Sizing, Net Billing & Installation
Size the system to your bill, not to your roof. Under net billing your exported units earn roughly Rs 11/kWh against the Rs 23.57–48 you pay to buy, so self-consumption and storage now beat export. These guides cover the DISCO application, kW-by-kW system costs, the 40-point install checklist, solar appliances, and agricultural pumping.
28 guides in this pillar · clusters M17 · How we verify ↗
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- AC-Coupled vs DC-Coupled Solar Battery Storage Guide UK
Comprehensive UK guide comparing AC-coupled retrofit battery storage with DC-coupled hybrid inverters. Review GivEnergy specs, efficiencies, and DNO rules.
Updated 18 Sept 2026 - Domestic Solar Planning Permission & Permitted Development UK Guide
Guide to solar panel planning permission in England under GPDO 2015 Part 14: Class A rooftop rules, Class B stand-alone limits, and conservation exemptions.
Updated 18 Sept 2026 - Domestic Solar PV System Sizing Guide UK
Comprehensive UK domestic solar PV sizing guide. Align rooftop array design and hybrid inverter electrical limits with Ofgem TDCV consumption benchmarks.
Updated 18 Sept 2026 - Domestic Tiled Roof Solar Mounting Systems UK: Rails, Hooks & Flashing
Guide to domestic tiled roof solar mounting in the UK: K2 SingleRail and SingleHook systems, SolarFlash weatherproofing, and static engineering.
Updated 18 Sept 2026 - GivEnergy All in One Home Battery Backup Guide UK
Comprehensive technical guide to GivEnergy All in One 2 and Giv-Gateway whole-home battery backup in the UK. Review specs, switchover times, and wiring.
Updated 18 Sept 2026 - How Many Solar Panels Do I Need UK: Domestic Sizing Guide
How many solar panels do you need in the UK: sizing rules under MCS MIS 3002, 12-panel 4.5 kWp benchmarks, 20-30m2 roof space, and 16A G98 grid limits.
Updated 18 Sept 2026 - Myenergi Eddi Solar Diverter UK: Technical Installation & Wiring Guide
Technical guide to the myenergi eddi solar power diverter: 3.68kW immersion control, CT clamp wiring, harvi wireless sensor, and gas boiler integration.
Updated 18 Sept 2026 - Myenergi Zappi Solar EV Charger UK: Technical Review & Charging Modes
Technical guide to the myenergi zappi solar EV charger: Fast, Eco, and Eco+ modes, 1.4kWh threshold, Intelligent Octopus Go pairing, and 0% VAT rules.
Updated 18 Sept 2026 - Solar Battery Storage Capacity Sizing Guide UK
Comprehensive UK solar battery storage sizing guide. Compare 5.12 kWh, 9.5 kWh, and 13.5 kWh capacities against Ofgem TDCV domestic consumption profiles.
Updated 18 Sept 2026 - UK Domestic Flat Roof Solar Mounting Guide
UK technical guide to domestic flat roof solar mounting. Explore K2 Dome 6 aerodynamic ballasting, rafter dead load limits, and wind uplift engineering.
Updated 18 Sept 2026 - UK Domestic Slate Roof Solar Mounting Guide
Essential UK guide to domestic slate roof solar mounting. Avoid slate cracking with SolarFlash weatherproofing hoods, Hallhook refits, and MCS 012 standards.
Updated 18 Sept 2026 - UK Domestic Solar PV Scaffolding and Edge Protection Guide
UK guide to domestic solar PV scaffolding and edge protection under HSE Work at Height Regulations. Covers 950mm guardrails, TG20 standards, and eaves safety.
Updated 18 Sept 2026 - UK Economy 7 Solar and Battery Storage Sizing Guide
Engineering guide to sizing solar and battery storage for UK Economy 7 tariffs. Covers Ofgem Profile Class 2 58:42 splits and GivEnergy 9.5kWh storage.
Updated 18 Sept 2026 - UK GivEnergy EV Charger Solar Integration Guide
UK guide to integrating the GivEnergy 7kW EV charger with solar PV and batteries. Covers zero-export diversion, Type B RCD, and PEN fault protection.
