Idam Infrastructure Advisory Pvt. Ltd. Solar + Storage Systems – Business Models for Large Deployment Balawant Joshi, Managing Director Expert Talk on Solar, Storage & Hybrid Development 17 September 2020
Idam Infra – Service Offerings Idam Infrastructure Advisory Pvt. Ltd. 2
India’s ambitious solar target Target vs Achievement of Solar Installation 120 100 100 80 Capacity in GW 60 60 40 35.12 40 32.31 20 2.82 0 Total Solar Power Ground Mounted Solar Solar Rooftop Target Achieved 3
India can’t achieve solar target without significant storage capacity Report date/ Battery Storage need Report Name Publisher Consideration Target Year projection Considering flexibility provided by Thermal, Hydro 60 GW Developing a roadmap to a (including PSH ) and Batteries) and demand projection as flexible, low ‐ carbon Indian CPI ( with TERI done by TERI Feb-19/ 2030 electricity system: interim and NREL) Considering flexibility provided by Thermal, Hydro findings 25 GW (including PSH) ,Batteries and Demand Side Management) and demand projection as done by TERI ISGF (with Mac 67 GWh At MV/LV level Energy Storage System: Arthur 2019 / 2032 Roadmap for India : 2019-32 foundation and IESA) 142 GWh At EHV level Least- Cost Pathways for India’s Considering capacity and demand growth are based on CEA NREL May-20/2047 237 GW Electric Power Sector National Electricity Plan and 19th Electric Power Survey (CEA 2018b) Considering mid term review of NEP-I for installed capacity Report On Optimal Generation CEA Jan-20/ 2030 27 GW / 108 GWh Capacity Mix For 2029-30 taking 2021-22 as base year and EPS for Peak load and energy projection. 4
₹/kWh 10.00 12.00 14.00 2.00 4.00 6.00 8.00 - 12.20 150 NSM Batch 1 350252560125 8.80 NSM Batch 2 8.40 Orissa Phase 1 • • Reverse Auctions 8.70 Orissa Phase 2 8.30 Karnataka 8.10 Madhya Pradesh Gradual increase in Solar Capacity over the years shows its acceptance while discovering the lowest Tariff of Rs. 2.44/kwh ~ 30 GW of Solar Capacity has been allotted through Competitive Bidding Process. 150 75 226 6.50 6.50 Tamil Nadu Rajasthan Andhra Pradesh 270 8.40 Punjab Phase 1 130 8.90 Uttar Pradesh Phase 1 130 6.90 Karnataka Phase 2 100 Madhya Pradesh 500 Andhra Pradesh Phase 2 500 6.90 Karnataka 500 6.70 Telangana 100 7.20 Punjab( Capacity 5-24) 100 7.20 Punjab (Capacity 25-100) 250 6.20 NTPC Anantapur 215 8.00 Uttar Pradesh Phase 2 300 Madhya Pradesh 500 5.70 5.70 Telangana Group 1 1500 Telangana Group 2 500 Punjab 170 Uttarakhand 500 4.60 AP-500 MW Bundling 150 5.00 Haryana (State Scheme) 420 4.40 Rajasthan 420 MW 100 4.80 UP-100 MW Bundling 500 4.40 SECI MH 500 MW 100 5.10 5.40 Tariff trends for Large Scale (50 MW and above) solar projects NTPC Raj 100 MW 1200 Karnataka 1200 Jharkhand 500 4.79 NTPC Karnataka 350 NTPC Telangana 400 4.43 SECI AP 100 SECI Chattisgarh 920 SECI Karnataka 440 4.43 4.35 4.43 SECI UP 225 SECI Guj 130 NTPC Rajasthan 160 SECI UP 300 SECI Orissa 450 SECI Maharahtra 750 3.30 REWA 750 MW 250 NTPC Kadapa 500 2.44 Bhadhla 500 MW 250 2.62 Bhadhla 250 MW 1500 3.47 Tamil Nadu 500 2.66 Gujarat 25050 3.14 NTPC Any 250MW DCR 3.15 MH Mahagenco 500 2.47 SECI RJ Bhadla Ph-III 250 2.48 SECI RJ Bhadla Ph-IV 760 3.17 Karnataka KREDL 550 2.92 2.72 JNNSM- Karnataka 500 Gujarat-GUVNL 750 AP Ananthapuram-JNNSM 1000 2.71 MH-MSEDCL RPO 200 2.82 KA - Pavagada-JNNSM 25085125 MH-mahagenco Assam 3.34 UP Solar Park 500 2.85 2.70 Pavagada (Tranche VI) 2000 SECI - ISTS - I 750 SECI - Kadapa 600 SECI - ISTS - II 75 GRIDCO Odisha 2000 2.59 NTPC - JNNSM 500 2.44 GJ - GUVNL - RPO - II-R 150 Pavagada (Phase VI) 500 3.20 UPNEDA - 02 550 UPNEDA - 03 1000 2.74 MSEDCL - Phase II 500 GJ - GUVNL - Phase IV 1200 SECI - ISTS - III 750 2.48 SECI - RJ 500 2.65 2.87 GJ - GUVNL - Raghanesda Park - Ph III 100 GJ - GUVNL - Dholera Park - Phase V 250 SECI - Dondaicha Park - MH 1200 2.54 SECI - ISTS - IV 680 SECI - II - RJ 3.02 72480 UPNEDA 2.53 SECI - ISTS - VI 300 2.63 2.83 2.92 NTPC - ISTS 960 SECI - ISTS - VI 150 Tata Power - RPO 500 MSEDCL - Phase IV 12000 SECI - Manufacturing Linked Solar 500 3.17 UPNEDA 1200 2.50 SECI - ISTS - VIII 350 2.61 2.90 GJ - GUVNL - Phase VIII 2000 NHPC 350 MSEDCL - Phase V 2000 2.36 SECI - ISTS - IX 5 1170 NTPC - ISTS 700 2.78 GJ - GUVNL - Dholera Park - Phase IX 0 2000 4000 6000 8000 10000 12000 14000 MW
Economics of battery storage – Trend Recent report published by Lawrence-Berkeley National Laboratory shows that the LCOE for standalone BESS could reach Rs. 4.12/kWh by 2030. Volume weighted average battery price 1400 1160 1200 1000 899 USD/kWh 800 707 650 577 600 373 400 288 214 176 156 200 0 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Source: LBNL Idam Infrastructure Advisory Pvt. Ltd. 6
