Renewable energy solutions for a sustainable tomorrow
Whether you are commissioning a new array or chasing an intermittent fault that the OEM cannot explain, a fresh look at the string data and protection settings usually finds the answer. We work alongside your team, not over them, and we document everything so the next engineer does not have to start from zero.
Tell us about the fault codes or performance ratio you are seeing. We will come back with a plan.
Facility managers and EPC teams share how our O&M documentation and grid compliance checks held up during real commissioning and fault-finding work.
"The inverter fault code guide saved us a full site visit. We cleared an F28 on an SG110CX after following the DC bus checks, and the string voltage table matched what we measured on site."
"We used the string sizing checklist during commissioning of a bifacial array near Bloemfontein. The albedo adjustment caught a clipping risk we would have missed until summer."
"The soiling loss measurement method gave us a defensible cleaning schedule for a Karoo site. We stopped guessing and started logging performance ratio data properly."
Our documentation is used by facility managers and EPC contractors who need practical guidance on inverter diagnostics, grid code compliance and battery dispatch logic.
The notes below are meant to remove ambiguity around how we describe plant performance, grid compliance work, and maintenance scope. Read them alongside any report or proposal so the numbers and terms land the same way for everyone involved.
When we quote a performance ratio, it is calculated from AC energy at the meter and plane-of-array irradiance, normalised to 25°C cell temperature. It does not include curtailment requested by the municipality or the utility, nor does it account for downtime caused by grid outages outside your boundary. If we reference a PR figure in a report, the monitoring interval and the exclusion list are stated on the same page.
A grid compliance assessment covers protection settings, earthing arrangement, and the paperwork required by the local municipality for embedded generation. It does not extend to upstream network upgrades or transformer sizing on the utility side. Where a certificate of compliance is issued, it applies to the configuration tested on the date of the site visit, not to later modifications.
Our maintenance scope covers inverter fault diagnosis, string-level checks, thermal scanning of combiner boxes, and DC switchgear inspection. It does not include module cleaning, vegetation control, or structural repairs to mounting frames unless agreed in a separate work order. Any safety hazard found during a visit is reported immediately, and work stops until the client confirms how to proceed.
References to battery dispatch logic assume the manufacturer's default state of charge limits unless a custom profile is documented. We do not recommend operating lithium cells below the manufacturer's minimum SOC for routine cycling, and any advice we give on dispatch timing is based on tariff structure and load data you provide. We do not guarantee savings outcomes, since those depend on consumption patterns and rate changes outside our control.
If a term in a report or blog post is not defined here, assume it follows the South African National Standard relevant to the equipment or installation. Where our field notes conflict with a manufacturer's warranty conditions, the manufacturer's document takes precedence. For anything that remains unclear, raise it before work starts rather than after the fact, so the scope and expectations are aligned from the beginning.