Rooftop Solar PV — Daily Generation, 4.2 kWp Array, 2025
Daily inverter yield from a 4.2 kWp south-facing domestic array in southern England: 2,648 kWh for the year (about 630 kWh per kWp), June delivering 341 kWh against December's 57, and the best day 19.2 kWh on Wednesday 25 June. The seasonal sweep is the sun's elevation; the day-to-day speckle is cloud. Illustrative values.
Make it your own.
title "Rooftop PV generation per day — 4.2 kWp, 2025 (kWh, illustrative)"
year 2025
# Inverter daily export + self-consumption, kWh. South-facing, 35° pitch.
# Annual 2,648 kWh ≈ 630 kWh/kWp. June 341 kWh, December 57 kWh.
2025-01-01 3.2
2025-01-02 1.5
2025-01-03 1.2
2025-01-04 3.0
2025-01-05 3.1
2025-01-06 0.9
2025-01-07 2.3
2025-01-08 2.6
2025-01-09 1.4
2025-01-10 2.2
2025-01-11 2.5
2025-01-12 1.8
2025-01-13 0.9
2025-01-14 1.7
2025-01-15 3.1
2025-01-16 3.0
2025-01-17 3.0
2025-01-18 1.9
2025-01-19 3.3
2025-01-20 3.1
2025-01-21 2.9
2025-01-22 2.8
2025-01-23 1.0
2025-01-24 1.8
2025-01-25 2.3
2025-01-26 2.3
2025-01-27 3.2
2025-01-28 2.1
2025-01-29 0.7
2025-01-30 1.0
2025-01-31 2.5
2025-02-01 4.3
2025-02-02 3.6
2025-02-03 3.9
2025-02-04 3.1
2025-02-05 3.9
2025-02-06 3.9
2025-02-07 5.1
2025-02-08 5.5
2025-02-09 1.9
2025-02-10 1.9
2025-02-11 5.1
2025-02-12 3.7
2025-02-13 2.7
2025-02-14 5.1
2025-02-15 2.0
2025-02-16 1.6
2025-02-17 2.4
2025-02-18 1.6
2025-02-19 5.9
2025-02-20 3.9
2025-02-21 3.6
2025-02-22 3.3
2025-02-23 5.4
2025-02-24 4.2
2025-02-25 1.7
2025-02-26 2.4
2025-02-27 2.2
2025-02-28 5.2
2025-03-01 2.7
2025-03-02 8.7
2025-03-03 6.7
2025-03-04 6.1
2025-03-05 4.3
2025-03-06 4.5
2025-03-07 5.7
2025-03-08 8.4
2025-03-09 3.4
2025-03-10 6.7
2025-03-11 10.1
2025-03-12 6.6
2025-03-13 2.1
2025-03-14 3.6
2025-03-15 4.5
2025-03-16 3.7
2025-03-17 7.6
2025-03-18 6.9
2025-03-19 8.2
2025-03-20 10.2
2025-03-21 7.7
2025-03-22 6.7
2025-03-23 10.2
2025-03-24 3.6
2025-03-25 6.1
2025-03-26 6.6
2025-03-27 9.2
2025-03-28 6.4
2025-03-29 6.5
2025-03-30 9.8
2025-03-31 7.3
2025-04-01 10.2
2025-04-02 14.7
2025-04-03 7.5
2025-04-04 14.0
2025-04-05 8.2
2025-04-06 4.7
2025-04-07 9.7
2025-04-08 10.0
2025-04-09 10.9
2025-04-10 10.6
2025-04-11 14.2
2025-04-12 4.2
2025-04-13 7.5
2025-04-14 11.7
2025-04-15 10.9
2025-04-16 9.6
2025-04-17 5.3
2025-04-18 11.0
2025-04-19 8.4
2025-04-20 13.5
2025-04-21 7.5
2025-04-22 10.5
2025-04-23 13.2
2025-04-24 5.2
2025-04-25 13.2
2025-04-26 12.0
2025-04-27 6.5
2025-04-28 15.1
2025-04-29 8.0
2025-04-30 3.8
2025-05-01 13.1
2025-05-02 18.0
2025-05-03 15.4
2025-05-04 16.2
2025-05-05 15.0
2025-05-06 14.6
2025-05-07 5.0
2025-05-08 7.7
2025-05-09 10.0
2025-05-10 15.0
2025-05-11 16.1
2025-05-12 14.1
2025-05-13 12.5
2025-05-14 13.1
2025-05-15 17.7
2025-05-16 16.8
2025-05-17 12.1
2025-05-18 4.5
2025-05-19 6.3
2025-05-20 17.9
2025-05-21 3.7
2025-05-22 13.0
2025-05-23 15.7
2025-05-24 13.1
2025-05-25 8.0
2025-05-26 18.0
2025-05-27 9.8
2025-05-28 14.4
2025-05-29 15.5
2025-05-30 17.2
2025-05-31 17.2
2025-06-01 14.3
2025-06-02 8.3
2025-06-03 18.0
2025-06-04 11.1
2025-06-05 5.2
2025-06-06 18.8
2025-06-07 8.5
2025-06-08 6.4
2025-06-09 7.4
2025-06-10 7.2
2025-06-11 5.0