Solar Plus Storage along electricity value chain Generation Transmission Distribution Consumer Large S + S Projects Small S + S Projects Medium S + S Projects Idam Infrastructure Advisory Pvt. Ltd. 7
Solar + Storage Project Energy Storage System co-located with RE • generator can provide firm power to the grid, thus maintaining grid stability • This can reduce the fluctuation in the grid and Solar Generator Grid help in better management of the frequency BESS is co- Power is located with supplied to Solar Plant Energy Storage System co-located with RE grid to • and ESS is manage charged frequency generator can also be used to provide power through it or/and during peak periods during peak periods • Utility can get the benefit of firm power from ESS renewables or/and cheaper peak power during Renewable Energy Plant with co-located peak periods Energy Storage System Idam Infrastructure Advisory Pvt. Ltd. 8
SECI ISTS VII tender Particulars Description Particulars Description Min: 50 MW; Max. 300 MW Capacity Offered • Daily Minimum: 300 MWh Max. allowable to single entity 600 MW Power Generation • Capable of delivering 50MW in any peak hour (limited Business Model & Requirement BOO & 25 years to 6 hour blocks) scheduled by DISCOM through day PPA tenure (for project rated ahead scheduling capacity of 100 Counter Party SECI • Excess generation above 300 MWh during peak hours MW) Generation may be co-located/ different shall be compensated at off-peak rate Project Location locations. ESS has to be co-located with • Permissible shortfall up-to 15% below minimum RE energy commitment, accounted monthly, beyond 1200 MWh (equal to MW rating of which penalty is applied Peak Power ESS Capacity Solar+Wind) Generation Penalty equal to the Peak tariff or tariff paid by • Single or Multiple(s) by separate injection DISCOM to meet the shortfall in supply, whichever is Injection Point at Pooling point & having separate control higher Any excess generation over and above 10% of declared • CUF At-least 40% (annual) annual CUF will be purchased by SECI at its discretion {without any obligation to do so} at a fixed tariff of 75% Peak Power Supply Daily: Min. 6 hours, Max. 8 hours of the Off-Peak tariff Two part tariff • In case of energy supply during Peak Hours over and Excess Generation Tariff Off – peak: ₹ 2.7/kWh above the mandated energy requirement (300 MWh), Peak: ₹ 6.12/kWh and ₹ 6.85/kWh and in the event of such power being procured by the At discretion of HPD between 0:01 and Buying Utility, the HPD will be paid energy charges @ 5:59 hours Off-Peak Tariff Energy Arbitrage ISTS/STU charges such as wheeling etc. in scoope of HPD Idam Infrastructure Advisory Pvt. Ltd. 9
SECI ISTS RTC Tender Particulars Description Particulars Description Capacity Offered Min: 50 MW; Max. 400 MW Business Model & Penalty Structure Penalty for Monthly & Annual Shortfall BOO & 25 years PPA tenure Annual Shortfall >77.5% to <80% CUF <77.5% CUF Counter Party/ SECI Criteria Buying Utility NDMC (200 MW) & DNH (200 MW) 2*PPA Tariff + Tariff Generation may be co-located/ different 2* PPA Tariff (Energy Escalation removed in the Penalty (Annual) Project Location locations. ESS has to be co-located with Terms) succeeding year (upto at-least one of the generation sources 15/16 th year) RPD allowed to resize ESS until 3 years Monthly Shortfall ESS Capacity > 67.5% and < 70% CUF <67.5% CUF for > 2 months after COD (flexible to choose type) Criteria Single or Multiple(s) by separate PPA Tariff + Tariff Penalty (Monthly) Injection Point injection at Pooling point & having PPA Tariff /month * no of Escalation removed in the Calculated separate control months with shortfall succeeding year (upto Annually atleast 80% (annual) & 70% (monthly) 15/16 th year) CUF Committed Annual energy: 100% Excess Power allowed to be sold in Open Market – Excess Generation Technology & Priority to PPA requirement Technology Agnostic Interconnection > 4hrs: Gen Loss = [(Avg gen/hr during the billing • Interconnection at 220 kV or above Point Grid month) × (no of hrs of grid unavailability in particular Unavailability billing month)] Developer Scope Land, Connectivity & LTA (Compensation to Backdown: 1 st year tariff with 3% escalation Y-o-Y • Gen Compensation = 100% x [Scheduled energy × (no RE developer) till 15 th year & subsequently fixed Tariff of backdown hours during the month)] x PPA tariff thereafter Idam Infrastructure Advisory Pvt. Ltd. 10
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