Kevin Watson

Project Dashboard

Wattson

Home Energy Intelligence Platform

Aggregated public metrics for a personal energy analytics platform combining validated solar, battery and household energy summaries.

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Financial KPIs

Financial performance

Calculated from validated SolaX generation data and historical Octopus import and export tariffs. Updated monthly.

Lifetime financial benefit

£4,714.75

Investment recovered

36.3%

Avoided import value

£3,071.53

Export income

£1,643.22

Simple payback

April 2032

Discounted payback

May 2035 Using a 5% opportunity-cost rate

Investment recovery

Against a £13,000.00 installation cost.

36.3%
Recovered amount
£4,714.75
Remaining amount
£8,285.25
Progress
36.3%

System Overview

About the system

  • 16 x 400 W panels
  • 6.4 kWp installed capacity
  • SolaX X1 Hybrid G4 inverter
  • 6 kWh SolaX battery
  • Approximately due-south orientation
  • Approximately 38° roof pitch
  • No significant shading
  • Midlands, UK
  • Octopus Flux tariff

Energy KPIs

Energy performance

Lifetime generation

22,861.7 kWh

Lifetime self-consumed energy

10,441.2 kWh

Lifetime export

12,420.5 kWh

Self-consumption percentage

45.7%

Latest Reporting Month

June 2026

Reporting month: June 2026 · Data quality: validated

Generation

823.3 kWh

Avoided import value

£130.69

Export income

£43.94

Total financial benefit

£174.63

Tariff What-if

What if I changed tariff?

These comparisons reprice the energy my home actually imported and exported over a representative measured year. They do not assume that household, battery or EV behaviour changed.

Flux

£805.57
Baseline measured-flow cost

Agile + Agile Outgoing

£716.69
Compatibility unconfirmed £88.88 lower than Flux

Agile + flat Outgoing

£598.96
Compatibility unconfirmed £206.61 lower than Flux

Monthly seasonality versus Flux

Positive means Flux was cheaper; negative means the alternative was cheaper.

Agile + Agile Outgoing Agile + flat Outgoing
July '25
July '25: +£15.62 July '25: -£4.43
August '25
August '25: +£15.46 August '25: -£14.59
September '25
September '25: -£1.14 September '25: -£20.36
October '25
October '25: -£24.56 October '25: -£29.39
November '25
November '25: -£31.34 November '25: -£33.82
December '25
December '25: -£42.04 December '25: -£43.21
January '26
January '26: -£19.27 January '26: -£21.08
February '26
February '26: -£29.49 February '26: -£33.55
March '26
March '26: -£8.98 March '26: -£11.84
April '26
April '26: +£9.58 April '26: -£6.25
May '26
May '26: +£13.06 May '26: +£6.59
June '26
June '26: +£14.22 June '26: +£5.34

Tariff-aware battery optimisation is simulated and was not actually carried out.

Energy Flow

Lifetime flow overview

A simple proportional view of generation, self-consumption, export, and public financial-reporting energy totals.

Methodology

Energy totals come from validated SolaX historical reports. Financial values use tariff-covered Octopus unit-rate calculations.

The latest published snapshot covers reporting month June 2026, published in July 2026.

Calculations exclude standing charges, system financing, maintenance, degradation and opportunity cost.

Phase 1 runs from SolaX data through validation and canonical metrics, then into Octopus tariffs and financial modelling, privacy-safe monthly summaries and this public website. Detailed live weather, household flows and forecasts remain private.

Data Coverage and Quality

Coverage dates
Reporting month June 2026; publication month July 2026
Data quality
validated
Nominal recovery
36.3%
Discounted recovery
33.03%
Financial status
Validated monthly financials.