Sources, checked 3 October 2026
Sources for our figures
Every figure on this site links to one of these sources. We check them every quarter.
S2 EcoFlow OCEAN 2 Single-Phase
S3 EcoFlow OCEAN 2 Plus Single-Phase
S5 EcoFlow OCEAN 2 Three-Phase
S7 EcoFlow PowerPulse 2 EV charger
S6 EcoFlow OCEAN 2 battery warranty policy, V1.7
S6b EcoFlow home battery installation
S12 Eleven FAQ
S14 Eleven North Sea inverters
S15 Eleven Celtic Sea inverters
S21 NIE Networks: G98/NI limits
S22 Power NI: solar grants and funding
S27 Utility Regulator: NISEP schemes 2026-27
S29 Power NI: business solar PV
S30 Invest NI: Energy Efficiency Capital Grant
S31 GOV.UK: Annual Investment Allowance
S33 DAERA: Sustainable Farming Investment Scheme items
S34 NIE Networks: G99/NI Fast Track
S35 nidirect: support to generate your own electricity
S40 DESNZ: Regional renewable electricity in 2025 (NI solar load factor 9.4%)
S41 DESNZ: Regional renewable electricity in 2024
S42 DESNZ: Solar PV cost data 2025-26
S43 solar.org.uk: DESNZ 2025-26 median costs per kW
S44 pv magazine: DESNZ 2024-25 small-scale solar costs
S45 pv magazine: UK solar cost per kW falls (June 2026)
S46 Energy Saving Trust: solar panels advice (battery £5,000 to £8,000)
S47 Utility Regulator: Power NI tariff review, July 2026 (32.52p ex VAT, 3,200 kWh typical use)
S48 comparesolarni.com: NI energy prices, October 2026
S49 Power NI: microgeneration export rate 11.88p, 1 Oct 2026 to 30 Sep 2027
S50 Power NI: export price applies to generators up to 50 kW
S51 DESNZ: Quarterly Energy Prices, June 2026 (business average 24.14p)
S52 energyplus.co.uk: UK business energy price index
S53 McKenna, Pless and Darby (2018): solar self-consumption in UK homes, Energy Policy
S54 Self-consumption guidance MGD 003
S55 HMRC: VAT on energy-saving materials in NI (0% to 31 March 2027)
S56 Utility Regulator: NISEP list of schemes 2026-27 (20% grant, up to £30,000)
S57 Power NI: business solar PV under NISEP
S59 Teagasc: Dairy farm energy fact sheet (42.34 Wh per litre)
S60 LONGi: Hi-MO 7 warranty (1% first-year degradation)
S61 BRISK Solar: typical installed prices, October 2026. 10 × 440 W panels (4.4 kW, single-phase): £4,000 to £5,000 without a battery, £7,000 to £10,000 with a battery.
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