Sustainable Aviation Intelligence

14 Aug 2026

SAVi Five: Heart flies world’s largest electric aircraft, Brazil finalises 2027 SAF mandate, and more…

Heart Aerospace on 12th August completed the first flight of its X1 demonstrator aircraft, the largest battery-electric ...

17 Jul 2026

SAVi Five: EU proposes 5,000-km radius expansion for ETS, UK RCM first awards in late 2028, and more…

Five noteworthy aviation sustainability developments in the past seven days curated by the Ishka Airfinance SAVi team.

26 Jun 2026

SAVi Five: AURA AERO buys VoltAero, ZeroAvia delays ZA600, SAF levy consultation, and more…

Toulouse-based hybrid-electric aircraft developer AURA AERO has acquired a significant portion of the assets, patents, a...

19 Jun 2026

SAVi Five: UK consults on SAF Mandate ‘flexibilities’, new calls for ETS scope extension, and more …

The UK’s Department for Transport (DfT) on 16th June opened a call for evidence on whether the country’s SAF Mandate rem...

17 Jun 2026

Spotting the difference: EU STIP e-SAF double-sided auction vs the UK’s SAF RCM

Closing the gap between dependable demand for advanced SAF and investor confidence in pioneering projects has been a per...

5 Jun 2026

SAVi Five: ZeroAvia CEO steps down, big week for US new propulsion, UK carbon budget, and more…

ZeroAvia founder and CEO Val Miftakhov stepped down last week as part of a leadership transition, the company announced....

15 May 2026

SAVi Five: EU hints at ETS ‘full emission’ scope in revision, infrastructure state aid update, and more…

Five noteworthy aviation sustainability developments in the past seven days curated by the Ishka SAVi team.

23 Mar 2026

SSWS 2026: UK SAF policy wins hearts, but advanced SAF supply worries persist

The release last week of the UK Jet Zero Taskforce’s 2025 annual report, alongside its new SAF and greenhouse-gas remova...

23 Mar 2026

Climate risk management in 21st century Aircraft and Airport Insurance

This report examines the obligations placed on firms under SS5/25 and the categories of climate-related risk that aviati...

20 Mar 2026

SAVi Five: A4E’s strongest pushback yet against EU rules, UK Jet Zero reports, and more…

The CEOs of Europe’s largest airlines this week called for key European aviation environmental policies to be delayed or...

6 Mar 2026

SAVi Five: China’s new Five-Year Plan, Middle East early implications, and more…

Policymakers are gathering in Beijing from 5th March for the 14th National People’s congress, the country’s annual polit...

13 Feb 2026

SAVi Five: EU ETS under attack, UK exceeds 2025 SAF mandate, and more…

Europe’s largest airline association, Airlines for Europe (A4E), this week urged European leaders to “bring down ETS cos...

23 Jan 2026

SAVi Five: US SAF use grows 2.5x in 2025, Total CEO accuses airlines of undermining mandate, and more…

SAF consumption in the US rose to approximately 870,000 tonnes in 2025, more than doubling the total from 2024, accordin...

16 Jan 2026

SAVi Five: EU ETS allowances reach €90, lessor SAF certificate guidance, and more…

EU ETS carbon prices rose above €90/t this week, the highest since mid-2023, with ICE EUA December 2026 futures trading ...

13 Jan 2026

Global Taxonomies: Aviation included or likely to be added in nearly half of cases

This report updates Ishka SAVi’s November 2024 analysis and August 2022 analysis to track how taxonomies are evolving an...

2 Jan 2026

SAVi Five: New propulsion ‘first flight’ updates, Japan’s GX-ETS price ceiling, and more…

As 2025 drew to a close, it left behind a year of milestones for several new propulsion aircraft developers, but also so...

20 Nov 2025

EU ETS & SAF costs: European airlines soft land in the new normal

Ishka analyses the latest Q3 disclosures by Europe's largest operators to understand the cost impacts of SAF mandates an...

23 Oct 2025

UK flagship SAF event moves past policy talk to address project progress

The third edition of the UK government’s annual SAF event, the SAF Supply Chain Initiative, was held in Sheffield on 16t...

29 Aug 2025

SAVi Five: China lays down plans for EU ETS-style carbon market, non-CO2’s legal responsibility, and more…

The Chinese government this week published a statement by its highest organs of authority spelling out plans to tighten ...

21 Aug 2025

SAF Policy Map – Updates from the UK, Turkey, Japan, and more…

This is the 4th edition of the SAVi SAF policy map, of policy efforts around the world to increase SAF uptake. This edit...