Your old DB board can stop a solar CoC before it starts
A solar CoC covers the whole installation, not just the new panels. Learn how to separate remedial DB board work from the solar quote and who must certify it.
Proposal and Quote Evaluation
Frameworks for normalising quotes, checking production estimates, spotting warranty red flags and assessing structural or electrical prerequisites.
Which line items should a string inverter quote carry?
A string inverter quote should split out the inverter model and firmware, DC isolator, AC protection, mounting, labour, CoC and SSEG application — here is why.
The installation line on a solar quote hides the real work
The installation line on a solar quote is a scope, not a price. Here is how to compare quotes on the physical works before you compare the totals.
Your Solar Quotes Are Hiding a Line Item You Must Find
Learn how to normalise solar quotes in South Africa: split hardware, labour, DB work, compliance and commissioning into line items you can actually compare.
What installers check before siting a battery in a garage
Battery lifespan is set by where it physically sits. How a garage's daily temperature band, wall orientation and airflow decide the siting at quote stage.
The cheap inverter that stalls your CoC application
An uncertified inverter only surfaces at the CoC or SSEG stage, after the deposit has cleared. Here's the sequence, and the one request that catches it early.
The line missing from most hybrid quotes is not a price
A hybrid quote is a set of promises about behaviour. The lines that decide it: backup output, usable kWh, changeover scope and compliance documents.
What solar quotes miss about your roof and DB board
The site checks a solar quote should state before installation day: roof condition, DB board capacity, cable routes, upgrades and who pays for them.
What an Installer Checks Before Accepting Your Roof Pitch
Roof pitch is fixed, so the design has to bend around it. What a reviewer checks in a solar quote when the tilt and row spacing don't match the roof.
What a structural check settles before your panels go up
A structural check settles whether your roof can carry solar panels as permanent load. It is a separate opinion from the electrical CoC. Here is how to tell.