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Bram House · Aadorp, Netherlands · 3DxVERSE building-level twin

Twinlink.eu · Energy Analytics

Bram House building-level meters

Charts, time ranges, and retrofit scenarios — press Esc or Back to twin to return.

Power bought vs sold

How much electricity came from the grid each day, and how much you sent back (e.g. from solar).

Overall balance

Your total power bought vs sold in this period — a quick snapshot of grid dependence.

Is usage going up or down?

Smoothed daily trend — rising means you are using more from the grid over time.

Which days use the most?

Your typical electricity use on each day of the week.

Net grid balance — were you buying or selling?

This shows the difference between power bought and power sold each day.

Think of it as your daily electricity “bill balance” with the grid:

  • Blue bars (above zero) — you used more than you produced. The building drew power from the grid.
  • Green bars (below zero) — you produced more than you used. Extra power went back to the grid.

Calculated as: power bought − power sold. Zero means they balanced out that day.

Day-rate vs night-rate use

Split between peak (day) and off-peak (night) tariff — useful for spotting when most power is consumed.

Buying vs selling days

How many days you were a net buyer from the grid vs a net seller back to it.

Monthly summary

Total power bought and sold per month.

Technical details (for advanced users)

Peak power draw

Highest power demand recorded each day.

Power sent to the grid

Daily surplus exported — usually from solar when production exceeds building use.

How much did your own system help?

When this line is higher, more of your electricity need was covered by on-site generation.

Best days for solar export

Which weekdays typically send the most power back to the grid.

Grid flow vs. battery capacity

Grid import, grid export, and battery state of charge on the same timeline. Export spikes that line up with a battery already at 100% are solar being sold back instead of stored — the clearest sign that extra battery capacity would pay off.

"Estimated current capacity" is back-calculated from real charge/discharge energy vs. SoC change, not assumed. To size a larger battery and see the projected saving, use the Scenarios tab.

Battery level

How full your home battery was over time (100% = fully charged).

Battery activity

Daily charge stored vs energy released — shows how actively the battery is used.

Battery daily swing

How much the battery level changed each day — larger swings mean heavier use.

Seasonal comparison

Average daily grid import/export by season, across the full period on record — independent of the time-range selector above.

Seasonal battery cycling — a wear proxy

How hard the battery cycles each season (daily swing % and total kWh charged/discharged). Seasons with deeper, more frequent cycling put more wear on the battery than seasons where it mostly sits idle — useful context alongside the estimated capacity above.

Gas use

Daily gas consumption.

Gas — typical weekdays

Average gas use per day of the week — helps spot heating patterns.

Water use

Daily water consumption.

Water — typical weekdays

Average water use per day of the week.

Retrofit & what-if scenarios

Model changes against your real historical meter data — not generic averages. Adjust sliders to see estimated bill impact, payback, and CO₂ reduction before investing in extra solar, battery storage, or a heat pump.

Configure scenario

All results are recalculated instantly from the same CSV period as the charts above.

0 panels
0 kWh

Projected annual outcome

Decision briefing

Period energy costs, indoor air exposure hours, and fixed retrofit packages for side-by-side comparison. Use Print briefing for a meeting handout (browser print / PDF).

Energy cost (€)

Daily bill from grid import, feed-in credit, and gas — same prices as Scenarios.

IAQ exposure (7-day history)

Elevated = CO₂ > 800 ppm · Critical = CO₂ > 1000 ppm. Hours summed across rooms.

Retrofit package comparison

Fixed packages (not live sliders). Comfort is a heating comfort proxy (1–5) — not measured IAQ.

LSTM utility forecast

Precomputed 30-day LSTM outlook per meter. Trained offline with a chronological 80% / 10% / 10% split, saved as CSV, and loaded here on request — no training in the browser.

Loads the saved LSTM forecast CSV for the selected meter.

Twinlink.eu · Indoor Air Quality

Bram House room sensors

7-day hourly history · trends, alert rules & 3D replay

Room-level CO₂, temperature & humidity history — set alert rules, then replay any hour on the 3D model.

CO₂ · temperature · humidity

Hourly readings for the selected room. Click a point to replay that moment on the twin.

Alert rules

Toggle rules on or off. Violations appear live and during IAQ replay.

Active alerts (live)

Current readings evaluated against your rules.

Building-wide CO₂ replay

Average CO₂ across all rooms — click to scrub the 3D twin, or use the bottom bar.