Martin's Blog

  • Is MCS fit for purpose?

    17 October 2014, 12:38

    I have just returned from three days at Solar Energy UK (SEUK) and wanted to share some of the debate and feedback that came out of a session I chaired on each of the three days.

  • Preparing for the upcoming IET solar PV code of practice

    08 October 2014, 12:05

    Martin Cotterell looks at the forthcoming IET Solar PV code of practice, how it relates to other PV installation standards and the impact on installers in the UK.

  • Testing PV systems: Forget ‘fit and forget’

    16 July 2014, 10:30

    Martin Cotterell looks at performing a periodic verification (condition report) on the DC side of the system.

  • Fire safety and solar: evaluating new products

    09 May 2014, 07:13 | Comments (1)

    I am currently working on an aspect of PV installation standards that invokes a lot of interest and debate – fire safety.

  • G83/2 deadline: are you ready?

    14 February 2014, 09:00 | Comments (1)

    From 1 March, solar arrays installed with inverters that do not comply with G83/2 may lead to the DNO refusing to connect your project. Martin Cotterell explains what installers should be looking out for and how to prepare for the new requirements.

  • Solar MOTs: are they a waste of time?

    31 January 2014, 10:51 | Comments (1)

    Where do you sit; are service and maintenance visits to a solar PV system a necessary and worthwhile exercise, or just a waste of money? This was the question posed to me today by a customer. My answer was: “Well that depends on the system, the installer and the way the system is behaving.”

  • You don’t know what you’ve got till it’s gone

    03 January 2014, 12:26 | Comments (2)

    Now I don’t know if you were affected by the power cuts over the holiday period, but some of the media coverage regarding the power outages made me consider the attitude we have to our electricity supply.

  • PID and functional earthing

    26 November 2013, 13:23 | Comments (3)

    Potential Induced Degradation (PID) is a topic that’s been around the PV industry for a while, but until fairly recently I had not been paying it that much attention.  This changed for me at Solar Energy UK 2013 in Birmingham when a manufacturer giving a talk said they had seen evidence of PID reducing output in a particular system by 60% - yes 60%!

  • So what’s gone wrong?

    26 September 2013, 10:28 | Comments (2)

    In his latest blog, Martin Cotterell looks at the various methods that installers can employ to identify problems with an installed system.

  • Getting ready for PV storage

    15 August 2013, 12:07 | Comments (4)

    Small-scale PV storage has not yet taken off in the UK. However, the necessary technical and commercial drivers could kick in soon and rapidly change this situation, and when they do, we need to be ready, says Martin Cotterell

Martin Cotterell

Sundog Energy, Founder, Chairman and Technical Director

Martin Cotterell is the Founder and currently Chairman and Technical Director of Sundog Energy. Founded in 1995, Sundog Energy has grown to be one of the leading PV companies in the UK, with clients from all sectors from housing to large public and commercial projects. Sundog has installed some of the UK’s most innovative PV systems, including currently a 240kWp glass-glass PV system on Kings Cross Station. Read more about Martin Cotterell →

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