Peak Energy Management (PEMa) System November 2019 Demand-Supply - - PowerPoint PPT Presentation

Peak Energy Management (PEMa) System

November 2019

200 400 600 800 1000 1200 1400 1600 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Wet Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand 200 400 600 800 1000 1200 1400 1600 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Dry Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand

Demand-Supply – 2018

Why Himalayan Solar?

Hydro and Solar – Complementary resources

• In monsoon season – there is

plenty of cloud cover and

• rainfall. High production from

hydro and low production from solar plants.

• During the winter, the low

production from hydro plants are offset by high production from solar plants. There are less clouds and despite shorter days, solar plants generate for

• ver 8 hours.

2 4 6 8 10 12 14 50 100 150 200 250 300 350 Average hours of sunlight recorded Average recorded rainfall (mm) Hydro Solar

• Fig. Solar seasonal complementarity

The Himalayan Environmental Crisis

Black Carbon

Micrograms/ m2/year

• Himalayas has third largest store of frozen water
• n earth after the North and South poles, 95% of

the glaciers are melting.

• Region with highest concentration of black

carbon on earth (see map).

• These deposits are caused by soot, emitted from

wood, diesel and coal-fired power.

• Glaciers feed rivers connecting 600 million
• people. This vulnerable population is the densest

pocket of Extreme Poverty (World Bank) on earth.

• Fig. The regional accumulation of black carbon
• Renewable energy generation to offset fossil fuel imports would immediate reduction in Black Carbon
• emissions. It takes only one layer of snowfall to cover dark deposits caused by soot emission.

The Solution Solar and Energy Storage Systems (ESS)

• PEMa is Peak Energy Management solution
• A bespoke system for the electricity needs of Nepal building
• n Solar PV, Hydro spillage and Battery storage.
• Dispatching non-intermittent power to the dry season base

load deficit as well as to daily-peak load.

• “Time-shifting” power from the daytime to evening peak

and storing power from night-time for the morning peak.

• Taking just about 2 years from PDA signing, with modular

expansion possible in 6-12 months - Short time to market.

• Intermittency and grid instability solved with BESS;
• INPS support with ancillary services;
• Delivering 150 MW PV + 20 MW storage capacity in phase 1

and up to 750 MW PV + 100 MW storage capacity by 2025.

PEMa for Nepal

Why Batteries?

• Energy Storage Systems (ESS) or

“battery storage”, has been coined as the next disruptive technology in the power sector.

• PV (Photovoltaic) and ESS combined

can maintain a predefined level of power for extended periods of time by time-shifting generation (fig A).

• A PV + ESS system can also maintain the

frequency stability to the grid which provides consistent baseload supply from traditionally intermittent sources like PV and wind.

• Lithium ion battery costs are down to

80% of what they were in 2010, making implementation economically viable.

Fig A. Battery (ESS) time-shifting/capacity firming Fig B. Battery Frequency control

2000 4000 6000 8000 10000 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Peak Electricity Demand (MW)

Nepal Electricity Demand Forecast

Nepal Electricity Authority Water and Energy Commission Secreterait Investment Board of Nepal Historical 10% annual growth in historical demand

Demand Forecast Projection

200 400 600 800 1000 1200 1400 1600 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Wet Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand 200 400 600 800 1000 1200 1400 1600 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Dry Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand

Demand-Supply – 2021

500 1000 1500 2000 2500 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Wet Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand 500 1000 1500 2000 2500 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DEMAND/SUPPLY(MW) HOURS IN DAY

Daily Demand/Supply Curve – Dry Season

IPP Generation RoR Generation Peak RoR Storage Import PV Generation Battery Storage Load Shedding Demand

Demand-Supply – 2025

Development Impact Potential

Sustainable Development Goals

Increasing Nepal’s per capita electricity consumption from 150 to 300 kilowatt hour (kWh) After 8 years of commercial operation solar will become cheaper than energy imports The project will provide sustainably jobs for 2,500 during construction and 625 jobs during operation, contributing towards economic growth in various districts Developing an industrial base and expertise in solar and battery technologies Providing sustainable electricity supply across Nepal In its first phase, our project will offset ~249,600 tonnes of CO2 in phase 1, and ~1,300,312 tonnes of CO2 by 2022 after the final stage

Direct Impact Indirect Impact

Thank you