R&D Expenditures in Fossil Fuels vs. Renewable Energy: Insights on Energy Transition through Cross-Country Analysis

Öz

This study examines the impact of public R&D expenditures in the fossil fuel and renewable energy sectors on energy transition through the carbon intensity variable. The analysis uses Pedroni's Panel Cointegration Test and the Group Mean Panel Dynamic Ordinary Least Squares, utilizing data from 16 IEA countries between 1993 and 2022. Unlike previous studies that primarily focus on either general R&D expenditures or aggregate energy sector R&D, this study provides a comparative analysis of fossil and renewable sectors, addressing a significant gap in the literature. The findings reveal that public R&D expenditures in the renewable energy sector may significantly reduce carbon intensity, whereas public R&D expenditures in the fossil fuel sector increase carbon intensity. These results suggest that, contrary to the common assumption in the literature, the heterogeneous effects of R&D spending across subsectors of energy industry should be taken into account. Therefore, Redirecting R&D expenditures toward renewable energy technologies, rather than fossil energy sector, may accelerate the energy transition process.

Anahtar Kelimeler

• Energy Transition
• carbon intensity
• R&D

Fosil Yakıtlar ve Yenilenebilir Enerjide Ar-Ge Harcamaları: Enerji Geçişine Dair Panel Veri Analizinden Bulgular

Öz

Bu çalışma, fosil yakıt ve yenilenebilir enerji sektörlerinde kamu Ar-Ge harcamalarının, karbon yoğunluğu değişkeni aracılığıyla, enerji geçişi üzerindeki etkisi incelenmektedir. Analiz, 1993 ile 2022 yılları arasında 16 IEA ülkesinden alınan verilerle Pedroni'nin Panel Eşbütünleşme Testi ve Grup Ortalama Panel Dinamik En Küçük Kareler Yöntemi'ni kullanmaktadır. Önceki çalışmalardan farklı olarak, bu çalışma, genel Ar-Ge harcamaları ya da toplam enerji sektörü Ar-Ge'si üzerine odaklanmak yerine, fosil ve yenilenebilir enerji sektörlerini karşılaştırmalı bir şekilde analiz ederek literatürdeki önemli bir boşluğu doldurmaktadır. Bulgular, yenilenebilir enerji sektöründeki kamu Ar-Ge harcamalarının karbon yoğunluğunu önemli ölçüde azaltabileceğini, oysa fosil yakıtlar sektöründeki kamu Ar-Ge harcamalarının karbon yoğunluğunu artırabileceğini göstermektedir. Bu sonuçlar, literatürdeki yaygın varsayımın aksine, enerji endüstrisinin alt sektörlerinde Ar-Ge harcamalarının heterojen etkilerinin dikkate alınması gerekliliğini ortaya koymaktadır. Bu bağlamda, Ar-Ge harcamalarının fosil enerji sektöründen ziyade, yenilenebilir enerji teknolojilerine yoğunlaştırılması, enerji geçiş sürecini hızlandırabilir.

Anahtar Kelimeler

• Enerji Geçişi
• karbon yoğunluğu
• Ar-Ge

Kaynakça

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