Peter A. Strachan | Lightnews

Professor Peter Strachan

@profstrachan.bsky.social

170 followers 63 following 2 posts

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Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

18/ Conclusions 4: Policy measures are needed to drive this transition, with solar PV, wind, batteries, and electrolysers as key technologies for the #Caribbean’s carbon neutrality by 2050 or earlier. Additional graphical results can be found in the Supplementary Material

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

17/ Conclusions 3: The #Caribbean can reduce reliance on fossil fuels by adopting low-cost solar energy, creating a Solar-to-X Economy ideal for tropical islands globally.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

16/ Conclusions 2: Batteries support PV-battery hybrids & grid interconnection enhances flexibility, reduces costs & supports wind with limited PV. Sector coupling & PtX improve efficiency. Electric road transport with V2G adds flexibility & grid-connected renew paths are 1-10% cheaper.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

15/ Conclusions 1: PV-battery hybrid solutions emerge as the most economical option for the #Caribbean, and the possibility of this hybrid configuration dominating the future energy system is also echoed in recent literature.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

14/ The #PtXeconomy will emerge an important framework across the #Caribbean energy sectors, via direct and indirect electrification approaches. twitter.com/ChristianOnR...

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

13/ #Cuba generates 25% of the #Caribbean’s 863 TWh electricity, followed by #Haiti and the Dominican Republic at 17% each. The regional average price is 30 €/MWh, with four nodes below this. By 2050, e-hydrogen and e-FTL fuels will comprise 46% and 30% of the fuel supply, respectively.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

12/ Early defossilisation, illustrated in the BPSs, leads to early phase-out of fossil fuels, prioritises RE technologies and achieves 5-10% lower cumulative energy system CO2 emissions.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

11/ Renewables-dominated paths have 7-24% lower cumulative costs as alternatives, with grid integration cutting costs by 1-10%. Accelerated transition paths cost 3-12% more as full defossilisation by 2050. Importing e-fuels lowers system costs by 7-16% & supports local resource use.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

10/ e-Fuels will be essential for defossilising the hard-to-abate demands. By 2050, sustainable fuels will contribute to replacing all fossil fuels.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

9/ Three electricity trade patterns are observed: With 1% onshore PV, CU and DO lead exports (90 TWh, 45 TWh), and HT is the top importer (80 TWh). Higher wind shares shift exports to CU (85 TWh), TCBB (70 TWh), PRV (35 TWh), and HT imports 110 TWh. The third pattern is with 6% onshore PV.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

8/ Grid utilisation correlates with dominant technology profiles, such as solar PV or wind power. Scenarios with 30% wind show higher grid utilisation, indicating a wind-grid correlation, while those with 12% wind power have lower utilisation, showing a PV-storage correlation.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

7/ The energy system includes electricity, heat, and gas storage. Batteries for prosumer and utility-scale use, along with V2G, are essential for daily solar PV storage.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

5/ Background: Electricity is the main energy carrier in the #Caribbean, with sector electrification growing 3-8x faster in generation and 4-20x more installed capacity by 2050 compared to 2020.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

4/ Background: This study makes a pivotal contribution as the first to analyse the #Caribbean with this level of granularity, employing a 9-node aggregation approach to represent grid interconnections.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

2/ Novelties of the research: This study offers novel insights into the energy transition of archipelagic nations, enriching the global discourse on grid interconnection, early decarbonisation, and the strategic importance of e-fuel imports for land-constrained regions.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 23

1/ New research @UniLUT doi.org/10.1049/rpg2... This study presents the first-of-its-kind comprehensive analysis of 17 illustrative pathways, exploring e-fuel imports, grid interconnections, and accelerated energy transitions for #Caribbean carbon neutrality by 2050.

Reposted by Peter A. Strachan

Dr Paul Dorfman @drpauldorfman.bsky.social · Dec 23

There's easily enough renewable energy to meet Labour's clean energy target open.substack.com/pub/davidtok...

