Converting Waste into Energy Storage Assets
Transcript of Converting Waste into Energy Storage Assets
Converting Waste into Energy
Storage Assets
Les Lange
CEO, Sizana Solutions, South Africa
OUTLOOK ON THE ENERGY
STORAGE MARKET
Key points:
• Energy storage requirement
increasing exponentially
• 15 years expected growth 6000%
• $103 Billion will be invested
Drivers:
• RE requires storage
• Legislation which promote
emission reductions
“The industry has just begun”
Yayoi Sekine, energy storage analyst
UTILITY ENERGY STORAGE
Pumped Storage
• 96% of current utility storage
• Topology limits opportunities
• Expensive and risky to develop
• Large environmental impact
• Inefficient
Emulate pumped storage, but
• Is more efficient
• Costs less
• Can be done on a smaller scale
• Improves the environment
• Can be built anywhere
ENERGY VAULT STORAGE
Charge Store Discharge
One 35 MWh tower = 8600 bricks = 301 000 tonnes
35 TONNE BRICK
High-performance concrete
High-performance concrete
Internal structure
Steel plate for lifting
Recycled waste
CONVERT COAL POWER
STATION TO RE BASE LOAD
•RE plus energy storage
equals base load
•Convert buildings and
ash dumps into bricks
•Clean environment
•Cost savings with
rehabilitation
•Other infrastructure
in place
CONVERT ASH DUMPS INTO
ENERGY STORAGE ASSETS
• Rehabilitate environment
• Energy storage for peak load
management
• Eskom needs to increase
energy storage
• Included in IRP to increase
energy storage
• Other infrastructure in place
• Many abandoned mines
• Mine dumps are health
and environmental
hazards
• Rehabilitate environment
• Energy cost savings
• Backup power
• Other infrastructure in
place
CONVERT MINE DUMPS
INTO ENERGY STORAGE
CONVERT CITY RUBBLE
INTO ENERGY STORAGE
• Rehabilitate
environment
• Backup power
• Energy cost savings
• Reduce effect of load
shedding
• 100 MW Level 1 load
shedding in Joburg
CONVERT WATER SLUDGE
INTO ENERGY STORAGE
• Rand Water e.g. produces
1000 tons tonnes/day
• Storage area filled
• Need beneficial use for it
• Can convert sludge farm
into energy storage farm
• Energy savings
• Sludge savings
• Backup power
IRP ENERGY SECTORS
• 22.9 GW of new RE
• 2,09 GW of new Energy Storage
• 31.7% of generation will be RE
• RE needs Energy Storage
• To date only Pumped Storage
• PS opportunities exhausted
• Crane storage can fill this gap
• Environmental benefits
• No leakage
• Cost effective
EV STORAGE SYSTEM
IN ACTION
DISCUSSION