Explainers
The tech behind the panels and the paperwork, without the marketing spin: cell types, inverters, batteries, orientation, VPPs and grid rules.
Design
Modules, architecture, orientation and system choices.
Batteries & grid
Storage, export limits and energy-market behaviour.
Troubleshoot
Symptom-led playbooks with a clear safety boundary.
Design
HJT Solar Technology, Explained
How heterojunction cells use passivating contacts, what the architecture can support, and which exact-module figures installers must verify.
4 min readCell ArchitectureSolar Cell Busbars & Multi-Busbar Design
How fingers and collectors balance shading and resistance, why conductor count is not a quality score, and what installers should verify.
4 min readSystem DesignAC vs DC Solar Panels
Trace conversion, MPPT, monitoring and battery coupling through string, optimiser and microinverter designs before choosing an architecture.
4 min readSystem DesignSolar Panel Orientation & Tilt
A field workflow for matching azimuth and tilt to shade, interval load, tariffs, export limits, storage and the usable roof.
4 min readBuyer's GuideHow to Read a Solar Panel Datasheet
Verify exact module identity, rating conditions, electrical and mechanical limits, approvals and warranty documents without borrowing generic figures.
5 min readCell TechnologyTOPCon Solar Cells, Explained
How TOPCon's tunnel-oxide passivating contact works, why it became mainstream, and which module-level figures installers must verify.
4 min readPanel TechnologyBifacial Solar Panels, Explained
How rear irradiance, bifaciality and array geometry affect output and current, and what installers must verify before relying on a gain estimate.
5 min readSystem DesignMicroinverters vs String Inverters
Compare exact microinverter and string-inverter designs across MPPT allocation, shade, monitoring, failure boundaries and service access.
4 min readDesign EvidenceModule and Inverter Compatibility
A complete compatibility check covering cold Voc, MPPT operation, current, parallel strings, connectors and exact model documentation.
7 min readBatteries & grid
LFP vs NMC: Home Battery Chemistry
A field-safe comparison of LFP and NMC that separates chemistry tendencies from the exact product, warranty, installation and support evidence that decides suitability.
5 min readGrid & ConnectionSolar Export Limiting, Explained
How to read an Australian connection approval, distinguish fixed, zero and flexible export arrangements, and capture evidence without guessing network settings.
5 min readEnergy MarketsVirtual Power Plants (VPP), Explained
How to separate VPP capability, enrolment and live dispatch, compare contract terms, and triage unexpected battery behaviour without changing settings blindly.
5 min readBattery DesignBattery Backup Architecture and Essential Loads
How energy, power, transfer equipment and backed-up circuits combine to determine real outage behaviour.
7 min readCommissioningExport-Control Commissioning
Commission export control from the connection approval through metering, CT direction, phase mapping and measured response.
7 min readDiagnostic EvidenceGrid-Voltage Investigations
Build a defensible evidence chain from inverter events, named measurement points, site voltage rise and network escalation.
6 min readField RecordsSolar and Battery Commissioning Evidence Packs
What to retain so another competent person can understand the approved design, installed system, tests, changes and customer handover.
6 min readTroubleshooting playbooks
Ordered field sequences for diagnosis, commissioning, maintenance, batteries and grid issues.
Decode any inverter warning
550 documented fault codes across 15 brands. Search them all in the finder.
Explainers, in brief
- What do the explainers cover?
- The technology behind the panels and the paperwork: cell architectures, inverter types, battery chemistry, orientation, VPPs and grid rules, written for installers, designers and curious owners.
- Are they tied to any manufacturer?
- No. The explainers are manufacturer-neutral and exist to help you understand a concept, not to sell a product. Anything ever sponsored would be labelled.
- Do they cost anything?
- No. Every explainer is free to read with no sign-up. Sources and page-specific review dates are shown where they have been verified.