Updated 18 Sept 2026 - UK In-Roof Solar Mounting Systems Guide
Comprehensive UK guide to in-roof solar mounting systems. Review Viridian Clearline Fusion BBA 0032 certification, Broof(T4) fire safety, and roof integration.
Updated 18 Sept 2026 - UK MCS MIS 3002 Domestic Solar Installation Standard Guide
Essential UK guide to MCS MIS 3002 Issue 6.0 solar PV installation standard. Explore G98/G99 thresholds, BS 7671 surge protection, and handover testing.
Updated 18 Sept 2026 - UK Metal Roof Solar Mounting Systems Guide: Trapezoidal, Corrugated and Standing Seam
UK metal roof solar mounting guide. Covers K2 MiniRail MK2, MultiRail, non-penetrating standing seam clamps, rear ventilation, and 20-year warranties.
Updated 18 Sept 2026 - UK Off-Grid Solar System MultiPlus-II Guide
UK off-grid solar guide: Victron MultiPlus-II 3k and 5k inverter/chargers, 9000W surge, PowerAssist generator integration, and dual AC outputs.
Updated 18 Sept 2026 - UK Solar Inverter Replacement: Cost, Lifespan & Warranties
Understand UK domestic solar inverter replacement costs and lifespans. Review 12-year lifecycle planning, warranty economics, and modern hybrid units.
Updated 18 Sept 2026 - UK Solar Panel Low Pitch Roof Installation Guide: Down to 14 Degrees
Technical guide to installing solar panels on UK low-pitch roofs down to 14 degrees. Covers capillary action, Viridian Clearline, and Delta Exxtrem membranes.
Updated 18 Sept 2026 - UK SolaX X1-Boost G4 String Inverter Guide
UK guide to the SolaX X1-Boost G4 string inverter. Features dual MPPT 50V start-up, 200% oversizing, global MPP scan, and EREC G98/G99 compliance.
Updated 18 Sept 2026 - UK SolaX X1-Hybrid G4 Inverter Guide
UK guide to the SolaX X1-Hybrid G4 single-phase inverter. Explore dual MPPT 70V-550V voltage window, 200% DC oversizing, and 10ms EPS backup capabilities.
Updated 18 Sept 2026 - Understanding Victron VE.CAN PGN Details
Learn about Victron VE.Can PGNs, including proprietary VREG messages and standard NMEA 2000 PGNs like Binary Status Report (127501) for Victron devices.
Updated 15 Sept 2026 - Using Victron ESS Mode 2 and Mode 3 for Advanced Energy Management
How to use Victron ESS Mode 2 and 3 for external inverter control via Modbus-TCP, D-Bus, or direct VE.Bus.
Updated 16 Sept 2026 - Victron Grid Codes and Loss of Mains Detection Troubleshooting
Troubleshoot Victron inverter overload shutdowns and feed-in issues related to grid codes and Loss of Mains (LOM) detection. Learn settings and safety.
Updated 16 Sept 2026 - Victron Hubble Battery Compatibility: Setup and Settings Guide
Ensure Victron and Hubble battery compatibility by configuring CloudLink, DVCC, and fallback voltage parameters correctly.
Updated 16 Sept 2026 - Victron MultiPlus and Quattro Parallel Three-Phase System Configuration
Configure Victron MultiPlus and Quattro inverters for parallel three-phase systems: wiring, settings, and troubleshooting.
Updated 16 Sept 2026 - Victron VE.CAN: How to Change NMEA 2000 Device and Data Instances
Resolve conflicting NMEA 2000 data from Victron devices by changing device and data instances using a GX device, Actisense NMEA Reader, or command line.
Updated 9 Sept 2026
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New to this? Read these three, in order.
- AC-Coupled vs DC-Coupled Solar Battery Storage Guide UK
Comprehensive UK guide comparing AC-coupled retrofit battery storage with DC-coupled hybrid inverters. Review GivEnergy specs, efficiencies, and DNO rules.
- Domestic Solar PV System Sizing Guide UK
Comprehensive UK domestic solar PV sizing guide. Align rooftop array design and hybrid inverter electrical limits with Ofgem TDCV consumption benchmarks.
- Domestic Solar Planning Permission & Permitted Development UK Guide
Guide to solar panel planning permission in England under GPDO 2015 Part 14: Class A rooftop rules, Class B stand-alone limits, and conservation exemptions.