ESS can help stabilize the intermittent renewable power by alternately charging and discharging and reduce curtailment of renewable generation as well as helping asset owners and market participants to avoid the risk of incurring penalties for imbalances and better bid in the electricity markets.
A stable frequency is essential to ensure the effective operation of the power systems and the customer appliances. However, frequency changes are inevitable due to the power mismatch during peak hours particularly. With the increasing penetration of renewable energy (RE) especially solar photovoltaic (PV) in the grid, this decreases the grid inertia, the fluctuating power production contributes to the increased occurrence of significant power mismatches.ESS is able to carry out frequency regulation (FR) effectively by managing power surplus/shortage to stabilize the grid.
ESS can realize the grid peak regulation by flexible energy control, generation asset owners can store electricity during off-peak periods and discharge during peak periods to regulate peak demand level and effectively reduce the instantaneous grid stress.And as a result keep the balance of the grid.
Different parts of the European transmission system use different voltages standards.To be safe for electricity use, the grid voltage must remain stable (changing within 5% of the standards) at all times, , ESS stations can produce or re-absorb excess energy as reactive power, keeping the overall system reliable.
The Capacity Market (CM) was introduced to manage security of electricity supply and safeguard against the possibility of future blackouts. In return for capacity payments revenue, market participants must deliver energy at times of system stress, or they will face penalties. As an important energy capacity provider, generators collaborated with ESS can provide steady and controllable energy to fit into the market , ensuring investors' long-term revenue stream.
The wholesale electricity price is fluctuating all the time, so a flexible participation in the market is the key to maximize revenue.By alternately charging and discharging, ESS enables market participants to optimize trading strategies in time to maximize returns.
PV systems generate most of the energy during the middle of the day, so all surplus power is either wasted or sold back to the grid with very low value to the owner. ESS can intelligently store surplus generated power during the day so that the owners can benefit from the clean energy at times most convenient.
Owners can save money by avoiding peak electricity rates by storing power during off-peak times and discharging stored energy during peak times.
In rural areas where the power grid hardly covers, or areas with frequent extreme weather events like forest fires, hurricanes. ESS is the perfect solution to mitigate unexpected power outages by providing continuous clean, safe and reliable electricity.
An off-grid system is a system that is not (or mostly not) connected to grid power and is used to supply the total energy needs of the complete independent energy system.PV-ESS is the best answer to off-grid solution.
A micro-grid is a local energy grid with control capability, which means it can disconnect from the traditional grid and operate autonomously.A micro-grid can be powered by distributed renewable resources, generators and ESS.
The combination of several flexible production and consumption units, controlled by a central intelligent system, is the core behind a Virtual Power Plants (VPP) .VPP can respond to different kinds of demand response requests from the grid, benefiting both the owners and other participants connected to the local grid. ESS is the perfect solution to make your power flexibly available for ancillary services market and wholesale electricity market through VPP to achieve maximum revenue.