We investigate the profitability and risk of energy storage arbitrage in electricity markets under price uncertainty, exploring both robust and chance-constrained optimization approaches.
How does energy storage arbitrage work?
Energy storage arbitrage works in a similar way - electricity is stored when the price of electricity is cheap and dispatched when electricity is expensive. Energy storage projects earn revenue from the delta between the price at which power is stored and then sold into the market when the electricity is dispatched.
Price differences due to demand variations enable arbitrage by energy storage. Maximum daily revenue through arbitrage varies with roundtrip efficiency. Revenue of arbitrage is compared to cost of energy for various storage technologies. Breakeven cost of storage is firstly calculated with different loan periods.
What is price arbitrage for electrical energy?
The concept of price arbitrage for electrical energy of Fig. 1 is based on the hourly electricity price from the California Independent System Operator (CAISO), for a typical day where hour 0 is defined as midnight (Blanke, 2018).
Using this approach, arbitrage strategies are developed herein to optimize the time of storage and regeneration in order to maximize this revenue relative to storage costs. To the authors' knowledge, this is the first study that employs arbitrage analysis and optimization on energy storage systems with a real daily electric price diagram.
Considering the uncertainty of wind and solar energy, a stochastic energy storage arbitrage model is developed to maximize its profit under the day-ahead and real-time market prices in .
How can you reduce energy storage arbitrage?
And How Can You Reduce It? Energy storage arbitrage, like a financial wizardry trick with batteries, involves storing electricity when it's abundant and cheap to release it when it's scarce and more expensive, offering significant savings on electricity bills and contributing to a greener planet by maximizing the use of renewable energy sources.