Energy storage summer

What is seasonal thermal energy storage (STES)?

Seasonal Thermal Energy Storage (STES) takes this same concept of taking heat during times of surplus and storing it until demand increases but applied over a period of months as opposed to hours. Waste or excess heat generally produced in the summer when heating demand is low can be stored for periods of up to 6 months.

Can solar energy be stored in winter?

In order to overcome the mismatch between the availability of renewable, in particular solar energy, in summer and the demand of heat and electricity in winter, we are proposing a seasonal energy storage based on the aluminium redox cycle (Al 3+ → Al → Al 3+).

How can thermal energy storage reduce energy demand?

An effective method of reducing this energy demand is the storage and use of waste heat through the application of seasonal thermal energy storage, used to address the mismatch between supply and demand and greatly increasing the efficiency of renewable resources.

Why is long term energy storage important?

Long term energy storage will be essential for the energy transition, especially for countries with a high heat demand in winter, but limited potential to increase renewable energy generation or import renewable energy in this season at affordable cost. 4.1. Energy storage capacity of aluminium Aluminium has a high storage density.

Why is seasonal energy storage important?

Energy storage at all timescales, including the seasonal scale, plays a pivotal role in enabling increased penetration levels of wind and solar photovoltaic energy sources in power systems.

What is seasonal storage?

Seasonal storage is a form of storage technology that typically charges during over-production of electricity from renewable energy sources during summer and discharges in winter, when electricity demand is large and renewable electricity production, specifically solar PV, is low.