AER's Consumer Data Right unitPrice fields are GST-exclusive, confirmed
by comparing a real, currently-effective EnergyAustralia contract's own
GST-inclusive rates against this plan's cached AER data: usage rates and
the supply charge all matched the cached value multiplied by exactly
1.1 (four independent figures). A real AGL bill confirmed the same
convention separately (excl-GST line items, GST added back as one
combined amount at the end). This understated every one of the ~700+
cached comparison plans' costs by ~10% relative to manually-entered
current plans (which were correctly GST-inclusive, taken from real
bills), biasing every "savings vs current" figure across the board.
Feed-in/solar buy-back rates are the exception -- confirmed GST-free in
that same contract's own terms -- so the multiplier applies only to
usage rates and the supply charge.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Confirmed against Sungrow's own docs and live-tested against a real
battery plant: SOC and charge/discharge power live at the *device*
level (getDeviceRealTimeData against the hybrid inverter's ps_key,
device_type 14), not in the plant-aggregate points used elsewhere in
this client -- querying them via the plant-level endpoint just returns
null. Battery status is fetched once per live "today" poll (not
backfilled historically) and stored in three new nullable columns,
self-migrated on startup since there's no Alembic here.
Also fixes the dashboard's self-consumption line to derive from
load - import rather than generation - export, which overstated
"solar -> house" for battery systems (a chunk of that gap was going
into charging, not the house). The live flow diagram now shows a
Battery node (SOC + charge/discharge) that stays hidden entirely for
solar-only plants like Kallangur.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
New /api/usage/live endpoint derives instantaneous-ish kW from the most
recent interval reading, shown as a solar -> house/grid flow diagram
that updates every 30s and flips direction/color between exporting and
importing. /api/usage/summary now also reports net revenue for the
selected period, reusing the existing costing engine against the
current plan.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Settings always showed the full "how to connect" steps and code-paste
form for oauth2 mode regardless of connection status, which read as
broken even when the token was live and polling successfully. Collapse
it behind a "Reconnect" toggle once connected.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
FastAPI app that pulls interval usage from Sungrow iSolarCloud (OAuth2),
caches AER Consumer Data Right electricity plan data, and compares actual
metered usage against every available plan to estimate real annual cost
(TOU, tiered feed-in, and flat tariffs).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
