with long axis pointing S. One group measuring 6.4
> m looks to have 7 modules in the former configuration, which might suggest
> a slightly smaller module width of 90 cm. (I'm using this measurement
> approach to determine module counts for installations where this is not
> directly obvious from imagery: as most modules are roughly 1.6 by 1 m and
> laid out in rectangles the typical case is straightforward : unlike here.)
>
> There are plenty more unmapped installations on adjacent buildings
> including the apartment blocks to the E.
>
> As aerial imagery quality improves we'll likely revisit many mapped solar
> power installations to either improve or check module counts.
>
> Jerry
>
> On Tue, 8 Dec 2020 at 15:09, Mat Attlee <mattattlee at gmail.com> wrote:
>
>> In surveying and adding Alvares House in Homerton in London, I noticed
>> that the Bing aerial photos seem to indicate solar panels on the roof
>> though I can't find any details on them
>>
>> https://www.openstreetmap.org/way/882360871
>>
>> Cheers
>> _______________________________________________
>> Talk-GB mailing list
>> Talk-GB at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-gb
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-gb/attachments/20210111/908cd6e0/attachment.htm>