Photovoltaic energy storage sales planning plan

What is a bi-level optimization model for photovoltaic energy storage?

This paper considers the annual comprehensive cost of the user to install the photovoltaic energy storage system and the user’s daily electricity bill to establish a bi-level optimization model. The outer model optimizes the photovoltaic & energy storage capacity, and the inner model optimizes the operation strategy of the energy storage.

Why is energy storage important in a photovoltaic system?

When the electricity price is relatively high and the photovoltaic output does not meet the user’s load requirements, the energy storage releases the stored electricity to reduce the user’s electricity purchase costs.

What is the energy storage capacity of a photovoltaic system?

The photovoltaic installed capacity set in the figure is 2395kW. When the energy storage capacity is 1174kW h, the user’s annual expenditure is the smallest and the economic benefit is the best. Fig. 4. The impact of energy storage capacity on annual expenditures.

How to increase the economic benefits of photovoltaic?

When the benefits of photovoltaic is better than the costs, the economic benefits can be raised by increasing the installed capacity of photovoltaic. When the price difference of time-of-use electricity increases, economic benefits can be raised by increasing the capacity of energy storage configuration.

What is the investment cost of energy storage system?

The investment cost of energy storage system is taken as the inner objective function, the charge and discharge strategy of the energy storage system and augmentation are the optimal variables. Finally, the effectiveness and feasibility of the proposed model and method are verified through case simulations.

Where can I find a report on photovoltaic system performance?

IEC 61724-2 Photovoltaic system performance - Part 2: Capacity evaluation method IEC TS 61724-3 Photovoltaic system performance - Part 3: Energy evaluation method 138 This report is available at no cost from the National Renewable Energy Laboratory (NREL) at IEC 63019 Information Model for Availability (pending).