Summerfield BESS (SMFBESS2)

BESS · CI Summerfield BESS Pty Ltd (ACN 656 223 773) as trustee for the CI Summerfield BESS Trust · Storage - Battery

Dispatch stats Financials

Construction AEMO: Publicly Announced SA1 Other - Other NEM data · 24 hours

240/960 MW

Researched capacity / storage

24 hours revenue

$-241

Capacity factor

-0.3%

Revenue / MWh

—

Est. SRMC

$1.50/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. SA1 regional price (RRP) on right axis.

Capacity (AI)

240 MW / 960 MWh

Energy-Storage.news (2024) reports the Summerfield Battery as 240MW/960MWh; Enerven project page describes two 120MW BESS facilities.

AEMO status Publicly Announced

Project status Construction (AI)

Enerven project page (2024-2026 delivery timeframe) and ESCOSA licence application for two 120MW BESS plants at Tepko.

Region SA1

Coordinates -35.18300, 139.01000 (AI)

ESCOSA licence application (2026) states the site is located at Hoffman Road, Tepko.

DUID SMFBESS2

Owner CI Summerfield BESS Pty Ltd (ACN 656 223 773) as trustee for the CI Summerfield BESS Trust

Commissioned Dec 2025

Expected closure 2046

Closure date —

Technology Storage - Battery

Fuel Other - Other

Battery OEM Tesla

Battery platform / chemistry Megapack 2XL

Inverter OEM Tesla

Inverter / PCS model Tesla Megapack inverter/PCS (integrated)

Equipment confidence low

Dispatch & revenue

02 Aug 2026 01:55 → 03 Aug 2026 01:55 AEST

Energy revenue (× MLF)

$-241

FCAS revenue (× MLF)

FCAS volume

— MWh

Dispatched

-16.5 MWh

Available

— MWh

Curtailed

16.5 MWh

Curtailment

—

of available

MLF used

—

end of period

Revenue (× MLF)

Estimated $ per interval — energy (RRP) and FCAS (regional FCAS prices), both × MLF.

🔋 State of charge

Stored energy at the start of each 5‑minute interval (AEMO INITIAL_ENERGY_STORAGE). Available up to the latest next‑day dispatch file.

0.0 MWh 0%

at 02 Aug 04:00 · of 480 MWh registered

Methodology & assumptions

Dispatch & availability — AEMO Next Day Dispatch UNIT_SOLUTION (5‑minute intervals). Intervention intervals excluded.
Regional price — dispatch_price RRP matched by settlement time and NEM region (from generator registry).
Energy revenue (× MLF) — cleared MW × (5/60 h) × RRP × MLF.
FCAS revenue & volume — cleared FCAS MW from DISPATCHLOAD (raise/lower 6s, 60s, 5min, reg) × (5/60 h) × regional FCAS price × MLF. Volume is total FCAS enablement MWh across services.
State of charge — INITIAL_ENERGY_STORAGE (MWh at interval start) from UNIT_SOLUTION, published for bidirectional/storage units. Next-day data — the SOC line lags real time by up to a day.
Curtailment — estimated economic curtailment when availability exceeds dispatch target: max(0, availability − cleared) × (5/60) MWh.
Not settlement — estimates only. AEMO settlement applies DLF, rebids, constraints, and other factors not modelled here.

MLF history (AEMO daily)

Effective from	MLF
2026-06-30	0.9998
2026-07-01	1.0008

Financial overview

2026 real AUD. Monetary values are CPI-adjusted to 2026 real Australian dollars. Greenfield capex uses AEMO benchmarks when plant-specific cost is unknown.

Capex total (greenfield) default	$336.00M Shown in table $336.00M (2026 real AUD)
Capex refurbishment	—
Capex / MWh storage default	$350,000 Shown in table $350.0k (2026 real AUD)
Fixed OPEX (annual)	—
Fixed OPEX / MW-yr default	$25,000 Shown in table $25.0k (2026 real AUD)
Variable OPEX / MWh default	$1.50 Shown in table $1.50 (2026 real AUD)
Fuel cost / GJ	—
Heat rate GJ/MWh	—

Confidence: unknown · Status: needs review · Capex basis: unknown