Role of Augmentation strategy in Storage Design opportunities and challenges-solarbe文库

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Role of Augmentation strategy in Storage Design opportunities and challenges Giacomo Mariucci Storage Design, Engineering and Construction Shenzhen, November 25th-26th, 2019 Executive Summary 1. What augmentation is 2. Augmentation technical approaches; 3. Sizing optimization and impact on warranties; 4. Challenges and Future perspectives. 2 Enel Green Power i Enters new markets ii Ensures industrial growth iii Reduces emissions Key Features 1. Geographically and technologically diversified 2. First mover in new markets 3. Flexible time to market 4. Innovation and sustainability as strategic pillars Enel Group 3 Enel Green Power role within the Group Global Trading US A 5 GW Canad a 0,1 G W S p agn a 6,5 G W It ali a 14 ,5 G W G r ec ia 0,3 G W Ro man ia 0,5 G W M es sic o 2,1 G W Ind ia 0,2 G W A u stral ia 0,3 G W S u d A f r ica 0,5 G W Bra sil e 2 ,5 G W Co lom b ia 3,2 G W P er u 1,1 G W Cile 4,7 G W A r g ent ina 1,4 G W G u atem ala 0,2 G W P anama 0,4 G W Co sta Rica 0,1 G W M ar o cc o Ru ss ia Z amb ia E t h iop ia G er man y Ind o n es ia Keny a S ing apo r e 4Managed capacity GW 10.6 3.7 28.1 0.9 Key figures 2018 Key financials €bn Consolidated Capacity GW Production TWh EBITDA Opex Maintenance capex Growth capex 2018 39.2 99.1 4.5 1.4 0.3 2.9 Consolidated capacity GW 8.2 2.3 27.8 0.8 43.4 108.4 Managed Hydro SolarWindGeo Global Footprint Enel Green Power Countries with advanced stage of development Countries of presence 3.3 5 Role of augmentation strategy in Storage Design opportunities and challenges Battery Storage Augmentation 6 Setting the common ground - Lower bounds to BESS capacity during lifetime - Minimum discharge time required - Minimum project lifetime Tender Requirements - Services provided by BESS - Remuneration scheme - Impact on throughput and cycling Project Business Case - Trend of battery prices - Different degradation patterns - Housing and AC system integration Technology Battery Storage sizing is a complex activity affected by a way to reduce Storage installed Capacity at Beginning of Life by installing additional capacity during project lifetime Augmentation Battery Cost Decrease Capacity Degradation driv er s Battery Storage Augmentation An example BESS integrated with Solar PV Farm Lower Capex due to lower battery oversize take value from technical improvements and cost reduction Manage long 10y project lifetime Additional BoP cost for each augmentation step Loss of revenue due to system shutdown Additional complexity for Battery Management and EMS PV Production BESS operation 53 Hours 1960 91 2 4 87 10 11 12 13 14 15 1716 18 20 21 22 23 Storage chargesStorage discharges Storage grid output BESS sizing augmentation plan To add or not to add 8 When augmentation brings in actual value Curtailment reduction Imbalance costs savings Market Participation Frequency Regulation Services provided by BESS No constraints – optimal initial size is 100MW/100MWh Requirements on size Energy Shifting - Arbitrage Peak Shaving Services provided by BESS 20 MW with 5h discharge time throughout project life 15y Requirements on sizePro ject 1 Pro ject 2 Augmentation is not needed Augmentation is the way AC augmentation Standard in MV In LV Inverter power downgrade to maintain the trafo Augmentation approaches AC vs DC I Overview of technical solutions Initial BESS configuration 3 3 3 3 DC augmentation New equipment only Sorting 3 3 Growing solution complexity Battery Inverter LV/MV trx Augmentation introduces challenges in SoC Management due to different SoH and available capacity, in particular with the DC approach Augmentation approaches AC vs DC II PROs and CONs DC augmentation Battery/BMS compatibility issues Requires PCS/HVAC oversizing Lower impact on footprint Longer plant downtimeNo impact in grid connection architecture Lower ongoing CapEx AC augmentation Freedom to choose new equipment Higher impact footprint Higher ongoing CapExPlug-n-play solution Short plant downtime More authorisations required grid studies Initial BESS configuration 3 3 10 Our approach to Augmentation 11 Optimization through an automated design tool Battery Library Project case definition Energy Assessment BESS commercial size Project features and constraints Main equipment libraries Initial technical sizing Main equipment combination input output LCOS*- optimizedalgorithm Augmentation-replacement strategy *Levelised Cost of Storage LCoS σt1 LifeNPVCAPEXt 𝑂𝑃𝐸𝑋t σt1LifeNPVDischargedEnergy,t Impact on warranties It changes degradation behavior and operating condition from original configuration. Addition effort for monitoring independently “new” and “old” batteries shall be implemented. The performance test procedure shall be modified to consider “new” and “old” components 12 EGP’s Approach The augmentation changes the performance warranty In any projects, a robust augmentation approach can be envisage during design phase to restore the system in case of early degradation or battery failure PERFORMANCE WARRANTY PRODUCT WARRANTY Battery System Battery Integration System Integration Cells, Modules, Racks, BMS Container, HVAC, Fire Suppression Inverter, Cabinet, Switchgear, Trafo, BESS SCADA Performance Warranty The agreement is intended to warrant the real available capacity Useful Energy over project lifetime in order to secure the revenue streams. Expected degradation Standard Operating scenario Flexibility Conditions Conditions that reduce the performances Performance Test Procedure Main challenges to a successful Augmentation 13 Technological and Economical question marks Capacity Degradation Main challenges to correct estimation Operational strategy Environmental conditions Product quality Performance warranties Online degradation measurement Adaptive augmentation strategy EV sector drives cost Cost monitoring with suppliers Countermeasures Cost Decrease Main challenges to correct estimation EV sector drives cost Raw material shortage Disruptive technologies Cost monitoring with suppliers Tracking sensitivity on material price Scouting alternative technologies Countermeasures EV sector drives cost Cost monitoring with suppliers Technology Main challenges to correct estimation Shift in storage paradigm Compatibility with present plant architectures Scouting/Testing alternative technologies Flexible BESS layout Countermeasures AC augmentation Standard in MV EGP strategic approach Technical solutions of today and future trend Today Future The AC augmentation is the preferred option Lower technical constrains for mixing batteries form different suppliers and different technologies It reduces the technical risks without impact on reliability of the plant It gives more flexibility to optimize the augmentation plan DC coupling - augmentation 3 The DC augmentation optimizes the integration with RES In pure energy shifting application DC-coupling can boost the project DC-coupling configuration requires a DC augmentation approach New inverter and converter topologies are becoming the key element Is augmentation a game-changer 15 Which is the impact on product and performance warranties of existing equipment 16 Thank you giacomo.mariuccienel.com