system

  • Energy storage and flexibility

    Chart of the week | Wider Access: BM sees annual increase in smaller participants

    In recent years National Grid ESO’s Wider Access programme has rolled out several measures to support the entry of smaller and non-traditional participants into the Balancing Mechanism (BM). This 'Chart of the week' looks at the level of new entry into the BM over the past year. Specifically, it looks...

  • Energy storage and flexibility

    Chart of the week | Cha-Cha Slide: COVID-19 & falling levels of inertia

    The level of inertia on the system is a key contributor to electricity system stability. Inertia is an attribute of the system related to the energy stored in the rotating motors of synchronous generators. It prevents system frequency from falling too quickly after a frequency disturbance (e.g. a generator trip)....

  • Energy storage and flexibility

    Australian Chart of the week | System strength: From by-product to necessity

    Last week, AEMO published a notice of fault level shortfall in North Queensland at the Ross node. This announcement represents the latest case of system strength issues in the National Electricity Market (NEM). It joins a growing list of areas where intervention (through direction or constraints) is required to ensure...

  • Low carbon generation

    Pixie Chart of the week | Germany demonstrates benefit of auction system

    Germany regularly runs auctions to subsidise renewable generation capacity. In 2020, it plans to run 20 auctions – seven solar, seven onshore wind, three biomass and three mixed wind and solar – as well as six for CHP engines, seeking nearly 7GW of capacity in total. The auctions set a...

  • Energy storage and flexibility

    Chart of the week | Imbalance Charges – A Look at More Marginal Pricing

    In November 2018 the parameters for the electricity imbalance charges calculation is are due to change under the P305 modification to the BSC. With less than five months to go until the changes take effect, we look at how system imbalance prices (SIP) are likely to evolve from November. Our...