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Farm Building and Infrastructure
Renewable Energy
Accelerated Loss of Mains Change Programme
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<blockquote data-quote="Colin Lockwood" data-source="post: 7280738" data-attributes="member: 150763"><p>Hi All. I run the ALoMCP for WindCare - we are a recognised contractor with all the DNOs and have completed these upgrade works on over 300 sites across the country and across plenty of different technologies - wind, solar, AD/CHP, biogas, Battery etc</p><p></p><p>It certainly can be a confusing subject. But the most common plant is outlined below. Each site can be specific and needs to be discussed with a contractor that knows the detailed ins and outs of this program. You can do this yourself (and people have), but there can be a lot of confusing detail - not to mention DNO differences as well! Us contractors are paid directly by your local DNO, so the woks do not cost you anything. Irrespective of who does the application works, please do not do the physical works yourself - this must be done and tested by a trained tester. This is a key safety device </p><p></p><p>The grants are available until 9th February 2021 - although this window may close early if the grant money runs out. Enforcement for none-compliant sites won't come in until 2022, but the grant funding will not be available this long.</p><p></p><p>Solar - typically you only need to upgrade your system if you have a separate G59 relay. This relay generally starts being installed above 50kw (although we have had several sites around 25kw that have relays and need upgrading), but definitely installed over 200kw. If you only have inverters, in 99% of the cases you don't need to upgrade as they don't use Vector Shift or RoCoF for their Loss of Mains Protection like seperate relays do. Worth checking you aren't that 1% though!</p><p></p><p>Wind - almost all wind above 12kw have a G59 relay and therefore need upgrading. This will typically be a Loss of Mains Disablement where we turn off the Vector Shift until you get to BIG wind (DFIG turbines starting >1MW) where things can get more complicated. Some sites (like Enercons) have relays in them which can be set to compliant RoCoF, but most wind turbines will have old relays which cannot have compliant RoCoFs set in them - i can go into why if anyone is interested.</p><p></p><p>AD, CHP, Biogas etc - every installation above 12kw will have a G59 relay. As they are synchronous plant (solar and wind are asynchronous), they are worse offenders on the grid. They all need an upgrade doing, and in most cases this will be a relay change.</p><p></p><p>If you would simply like to discuss your site for some advice, or would like WindCare to complete the application works and on site works, then please get in touch.</p><p></p><p>Colin Lockwood</p><p><a href="mailto:colin.lockwood@windcare.co.uk">colin.lockwood@windcare.co.uk</a></p><p>01751 472595</p><p><a href="https://www.nationalgrideso.com/news/accelerated-loss-mains-change-programme-windcare-case-study" target="_blank">https://www.nationalgrideso.com/news/accelerated-loss-mains-change-programme-windcare-case-study</a></p></blockquote><p></p>
[QUOTE="Colin Lockwood, post: 7280738, member: 150763"] Hi All. I run the ALoMCP for WindCare - we are a recognised contractor with all the DNOs and have completed these upgrade works on over 300 sites across the country and across plenty of different technologies - wind, solar, AD/CHP, biogas, Battery etc It certainly can be a confusing subject. But the most common plant is outlined below. Each site can be specific and needs to be discussed with a contractor that knows the detailed ins and outs of this program. You can do this yourself (and people have), but there can be a lot of confusing detail - not to mention DNO differences as well! Us contractors are paid directly by your local DNO, so the woks do not cost you anything. Irrespective of who does the application works, please do not do the physical works yourself - this must be done and tested by a trained tester. This is a key safety device The grants are available until 9th February 2021 - although this window may close early if the grant money runs out. Enforcement for none-compliant sites won't come in until 2022, but the grant funding will not be available this long. Solar - typically you only need to upgrade your system if you have a separate G59 relay. This relay generally starts being installed above 50kw (although we have had several sites around 25kw that have relays and need upgrading), but definitely installed over 200kw. If you only have inverters, in 99% of the cases you don't need to upgrade as they don't use Vector Shift or RoCoF for their Loss of Mains Protection like seperate relays do. Worth checking you aren't that 1% though! Wind - almost all wind above 12kw have a G59 relay and therefore need upgrading. This will typically be a Loss of Mains Disablement where we turn off the Vector Shift until you get to BIG wind (DFIG turbines starting >1MW) where things can get more complicated. Some sites (like Enercons) have relays in them which can be set to compliant RoCoF, but most wind turbines will have old relays which cannot have compliant RoCoFs set in them - i can go into why if anyone is interested. AD, CHP, Biogas etc - every installation above 12kw will have a G59 relay. As they are synchronous plant (solar and wind are asynchronous), they are worse offenders on the grid. They all need an upgrade doing, and in most cases this will be a relay change. If you would simply like to discuss your site for some advice, or would like WindCare to complete the application works and on site works, then please get in touch. Colin Lockwood [email]colin.lockwood@windcare.co.uk[/email] 01751 472595 [URL]https://www.nationalgrideso.com/news/accelerated-loss-mains-change-programme-windcare-case-study[/URL] [/QUOTE]
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