{"id":33899,"date":"2019-10-03T09:40:59","date_gmt":"2019-10-02T23:10:59","guid":{"rendered":"https:\/\/www.solarquotes.com.au\/blog\/?p=33899"},"modified":"2019-10-03T09:40:59","modified_gmt":"2019-10-02T23:10:59","slug":"dynamic-solar-exports-sa","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/dynamic-solar-exports-sa\/","title":{"rendered":"Dynamic Solar Export Limits: SA’s Smart Way To Integrate More Solar"},"content":{"rendered":"
\"dynamic

SA Power Networks plan to use dynamic export limits to allow more people to get rooftop solar power – whilst maximising allowable solar energy exports. Brilliant.<\/p><\/div>\n

When the Australian Energy Market Commission (AEMC) released its Economic Regulatory Framework Review, \u201cIntegrating Distributed Energy Resources For The Grid Of The Future<\/i>\u201d (PDF here<\/a>) last week, media reactions had a pessimistic, almost apocalyptic slant.<\/p>\n

Yes, solar power is putting stresses on a grid designed in the days when power went in one direction only – when rooftop solar generation is abundant, the grid voltage rises. Conversely, solar electricity generation can fall very rapidly, pulling grid voltage down.<\/p>\n

However, there are two snippets from the report that count as genuinely good news: the problem of excess solar power is occasional rather than constant; and one way to manage it, flexible export limits, is surprisingly straightforward to implement.<\/p>\n

As the AEMC report notes:<\/p>\n

\u201ctechnical issues caused by DER exporting to the grid generally do not occur frequently, and a DNSP may only need to constrain DER output on occasions so that its networks can operate within capacity\u201d.<\/p><\/blockquote>\n

SolarQuotes got in touch with SA Power Networks (SAPN), because after last year\u2019s AEMC report it started work on creating systems for dynamic export limits in partnership with Tesla, the South Australian government (as part of its Virtual Power Station project) and with support from the Federal Government.<\/p>\n

SAPN’s’ Future Network Strategy Manager Bryn Williams told SolarQuotes via e-mail that rising grid voltages are the most obvious and pressing issue, because customers with solar panels will see their systems switching off and all customers can suffer problems with their appliances.<\/p>\n

\u201cWe have had an increase in the number of customer enquiries for voltage-related issues in the last few years, particularly on mild, sunny days, as solar output begins to reach the technical limits in some areas of our network,\u201d Williams told us.<\/p><\/blockquote>\n

As we recently mentioned<\/a>, it is a \u201ccrunch time\u201d: excess solar generation already means Distributed Network Service Providers<\/a> (DNSPs) restrict how much power homeowners can push back out to the grid.<\/p>\n

That\u2019s why the AEMC wants the grid to become more like a trading platform than a one-way transport, so it can be more responsive to the variability introduced by rooftop solar PV supply.<\/p>\n

As RenewEconomy <\/i>was told last week<\/a>, behind the AEMC\u2019s language is a welcome recognition of the impact of rooftop solar on the energy market.<\/p>\n

Making the system more dynamic reduces the need for a massive upgrade of the entire network of poles and wires.<\/p>\n

Export limits today are static. SAPN, for example, caps exports to the grid at 5 kW (and that\u2019s likely to be cut to 3 kW, the AEMC report noted).<\/p>\n

Williams wrote that saturation has already been reached in some parts of Victoria. Some new customers are export limited to 0 kW. They can only use their solar energy in-home, they can\u2019t export electricity back to the grid.<\/p>\n

That effectively punishes new buyers of solar power systems<\/a>, so SAPN’s flexible exports aim to solve the problem by tackling the occasions when there\u2019s far too much electricity, while expanding the maximum export to 10 kW.<\/p>\n

SAPN\u2019s Dynamic Solar Exports Implementation<\/h2>\n

Implementing dynamic export limits needs investment in the network, a way to let householders\u2019 PV systems know how much they can export, and inverters that can respond to the network.<\/p>\n

On the network side, SAPN is investing in network monitoring systems, to get a more granular and real-time view of grid voltage; and operational systems to manage customer output. SAPN\u2019s 2020-2025 expenditure plan, currently with the Australian Energy Regulator for review, includes investment that Williams told us:<\/p>\n

\u201cwill enable us to signal the available export capacity of the network on a locational and time-varying basis, so customer equipment can reduce export levels at times when the network is under stress, but still export energy at all other times\u201d.<\/p><\/blockquote>\n

On the customer side, implementation is very straightforward. SAPN will post export limits each day on an open Web interface. Solar inverters will download that limit each day, and implement the limit.<\/p>\n

Williams added that limits will be location-specific:<\/p>\n

\u201cThat way we can safely raise export limits at times and in places where this won\u2019t cause a problem, and set them lower if required at specific times and places when network capacity is limited.<\/p>\n

 <\/p>\n

\u201cThis happens automatically; the customer does not have to do anything once the system is installed,\u201d he added.<\/p><\/blockquote>\n

Williams told us SAPN\u2019s economic models show that improving network capacity management provides a better economic result for all customers, whether or not they have solar panels installed.<\/p>\n

\u201cThis is because it enables solar to continue to connect, export energy and contribute to the energy system as a whole while avoiding the need for expensive network upgrades. Solar customers are able to export their surplus energy for most of the year, which means that they benefit from feed-in-tariffs, and non-solar customers benefit from the extra solar energy being supplied to the market, which pushes wholesale prices down.\u201d<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