There's easily enough renewable energy to meet Labour's clean energy target

But only if the Government issues enough generation contracts for wind and solar projects

open.substack.com

Reposted by Peter A. Strachan

Mark Z. Jacobson @mzjacobson.bsky.social · Dec 20

Biden Administration Approves 11th U.S. Offshore Wind Project

SouthCoast Wind will generate 2.4 GW of offshore wind for Massachusetts and Rhode Island

www.maritime-executive.com/article/bide...

Biden Administration Approves Eleventh U.S. Offshore Wind Project

Racing to put the offshore wind industry on a sound footing before the close of the Biden administration, the Department of the Interior today approv...

www.maritime-executive.com

Reposted by Peter A. Strachan

Mark Z. Jacobson @mzjacobson.bsky.social · Dec 19

Science pays off: Two Supreme Court wins in three days in climate cases I testified in

Dec. 16 US Supreme Court declines to hear challenges to California's right to control auto CO2
x.com/mzjacobson/s...

Dec. 18 Montana Supreme Court affirms kids' right to stable climate
x.com/mzjacobson/s...

x.com

Reposted by Peter A. Strachan

Mark Z. Jacobson @mzjacobson.bsky.social · Dec 18

Here's the Montana Supreme Court opinion

dailymontanan.com/wp-content/u...

Reposted by Peter A. Strachan

Mark Z. Jacobson @mzjacobson.bsky.social · Dec 18

Huge 6-1 Montana Supreme Court win!

"Plaintiffs definitively showed at trial..that climate change is causing serious+ irreversible harms to environment in Montana-assuring future Montanans a 'harmful' rather than 'healthful' envir. as guaranteed by Constitution"

www.theguardian.com/us-news/2024...

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

17/ Conclusions 5: Achieving carbon neutrality in the #Caribbean by 2050 requires key policy measures and the deployment of solar PV, wind, batteries & electrolysers. Additional graphical results can be found in the Supplementary Material

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

16/ Conclusions 4: The study shows no technical barriers to #Caribbean’s renewable transition, with storage, sector coupling & power-to-X ensuring flexibility. Batteries provide daily flex, gas storage for seasonal needs & EVs for low-cost transport with vehicle-to-grid flex.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

15/ Conclusions 3: This research asserts land constraints will not hinder a carbon-neutral #Caribbean energy system by 2050, with offshore floating solar PV as a key source. Future work should expand the offshore energy portfolio to include wave, wind & ocean energy solutions.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

14/ Conclusions 2: The research shows solar-driven renewable uptake lowers energy system costs, highlighting fossil fuel projections are unrealistic. #Caribbean's solar momentum is driven by excellent resources and improving economics, suggesting the term "Solar-to-X Economy".

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

13/ Conclusions 1: This study shows that high renewable uptake reduces energy system costs and is climate-compatible, addressing the macroeconomic imbalances and growth challenges caused by high energy costs in the #Caribbean.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

12/ The critical role of low-cost renewable electricity in achieving the deep defossilisation of the #Caribbean energy system through direct electrification of multiple end-use segments and indirect electricity use via PtX processes.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

11/ In 2050, e-FTL fuels dominate H2 flow (44%), followed by industrial heat (20%) & e-methane (13%). Remaining used for liquid H2 (11%) & turbines (9%). Total electrolyser capacity reaches 87 GWel, with the highest in HT (27%) and H2 supply totals 265 TWhH2,LHV, led by HT (29%).

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

10/ LCOE dominates costs across all nodes (61-83%) followed by LCOS (15-38%). Electric heating (65%) & sustainable bioenergy (34%) lead heat supply. #Caribbean’s fuel supply is mainly e-hydrogen (37%) & e-FTL fuels (27%). Regional electricity of 842 TWh, mainly PV & wind.

Reposted by Peter A. Strachan

Christian Breyer @christianonre.bsky.social · Dec 17

9/ Change in the energy system drives the emission reductions in the BPSs & DPS, indicating a correlation between higher renewable shares and lower emission levels. The CPSs support the hypothesis of a nexus between lack of ambition & carbon emissions.

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