Smart Energy Management Platform for buildings that want to soften their load on the grid, keep warm and manage costs. Sign in to view the live data and controls.

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WattDodger Estate Control
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Estate dashboard

A working olive grove,
wired as an energy testbed.

📍 −41.22, 175.46 · Martinborough 🫒 400 trees · 5 varieties ⚡ Off-grid solar + battery · weather-coupled control

Monitor the house when you're away, hibernate the building between visits, and watch the grove's microclimate — all on one panel.

Vital signs

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Vacation days left
House returns to occupied mode in — days.
Next booking —
Set room temperature
—°C
Target the building should hold.
Actual room temperature
—°C
live sensor · main living room
Heating Boost
Pump heats on its setpoint, ignoring tariff / solar.

Building mode

runs a Python routine on the house server
Current mode unknown — waiting for the house to report in.

Heating schedule

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Next pre-warm
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Weather forecast

Home Heat Status

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Heat pump operations

Thermal learning

MODEL C dT/dt = −U(T − Ta) + Q  [kW] HEAT LOSS T(t) = Ta + (T0 − Ta) e−t/θ, θ = C/U  [h] HEAT GAIN r = Q/C  [°C/h] T∞ = Ta + θ r  [°C] PRE-WARM t = θ ln[ (T∞ − Tprep) / (T∞ − Tocc) ]  [h]
Modelthe lumped-RC energy balance everything else derives from: the house heat store C rises with pump heat Q and falls with fabric losses U(T−Tₐ).
Heat lossthe pump-off cooling curve. The learner fits θ from sun-free coasting spells (how fast the empty house drifts toward outdoor) — used to judge how long stored heat lasts and how early to start heating.
Heat gainr is the heating rate the pump actually achieves (learned from pump-on spans); T∞ = Tₐ + θr is the temperature it would settle at running flat-out at the outdoor temperature.
Pre-warmthe lead time t before arrival to lift the house from the preparing hold Tprep to the occupied target Tocc — drives the top-up minutes.
T, T₀indoor temperature — now / at the start of a fit span (°C)
Tₐoutdoor (ambient) temperature (°C)
T∞steady-state temperature the house would settle at with the pump running continuously at outdoor Tₐ — the asymptote of the heat-up curve (°C)
Tprep, Toccpreparing hold 16.5° / occupied target 20° (°C)
Chouse thermal capacitance — heat stored per degree (slab + fabric) (kWh/°C)
Uenvelope heat-loss conductance — heat lost per degree of indoor−outdoor gap (kW/°C)
Qheat power delivered by the pump (kW)
θfree-cooling time constant C/U — the e-folding time to coast toward outdoor (h, learned)
rgross heating rate Q/C — °C/h the pump adds before losses (°C/h, learned)
telapsed time / pre-warm lead time (h)
Solar gain: θ is fit only from coasting samples with PV below 200 W, so a sunny spell (which slows cooling) can’t make the house look better-insulated than it is. The heating-rate fit uses active pump-on spans (usually cold / dark). Passive solar gain is not folded into these constants — it is modelled separately in the charge plan (the sunshine overlay on the ±24 h chart).

Energy

Pool & spa

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Heat the pool / spa sets the pool/spa target (shared HX) for a period, then returns to 6°C — wear-free

SmartGrid

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Emergency Power

Block heat pump force SmartGrid Blocking — stops the pump (e.g. to spare the battery on backup power). Wear-free; stays on until cleared.

Charge plan & savings

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Tuning

live strategy knobs · applied on the next scheduler run
Tuning parameters unavailable — the house may be offline.

Configuration

per-house settings & hardware · applied on the next run / restart
Configuration unavailable — the house may be offline.

Hardware & comms

Pause device polling frees the pool / inverter / meter so their official apps can connect — control keeps running

The property

satellite · click a zone for detail
Olive blocks Energy & sensing Buildings overlays are data-ready — wire them to live feeds in OVERLAYS[]

The grove

five varieties · planted as a research block

Four hundred trees double as instruments. Each variety has its own water demand, canopy and cold tolerance, so the grove is a living dataset for irrigation scheduling, evapotranspiration models and the solar-and-battery loads that pump and process the harvest.

Rows are laid north–south to even out the long Wairarapa light, and soil-moisture and sap-flow probes feed the same panel that runs the house.

400Trees
5Varieties
N–SRow aspect