When the Australian Energy Market Commission (AEMC) released its Economic Regulatory Framework Review, \u201cIntegrating Distributed Energy Resources For The Grid Of The Future\u201d (PDF here) last week, media reactions had a pessimistic, almost apocalyptic slant.<\/p>\n","protected":false},"author":23,"featured_media":33923,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[509],"tags":[],"class_list":["post-33899","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solar-innovations","entry"],"acf":[],"yoast_head":"\nDynamic Solar Export Limits: SA's Genius Way To Integrate More Solar<\/title>\n<meta name=\"description\" content=\"SA Power Networks plan to use dynamic export limits; enabling more people to get rooftop solar power without crippling solar exports. 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This was one of five mandatory requirements Solar Victoria outlined in their\u2026","rel":"","context":"In "Solar Inverters"","block_context":{"text":"Solar Inverters","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-inverters\/"},"img":{"alt_text":"Dynamic solar exports Victoria","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2024\/02\/dynamic-solar-exports-victoria.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2024\/02\/dynamic-solar-exports-victoria.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2024\/02\/dynamic-solar-exports-victoria.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2024\/02\/dynamic-solar-exports-victoria.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2024\/02\/dynamic-solar-exports-victoria.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":95617,"url":"https:\/\/www.solarquotes.com.au\/blog\/wa-flexible-smarter-solar-mb3301\/","url_meta":{"origin":33899,"position":1},"title":"Flexible Exports Soon For WA Under “Smarter Solar”","author":"Michael Bloch","date":"October 29, 2025","format":false,"excerpt":"Energy Policy WA is consulting on proposed rule changes to kick in early next year that aim to support larger and more small-scale rooftop solar and battery installations in Western Power's service area through the implementation of flexible solar exports. What Are The Proposed Smarter Solar Changes For WA? At\u2026","rel":"","context":"In "Solar Policy"","block_context":{"text":"Solar Policy","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-policy\/"},"img":{"alt_text":"Rooftop solar power systems in Western Australia","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/10\/wa-flexible-exports.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/10\/wa-flexible-exports.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/10\/wa-flexible-exports.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/10\/wa-flexible-exports.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/10\/wa-flexible-exports.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":52870,"url":"https:\/\/www.solarquotes.com.au\/blog\/inverters-dynamic-exports-mb2112\/","url_meta":{"origin":33899,"position":2},"title":"SA Dynamic Solar Exports Start Date Floated","author":"Michael Bloch","date":"August 11, 2021","format":false,"excerpt":"A start date in South Australia for mandatory inverter dynamic solar export support has been recommended. As for other states, this may be heading their way at some point too. First, a little background. What Are Dynamic\/Flexible Solar Exports? In a nutshell, dynamic exports involve solar inverters being instructed by\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"Solar inverters and dynamic exports","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/08\/inverters-dynamic-exports.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/08\/inverters-dynamic-exports.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/08\/inverters-dynamic-exports.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/08\/inverters-dynamic-exports.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/08\/inverters-dynamic-exports.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":73470,"url":"https:\/\/www.solarquotes.com.au\/blog\/zero-export-limit-aer-mb2896\/","url_meta":{"origin":33899,"position":3},"title":"Zero Solar Export Limit Crackdown On The Horizon","author":"Michael Bloch","date":"April 12, 2023","format":false,"excerpt":"The Australian Energy Regulator has released its final say on the imposition of static zero export limits on grid-connected solar power systems. The uptake of home solar power in Australia has been such that levels of surplus solar energy goodness flowing into the grid in some locations can at times\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"Rules on zero export limits for solar power systems","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/04\/zero-export-limit-solar.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/04\/zero-export-limit-solar.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/04\/zero-export-limit-solar.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/04\/zero-export-limit-solar.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/04\/zero-export-limit-solar.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":33810,"url":"https:\/\/www.solarquotes.com.au\/blog\/rooftop-solar-aemc-mb1229\/","url_meta":{"origin":33899,"position":4},"title":"Crunch Time For Australian Rooftop Solar: AEMC","author":"Michael Bloch","date":"September 26, 2019","format":false,"excerpt":"Rooftop solar penetration has reached a stage in Australia where big decisions need to be made by electricity distribution network businesses says the Australian Energy Market Commission (AEMC). In a new report released this morning, the AEMC is calling on electricity distributors to deliver the \"grid of the future\" in\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"AEMC - Rooftop solar power","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/09\/aemc-rooftop-solar.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/09\/aemc-rooftop-solar.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/09\/aemc-rooftop-solar.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/09\/aemc-rooftop-solar.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/09\/aemc-rooftop-solar.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":77773,"url":"https:\/\/www.solarquotes.com.au\/blog\/aer-flexible-export-rules\/","url_meta":{"origin":33899,"position":5},"title":"AER Finally Gets to Work on Flexible Export Rules","author":"Finn Peacock","date":"August 3, 2023","format":false,"excerpt":"Regulations to govern Flexible Exports of household solar PV to the grid took a step forward this week when the AER published its \u201cfinal response\u201d to a consultation conducted late last year. According to the AER\u2019s media release, the response is part of the regulator\u2019s preparation of: \u201cregulatory arrangements needed\u2026","rel":"","context":"In "Solar Inverters"","block_context":{"text":"Solar Inverters","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-inverters\/"},"img":{"alt_text":"AER flexible export limits paper","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/08\/flexible-exports-aer.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/08\/flexible-exports-aer.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/08\/flexible-exports-aer.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/08\/flexible-exports-aer.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/08\/flexible-exports-aer.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/33899","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/comments?post=33899"}],"version-history":[{"count":11,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/33899\/revisions"}],"predecessor-version":[{"id":33934,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/33899\/revisions\/33934"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/media\/33923"}],"wp:attachment":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/media?parent=33899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/categories?post=33899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/tags?post=33899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}