Solar Analytics’ Nigel Morris Talks Sungrow, Distributed Control & Interoperability

Nigel Morris - Solar Analytics - Sungrow

When I asked Solar Analytics’ head of business development Nigel Morris for a chat about the company’s partnership with Sungrow, I didn’t expect to end up in a conversation about system interoperability and standardisation. [Read more…]

SMA Inverters Will Meet SA’s Remote Disconnection Rules At No Extra Cost

SMA inverters and remote solar disconnect and reconnect in South Australia

If SA needs to hit the big red button and shut down rooftop solar installed after 28 September 2020, SMA inverters can comply – at no extra cost to the owner.

On Thursday I was invited to a webinar on SMA’s response to South Australia’s new solar inverter requirements.  It seems that SMA — the maker of Sunny Boy inverters — was on the ball as all their residential inverters are on SA’s approved installation list. [Read more…]

New SA Inverter Rules Add $165 To Price Of SolarEdge Systems

Yesterday in SA solar met 100% of demand for a short time. Hence the need for remote solar shutdown. SolarEdge inverters have this capability. Image: Rob Morris

Yesterday in SA, solar met 100% of demand for a short period. Hence the need for remote curtailment of new solar. SolarEdge inverters can meet this requirement. Image: Rob Morris

On Thursday at 3:58 pm I was invited to a SolarEdge webinar that started at 4:00 pm.  I was glad to get the invite, but the lack of notice meant I missed out on the first 5 minutes because I didn’t have time to set up my laptop/internet properly beforehand.  This was very appropriate because the webinar was about how SolarEdge had responded to new South Australian solar inverter requirements that were rushed in before the industry had time to properly prepare.  [Read more…]

SA Australia’s Guinea Pig For Inverter Low Voltage Ride-through Procedure

Inverter Low Voltage Ride-through

Friends, it’s arrived: the Australian Energy Market Operator has published its standard low voltage ride-through test procedure for inverters. [Read more…]

The Grid Wants To Control Your Solar Inverter — But Only For Good, Not Evil

Solar inverter control

Thanks to a deficit of trust in government, people are rightly worried when they hear that ‘the government wants to be able to switch off their solar systems’.

On the 30th of April the AEMO or — as it’s known by the long-winded — Australian Energy Market Operator, published a significant report called Renewable Integration Study 1.  A few people read the summary and then wrote articles on how the grid wants to take control of people’s solar inverters; switching them on and off as they desire. [Read more…]

Choosing A High Efficiency Inverter Can Save Hundreds Of Dollars Over Its Lifespan

Choosing a high efficiency solar inverter

How much can you save over 10 years by choosing a higher efficiency solar inverter?

A solar inverter’s efficiency determines how much solar electricity will be lost on the short journey from your solar panels to your switchboard.

The efficiency of popular Australian residential solar inverters varies from 96.5% to 98%.  Higher efficiency lets a home squeeze more kilowatt-hours of generation out of its solar power system.  [Read more…]

MIL-Solar Produces Australian-Made Eclipse Solar Inverter

MIL-Solar Eclipse 5 kW inverter review

The MIL-Solar Eclipse 5 kW inverter. Made in Australia and tough as a Toowoombian.

Are you in the market for a grid-tied 5 kilowatt solar inverter?  In that case there’s plenty of choice.  I can think of nine brands I can recommend off the top of my head, but every single one of them is manufactured overseas. [Read more…]

SMA Says Their Inverter’s ShadeFix Software Reduces Effects Of Shade

SMA ShadeFix review

SMA’s ShadeFix doesn’t fix shade but reduces some of its secondary effects.

A couple of weeks go a reader asked me to write about ShadeFix.  ShadeFix is the software German manufacturer SMA include in their solar inverters.  This request made me feel a bit stupid because I had no idea what ShadeFix was. [Read more…]

Sungrow Crabby With Researcher Over Inverter Security Vulnerability Disclosure

A Brisbane researcher has alleged serious security vulnerabilities in a Sungrow inverter. Sungrow are not happy with him.

Update: patch available – see end of story

A few months after I wrote about security in the home renewables space, a Brisbane engineer bought a Sungrow SH5k-20 inverter, decided to “poke around”, and claims to have turned up a crop of serious security vulnerabilities. [Read more…]

When SMA Inverters Won’t Talk To Tigo TS4 Optimisers: Tales From The Front Line

SMA inverter and Tigo optimisers

How do you get an SMA inverter to talk to Tigo Optimisers? Sometimes with great difficulty it seems.

Update: see SMA response at end of story. It’s time to chase up another customer experience, courtesy of Sharon, who contacted us because her SMA-Tigo installation turned into a saga. [Read more…]