Happy Valley Reservoir (HVWWPV1)

Solar · South Australian Water Corporation · Solar PV - Single axis tracking

Dispatch stats Financials
Operational AEMO: In Service SA1 Solar - Solar NEM data · 30 days
11 MW
Registered nameplate capacity
30 days revenue
$38.0k
Capacity factor
7.5%
Revenue / MWh
$64.03
Est. SRMC
$0.00/MWh

Energy flow

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

Key information
Capacity
11 MW

AEMO status In Service
Project status Operational (AI)

SA Water news release (2022) says the Happy Valley Reservoir solar array was commissioned / in service; GEM also lists it as operating.

Region SA1
Coordinates -35.07300, 138.57200 (AI)

Latitude.to coordinates for Happy Valley Reservoir (-35.0730, 138.5720).

MLF 1.0024
DUID HVWWPV1
Owner South Australian Water Corporation
Commissioned Sep 2022
Expected closure 2041
Closure date —
Technology Solar PV - Single axis tracking
Fuel Solar - Solar
Module OEM —
Module / inverter supplier solar PV module supplier / inverter supplier
Inverter OEM —
Inverter model —
Equipment confidence low
Stats window
14 May 2026 16:45 → 13 Jun 2026 16:45 AEST

Dispatch & revenue

14 May 2026 16:45 → 13 Jun 2026 16:45 AEST

Energy revenue (× MLF)
$38.0k
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
594.1 MWh
Available
615.8 MWh
Curtailed
23.9 MWh
Curtailment
3.9%
of available
MLF used
1.0024
end of period

Revenue (× MLF)

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

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.
  • 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 fromMLF
2024-07-01 1.0043
2025-07-01 1.0024

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.
Type
Solar (tracking)
Capacity
11 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$0.00/MWh
Capex total (greenfield)
$15.08M

Shown in table
$15.08M (2026 real AUD)

Reported / source value
$14.30M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
No plant-specific construction/investment cost was found in the retrieved official and secondary sources.
Capex refurbishment
—
Capex / MW derived
$1,371,308

Shown in table
$1.37M (2026 real AUD)

Reported / source value
$1.30M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$139.2k

Shown in table
$139.2k (2026 real AUD)

Reported / source value
$132.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Calculated from the benchmark and the site capacity provided by the user.

Reference
2024 Energy Technology Cost and Technical Parameter Review Report - Solar (medium confidence)
Source recorded 08 Jun 2026
Fixed OPEX / MW-yr
$12,658

Shown in table
$12.7k (2026 real AUD)

Reported / source value
$12.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Source for the solar PV fixed O&M benchmark used for fallback estimation.

Reference
2024 Energy Technology Cost and Technical Parameter Review Report - Solar (high confidence)
Source recorded 08 Jun 2026
Variable OPEX / MWh
$0.00

Shown in table
$0.00 (2026 real AUD)

Reported / source value
$0.00 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: medium · Status: ai estimated · Capex basis: default · AI checked 08 Jun 2026

Notes
I could not find a plant-specific greenfield construction cost from SA Water or government sources in the retrieved search results. SA Water sources confirm the Happy Valley solar project was planned as around 9-10 MW, later described as approximately 12 MW, and operating by late 2020/2022; the project appears to be part of SA Water's wider Zero Cost Energy Future rollout rather than a standalone published cost announcement. Because no reported project capex was found, capex remains null rather than using a benchmark as a reported figure. Fixed O&M is estimated from AEMO/Aurecon 2024 utility-scale solar PV assumptions and scaled to 11 MW.

Sources