Strategies for combined operation of PV/storage systems integrated into electricity markets

Abstract

The increasing share of photovoltaic (PV) power in the global energy mix presents a great challenge to power grid operators. In particular, PV power's intermittency caused by varying weather conditions can lead to mismatches between energy production and expectation. Battery Energy Storage Systems (BESS) are often put forward as a good technological solution to these problems, as they are able to mitigate PV power forecast errors. However, the investment cost of such systems is still high, which questions the benefits in relation to the cost of using these systems in operational contexts. In this paper, we compare several strategies to manage a PV power plant coupled with a BESS in a market environment. They are obtained by stochastic optimization using a Model Predictive Control (MPC) approach. This paper proposes an approach that takes into account the aging of the BESS, both at the day-ahead level and in the real-time control of the BESS, by modeling the cost associated with BESS usage. As a result, the BESS arbitrates between compensating forecast errors and preserving its own life expectancy, based on both PV production and price scenarios derived from probabilistic forecasts. A sensitivity analysis is also carried out to provide guidelines on the optimal sizing of the BESS capacity, depending on market characteristics and BESS prospective costs.

Optimal investment and operation of a microgrid to provide electricity and heat

“…The MGs include inflexible loads, RES and conventional generation and the main reasons for uncertainty in MGs are RES and loads, which increase the cost of MG operation [24,32,33]. In [34], the amount of power generation is assumed to match the predicted value, which indicates that the uncertainty has not been calculated.…”

Influence of Business Models on PV-Battery Dispatch Decisions and Market Value: A Pilot Study of Operating Plants

“…Although empirical data to answer these questions are sparse, studies based on models are not. Carriere et al [6] compare the potential increase in revenue from adding a battery to a PV system in France when used to either reduce imbalance charges or shift energy from low value to high value times of day, accounting for uncertainty. DiOrio et al [7] develop a flexible model to evaluate the dispatch and design of PVbattery hybrid plants, including AC-or DC-coupled systems.…”

Dual‐mode magnetically integrated photovoltaic microconverter with adaptive mode change and global maximum power point tracking

“…Renewable energy resources can be a viable alternative for fossil fuels due to their clean and cost‐effective features [1]. Power electronic converters are the key components of renewable energy systems.…”