frequency

  • Commercial and market outlook

    How much Raise FCAS is needed as inertia reduces?

    The Step Change scenario in the 2022 Integrated System Plan (ISP) is targeting 83% renewable energy generation in the NEM by 2030-31. By then, around 79GW of VRE resources (wind, utility solar, and distributed PV) is expected to have been installed to help replace the 14GW capacity of synchronous generation...

  • Commercial and market outlook

    FCAS not dead?

    A couple of months ago, AEMO released the final Inputs, Assumptions, and Scenarios Report (IASR) that contains the basis of all planning publications for the next few years.  The changing electricity consumption and generation pattern in the NEM is introducing new challenges to the operation of the energy system; minimum and...

  • Energy storage and flexibility

    Chart of the week | Grand unveiling: Dynamic Containment goes live

    At 11pm on 1 October National Grid ESO debuted its new frequency response service, Dynamic Containment (DC). This is the first in a suite of new faster-acting response services, designed to address significant frequency deviations when they occur on the transmission system.   The roll-out of this new post-fault response...

  • Commercial and market outlook

    Chart of the week | It’s the final countdown…2109 in review

    As 2020 approaches we trade in our reports for gift wrapping and our coffee is set aside for mulled wine. Let’s take a moment to reflect on the topics of 2019 that have garnered the most interest from our complimentary Chart of the Week publication. Our popular weekly publications are...

  • Energy storage and flexibility

    Chart of the week | BFG: Big Frequency Game

    Since last Friday’s (9 August’s) power blackout there has been considerable interest in how National Grid Electricity System Operator (ESO) balances power demand and supply. Terms such as frequency, rate of change of frequency (RoCoF) and inertia have all gained in currency. This Chart of the Week shows the distribution of...

  • Energy storage and flexibility

    Chart of the week | FFR tender results surprises

    On 16 October, National Grid ESO published its monthly tender results for the Firm Frequency Response (FFR) service. Stiff competition from participants, including battery storage projects and the influx of aggregators, have led to an oversupplied service. This has seen the prices realised fall and stagnate. This week look into...

  • Energy storage and flexibility

    Chart of the week | Battery overload: Storage and the FFR market

    Announcements of new grid-connected battery developments seem to occur on an almost daily basis.  Many of these developers are looking to enter the Firm Frequency Response (FFR) market. This is primarily due to the potential value as well as it suiting the characteristics of batteries. In this week's Chart of...