Earth Notes: Eddi Solar PV Diverter Top-up Dataset

Auto-updated 2022-05-16.
Various stats for PV diversion and low-carbon-grid top-up of Sunamp Thermino. #heatBattery #microgen #dataset
Collected logs from the myenergi eddi heat-battery diversion subsystem, including grid frequency response.

Various stats are gathered from the eddi (via the Internet-based API), including:


Heat-battery target and eddi state:

recent heat-battery top-up target and related data


Current Month Eddi/Thermino kWh

2022-05: days=15.5, heat battery mean kWh/d=4.0 (divert/d=3.8, boost/d=0.2).

Recent Month Eddi/Thermino kWh

2022-04: days=30.0, heat battery mean kWh/d=4.1 (divert/d=4.0, boost/d=0.1).

Recent month's daily inputs to the heat battery by divert from PV, and boost from grid:

recent heat-battery daily input kWh by divert and boost

2022-04-18: Reading Bias

While PV is producing, and at other times when the Enphase ACB is carrying load and balancing grid flow to close to zero, the eddi reports up to ~90W import. Standing watching the LED indicators on the import and export supply meters at ~9am today, they indicated slight export (or nothing) while the eddi display was showing intermittent imports of up to ~200W. So far I trust trust the accuracy of the eddi least out of the Enphase and the supply meters. Which is not to say that the eddi is horrible!


16WW myenergi eddi stats
16WW heat battery energy diversion from solar PV and top-up from grid and other myenergi eddi stats.
heat, heat-battery, Sunamp, Thermino, top-up, storage, grid, carbon, intensity, myenergi, eddi, London, UK
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temporal coverage
spatial coverage
UK centre 51.406696N,-0.288789E elevation 16m
directory of 10-minute myenergi eddi stats files named YYYYMMDD.log and frequency-response log records named YYYYMMDD.freqResp.log
directory of batched monthly 10-minute eddi stats files named YYYYMM.log.gz, batched frequency response files named YYYYMM.freqResp.log.gz, monthly by-day summaries of eddi energy sent to the heat battery by diversion and boost named YYYYMM.daily.csv
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16WW Dataset
this dataset is licensed under CC0, ie it is effectively public domain; if you make use of this data, attribution is welcome but not obligatory