What's the difference between micro-inverters and optimisers?
Both types increase solar electricity production, because each individual panel in the system has its own inverter or optimiser. So even if shading decreases the electricity output of one particular panel, none of the other panels’ production will be adversely affected
- Micro inverters - take all the functions of a string inverter and miniaturise it to solar panel level. Each solar panel has its own integrated microinverter attached either on or under each individual solar panel on the roof. This situation means no need for a central inverter.
- The power generated is transmitted at 240V AC from each micro-inverter and connected in parallel, then connected in directly to your switch board.
- Power optimizers - essentially split the traditional string inverter into two separate parts. The power generated is transmitted at high voltage DC (typically 200-500VDC) and the central inverter, does the DC to AC conversion.
- Therefore you get the benefits of panel level optimisation and the cost savings of using a single inverter.
What is the price difference between string and micro inverters?
[SUBJECT TO FREQUENT CHANGE - CHECK W/ SUPPLIERS EVERY 6 MONTHS] On average, with federal solar incentives factored in, a professionally installed 5kW solar system (a common residential size) with high-quality solar panels will cost: • $5500-$8000 ...
What is the price difference between a mid-range and premium solar system?
Component quality - Premium panels and inverters cost 20% more. The quality of solar panels and inverters can vary. You can find anything from cheap, poor-quality panels and inverters that are best to avoid, to high-end premium panels and inverters ...
How long do inverters last for?
Inverters generally come with a 5 or 10 year product warranty. 10 years is preferable.
Inverters - limiting export without shutting PV output off entirely, to avoid solar export charges.
"I'm reading about proposals to charge for export. I'd like to understand what inverter smarts are available to respond to signals from the meter/grid in order to limit export without shutting PV output off entirely." "Most inverters only have ...
What is the price difference between the various types of insulation material (e.g. rock wool, natural wool, polyester, polystyrene batts, etc)?
The main types of insulation are: Mineral fibres (rock wool and fibreglass), Cellulose, Polyester, Sheep’s Wool, Polystyrene foam boards, Reflective foils, Spray-on Foam and various combinations of the above types. Exact prices should be obtained ...