Electricity Ten Year Statement - National Grid

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2.9 Embedded generation Figure 2.9.1: Slow progression embedded generation GW 10 8 6 4 2 0 This section describes the embedded generation capacity mix for each of the scenarios as the analysis so far in this chapter has focused only on transmission connected generation capacity. A definition of what we class as ‘embedded generation’ can be found in section 2.4.1. In the assessment of transmission demand, this embedded generation is treated as ‘negative demand’ as outlined in section 2.3. Renewable technologies are more likely to be connected to the distribution grid than fossil and nuclear generation as they are not sufficiently scalable in many locations to make a transmission connection economically viable. In England and Wales, embedded generation will generally consist of projects that are under 100 MW capacity in Page 44 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Wind Hydro CHP Biomass Marine 2025 2026 2027 total. In Scottish Power’s transmission area (South Scotland) this threshold falls to 30 MW and in Scottish Hydro Electric’s transmission area (North Scotland) it is 10 MW. 2.9.1 Slow Progression 2028 2029 2030 2031 Figure 2.9.1 shows the embedded generation capacity mix for Slow Progression out to 2032. As can be seen from the graph the levels of embedded generation remain fairly static throughout the period with a net increase of only 0.90 GW over the whole period reflecting the underlying principles of this scenario. 2032
Figure 2.9.2: Gone green embedded generation GW 20 18 16 14 12 10 8 6 4 2 0 2012 2013 2014 2.9.2 Gone Green 2015 2016 2017 2018 2019 Figure 2.9.2 shows the embedded generation capacity mix for Gone Green which shows more robust levels of growth than Slow Progression, underpinned by higher fuel and carbon prices as well as some technology improvements. Embedded wind shows the largest increase in capacity over the period to 2032, showing a steady increase from 2.2 GW in 2012 to 6.6 GW by the end of the period. The vast majority of embedded wind will continue to be onshore due to the proposed size of the installations. Hydro shows a little growth over the period resulting in a total increase of 180 MW, continuing current installation rates. 2020 2021 2022 2023 Electricity Ten Year Statement November 2012 2024 Wind Hydro CHP Biomass Marine 2025 2026 2027 2028 2029 2030 2031 Combined Heat and Power (CHP) generation increases modestly over the period to 2032 resulting in a total increase of 1.8 GW on current levels. After wind, biomass is the second largest increase seen in this scenario with a total increase in generation capacity of 1.8 GW. Marine embedded generation shows an increase, albeit small, with a total increase over the period of 450 MW. 2032 Page 45
Page 1: Electricity Ten Year Statement UK e
Page 5 and 6: Contents Foreword /////////////////
Page 7 and 8: future transmission reinforcement.
Page 9 and 10: Falling fault levels on the system
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Page 13 and 14: 1.2 Methodology The document itself
Page 15 and 16: The appendices include: System Sche
Page 17 and 18: 2.1 Future Energy Scenarios Our ene
Page 19 and 20: 2.3 Demand This section describes t
Page 21 and 22: In Slow Progression, end-users’ p
Page 23 and 24: Figure 2.4.1: Slow progression gene
Page 25 and 26: Figure 2.4.3: Accelerated growth in
Page 27 and 28: Figure 2.4.5: System development an
Page 29 and 30: Figure 2.5.1: Contracted background
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Page 35 and 36: The government review of ROC bandin
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Page 39 and 40: Figure 2.6.5: Onshore wind contract
Page 41 and 42: Figure 2.6.7: Biomass contracted Vs
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Page 49 and 50: 3.1 Introduction Electricity Ten Ye
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Page 53 and 54: The boundary capability is then the
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3.7 Wider boundaries 3.7.1 Boundary
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Figure B1.2: Required transfer and
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Electricity Ten Year Statement Nove
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3.7.2 Boundary B2 Figure B2.1: Geog
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Table B5.2: Selection and timing of
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Table B6.1: List of potential reinf
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3.7.8 Boundary B7a Figure B7a.1: Ge
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Figure B7a.2: Required transfer and
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Changes in the capacity and geograp
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3.7.10 Boundary B9 Figure B9.1: Geo
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1 Reinforcement date triggered by p
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3.7.12 Boundary B11 Figure B11.1: G
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3.7.15 Boundary SC1 Figure SC 1.1:
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Table SC1.2: Selection and timing o
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Table B14.1: List of potential rein
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3.7.17 Boundary B14(e) Boundary B14
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In 2018 there is a proposal to conn
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Table B15.1: List of potential rein
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3.8.2 Inputs Future Energy Scenario
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The range of solutions identified w
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1 The Electricity Scenarios Illustr
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3.8.6 Development of current year o
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Figure 3.8.2: Stopping or delaying
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For regions where the boundary tran
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Table 3.8.5: Northern England trans
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Table 3.8.7: Northern England reinf
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Table 3.8.9: Lowest cost strategies
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East Coast and East Anglia Identifi
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Table 3.8.12: Lowest cost strategie
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The worst regrets for each of the o
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The worst regrets for each of the o
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developed incrementally alongside t
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North Wales, South Wales and possib
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Table 3.12.1 It is expected that an
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The boundaries currently assessed r
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4.1 Introduction Electricity Ten Ye
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Figure 4.1.2: Gone green wind produ
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4.2 System operability Figure 4.2.1
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4.3 System design and operation cha
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Figure 4.3.3: System inertia change
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4.3.2 Impact on System Strength (Fa
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Figure 4.3.6: Fault level variation
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There are other factors which will
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Figure 4.3.9: Q/P ratio over a 24hr
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4.3.3 Power Flow Volatility In the
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1 Impact of Intermittency, Poyry su
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1 Andersen, P., “Da stormen tog t
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4.4.2 Parallel Operation of AC and
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4.4.6 Energy Storage The storage of
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5.1 Introduction Electricity Ten Ye
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5.3 Stakeholder engagement The ETYS
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