2025-06-12 12.7
2025-06-13 4.0
2025-06-14 8.3
2025-06-15 10.2
2025-06-16 17.8
2025-06-17 12.3
2025-06-18 9.3
2025-06-19 9.5
2025-06-20 14.9
2025-06-21 17.6
2025-06-22 16.3
2025-06-23 12.5
2025-06-24 10.1
2025-06-25 19.2
2025-06-26 7.3
2025-06-27 16.2
2025-06-28 10.6
2025-06-29 18.0
2025-06-30 4.4
2025-07-01 6.9
2025-07-02 11.5
2025-07-03 8.9
2025-07-04 8.8
2025-07-05 7.9
2025-07-06 13.8
2025-07-07 7.4
2025-07-08 12.7
2025-07-09 17.8
2025-07-10 16.1
2025-07-11 11.0
2025-07-12 17.2
2025-07-13 14.0
2025-07-14 5.3
2025-07-15 10.4
2025-07-16 10.8
2025-07-17 17.7
2025-07-18 8.2
2025-07-19 15.6
2025-07-20 9.8
2025-07-21 18.3
2025-07-22 9.2
2025-07-23 15.0
2025-07-24 18.9
2025-07-25 6.1
2025-07-26 13.0
2025-07-27 18.2
2025-07-28 7.9
2025-07-29 14.7
2025-07-30 12.4
2025-07-31 12.7
2025-08-01 13.5
2025-08-02 12.2
2025-08-03 9.3
2025-08-04 13.8
2025-08-05 16.5
2025-08-06 5.3
2025-08-07 14.6
2025-08-08 11.5
2025-08-09 15.8
2025-08-10 7.8
2025-08-11 6.1
2025-08-12 8.8
2025-08-13 13.9
2025-08-14 14.9
2025-08-15 3.1
2025-08-16 14.8
2025-08-17 13.7
2025-08-18 14.7
2025-08-19 7.7
2025-08-20 12.0
2025-08-21 6.6
2025-08-22 12.4
2025-08-23 16.3
2025-08-24 12.1
2025-08-25 15.5
2025-08-26 5.0
2025-08-27 13.0
2025-08-28 7.2
2025-08-29 15.2
2025-08-30 8.2
2025-08-31 9.1
2025-09-01 6.5
2025-09-02 3.1
2025-09-03 7.3
2025-09-04 11.2
2025-09-05 8.3
2025-09-06 7.0
2025-09-07 9.9
2025-09-08 9.5
2025-09-09 10.1
2025-09-10 10.2
2025-09-11 9.0
2025-09-12 11.0
2025-09-13 2.4
2025-09-14 6.8
2025-09-15 5.1
2025-09-16 2.8
2025-09-17 7.8
2025-09-18 6.0
2025-09-19 10.2
2025-09-20 7.5
2025-09-21 5.9
2025-09-22 7.9
2025-09-23 10.9
2025-09-24 8.6
2025-09-25 5.1
2025-09-26 11.2
2025-09-27 2.3
2025-09-28 11.3
2025-09-29 11.7
2025-09-30 9.7
2025-10-01 4.2
2025-10-02 2.2
2025-10-03 4.7
2025-10-04 5.4
2025-10-05 6.4
2025-10-06 3.4
2025-10-07 5.6
2025-10-08 3.6
2025-10-09 7.1
2025-10-10 4.7
2025-10-11 7.0
2025-10-12 3.8
2025-10-13 5.8
2025-10-14 7.3
2025-10-15 3.6
2025-10-16 6.3
2025-10-17 5.5
2025-10-18 2.2
2025-10-19 4.9
2025-10-20 2.7
2025-10-21 5.7
2025-10-22 2.3
2025-10-23 4.3
2025-10-24 5.0
2025-10-25 6.1
2025-10-26 5.4
2025-10-27 5.6
2025-10-28 1.6
2025-10-29 3.6
2025-10-30 3.0
2025-10-31 5.8
2025-11-01 3.0
2025-11-02 2.8
2025-11-03 3.3
2025-11-04 2.2
2025-11-05 1.4
2025-11-06 1.7
2025-11-07 2.9
2025-11-08 4.1
2025-11-09 2.4
2025-11-10 1.2
2025-11-11 2.5
2025-11-12 0.8
2025-11-13 1.2
2025-11-14 1.3
2025-11-15 3.1
2025-11-16 1.0
2025-11-17 2.6
2025-11-18 2.0
2025-11-19 2.4
2025-11-20 4.1
2025-11-21 3.9
2025-11-22 2.6
2025-11-23 2.8
2025-11-24 3.0
2025-11-25 3.4
2025-11-26 3.0
2025-11-27 3.3
2025-11-28 2.4
2025-11-29 1.7
2025-11-30 0.9
2025-12-01 1.2
2025-12-02 2.3
2025-12-03 2.5
2025-12-04 0.5
2025-12-05 2.8
2025-12-06 1.3
2025-12-07 1.9
2025-12-08 2.4
2025-12-09 1.2
2025-12-10 1.3
2025-12-11 1.9
2025-12-12 2.7
2025-12-13 2.6
2025-12-14 2.7
2025-12-15 1.0
2025-12-16 1.0
2025-12-17 2.7
2025-12-18 2.7
2025-12-19 1.5
2025-12-20 2.4
2025-12-21 1.3
2025-12-22 1.8
2025-12-23 1.6
2025-12-24 1.7
2025-12-25 1.4
2025-12-26 2.1
2025-12-27 2.2
2025-12-28 2.2
2025-12-29 1.0
2025-12-30 1.1
2025-12-31 1.6