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<blockquote data-quote="akaPABLO01" data-source="post: 5760548" data-attributes="member: 43748"><p>There are multiple applications for receiving rhi whether it’s a domestic rhi or a commercial rhi, these are the two main bands. </p><p></p><p>Domestic rhi is paid over a period of 7 years and is usually a higher rate then the commercial rhi. </p><p></p><p>RHI - renewable heat incentive. </p><p></p><p>Payments made for producing heat from electricity, biomass, air and solar. </p><p></p><p>Let’s take the two main ones being air and electricity. Biomass uptake has reduced its standing in the payment table due to mass size in rollout being systems in the range of 500kWth upwards. You don’t usually see electricity and air rolled out in this scale so the rhi payments have actually increased every April until there is enough interest and government quotas are reached. The rhi as a whole will be getting a audit averhall April 2020 I think, the review is to understand whether subsidies are to be cut or continued. As said, this will rely on the rollout being cost and efficiency. </p><p></p><p>The two main uptakes are air and electricity. Ground source heat pumps combine with ground thermal heat and can handle larger less insulated properties. The Achilles with air is that larger properties require maybe two units in what’s called a cascade system. This makes equipment and installation considerably costly. </p><p></p><p>I’ve just completed an analysis for a 5 bed converted school in penines needing 2 x 14kW Mitsubishi with 28mm carcass, 600mm solid sandstone wall, pre 1900. The maximum rhi for air source is just a smidge over £10,000. Cost of install, 26 rads, kickspace kitchen heater, full heating and hot water carcass... upwards of £30,000. </p><p></p><p>If they had land and ground then their potential rhi would be £30,000. </p><p></p><p>Their current heat, LPG, about 8p /kWth</p><p></p><p>The heat pumps can be a ratio of 3.65/electricity unit cost let’s say £0.16, this then becomes £0.0476p /kWth, nearly halving heating costs. </p><p></p><p>That covers 1 site using different heat pumps. </p><p></p><p>Then there is commercial instal and there are two different types but both only use gshp as the technology. These types are shared ground and shared heat pump or shared ground, heat pump in each building. The later refers to types of property such as neighbours sharing a ground or flats (apartments) each with their own heat pump. These are paid on their epc value over 20 years. If they use more heat then the epc as registered on the heat meter then they do not receive more then the epc will allow. </p><p>The second (which is the best) is if you have a farmhouse, converted barn, stables, new build. You use one ground array, multiple heat pumps in cascade with once buffer for heating and large cylinder to cover 3 property or more water needs. This then is paid by size of heat pump, the usual is about 45kW. </p><p>45x 1314= 59,130kWth qualify for tier 1 payment, the extra units are paid at tier 2 level</p><p></p><p>Tier 1 £0.0961</p><p>Tier 2 £0.0279</p><p></p><p>Let’s say all three use 80,000 kWth</p><p></p><p>59,130x0.0961= £5,682.39</p><p></p><p>20,870x0.0279 = £582.27</p><p>= £6,264.66</p><p></p><p>X 20 years = £125,293</p><p></p><p>Typical install cost £56,000, ground and civics by farmer. </p><p></p><p>Cost to run about £3,809 /annum. </p><p></p><p>Commercial air is about 2p in tariff and doesn’t really pay. </p><p></p><p>Sources </p><p>Non domestic rhi </p><p><a href="https://www.ofgem.gov.uk/environmental-programmes/non-domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-non-domestic-rhi" target="_blank">https://www.ofgem.gov.uk/environmental-programmes/non-domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-non-domestic-rhi</a></p><p></p><p>20 years</p><p></p><p>Domestic rhi </p><p><a href="https://www.ofgem.gov.uk/environmental-programmes/domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-domestic-rhi/current-future-tariffs" target="_blank">https://www.ofgem.gov.uk/environmental-programmes/domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-domestic-rhi/current-future-tariffs</a></p><p></p><p>7 years</p></blockquote><p></p>
[QUOTE="akaPABLO01, post: 5760548, member: 43748"] There are multiple applications for receiving rhi whether it’s a domestic rhi or a commercial rhi, these are the two main bands. Domestic rhi is paid over a period of 7 years and is usually a higher rate then the commercial rhi. RHI - renewable heat incentive. Payments made for producing heat from electricity, biomass, air and solar. Let’s take the two main ones being air and electricity. Biomass uptake has reduced its standing in the payment table due to mass size in rollout being systems in the range of 500kWth upwards. You don’t usually see electricity and air rolled out in this scale so the rhi payments have actually increased every April until there is enough interest and government quotas are reached. The rhi as a whole will be getting a audit averhall April 2020 I think, the review is to understand whether subsidies are to be cut or continued. As said, this will rely on the rollout being cost and efficiency. The two main uptakes are air and electricity. Ground source heat pumps combine with ground thermal heat and can handle larger less insulated properties. The Achilles with air is that larger properties require maybe two units in what’s called a cascade system. This makes equipment and installation considerably costly. I’ve just completed an analysis for a 5 bed converted school in penines needing 2 x 14kW Mitsubishi with 28mm carcass, 600mm solid sandstone wall, pre 1900. The maximum rhi for air source is just a smidge over £10,000. Cost of install, 26 rads, kickspace kitchen heater, full heating and hot water carcass... upwards of £30,000. If they had land and ground then their potential rhi would be £30,000. Their current heat, LPG, about 8p /kWth The heat pumps can be a ratio of 3.65/electricity unit cost let’s say £0.16, this then becomes £0.0476p /kWth, nearly halving heating costs. That covers 1 site using different heat pumps. Then there is commercial instal and there are two different types but both only use gshp as the technology. These types are shared ground and shared heat pump or shared ground, heat pump in each building. The later refers to types of property such as neighbours sharing a ground or flats (apartments) each with their own heat pump. These are paid on their epc value over 20 years. If they use more heat then the epc as registered on the heat meter then they do not receive more then the epc will allow. The second (which is the best) is if you have a farmhouse, converted barn, stables, new build. You use one ground array, multiple heat pumps in cascade with once buffer for heating and large cylinder to cover 3 property or more water needs. This then is paid by size of heat pump, the usual is about 45kW. 45x 1314= 59,130kWth qualify for tier 1 payment, the extra units are paid at tier 2 level Tier 1 £0.0961 Tier 2 £0.0279 Let’s say all three use 80,000 kWth 59,130x0.0961= £5,682.39 20,870x0.0279 = £582.27 = £6,264.66 X 20 years = £125,293 Typical install cost £56,000, ground and civics by farmer. Cost to run about £3,809 /annum. Commercial air is about 2p in tariff and doesn’t really pay. Sources Non domestic rhi [URL]https://www.ofgem.gov.uk/environmental-programmes/non-domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-non-domestic-rhi[/URL] 20 years Domestic rhi [URL]https://www.ofgem.gov.uk/environmental-programmes/domestic-rhi/contacts-guidance-and-resources/tariffs-and-payments-domestic-rhi/current-future-tariffs[/URL] 7 years [/QUOTE]
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