Energy Storage and Renewable Energy: An Economic Approach

Öz

Bu makalede, fosil yakıtlar ve değişken yenilenebilir enerji kaynaklarıyla enerji üretiminin yapıldığı, ve üretilen enerjinin enerji depolama sistemleri aracılığıyla depolanabildiği bir ekonomi göz önünde bulundurulmaktadır. Bu kurgu dahilinde, enerji depolamanın optimal olduğu durumlar belirlenmekte, ve ekonomi-enerji değişkenlerinin uzun dönemdeki eğilimleri analiz edilmektedir. Ulaşılan sonuçlar iki yönlüdür. İlk olarak, ekonomide depolanan enerji miktarı talep ve arz eğrilerinin biçimleriyle büyük oranda ilişkilidir. Özellikle, marjinal fayda eğrisindeki konveksite, fosil enerji marjinal maliyet eğrisindeki konveksite, ve yenilenebilir enerji üretimindeki değişkenliğin büyüklüğü enerjinin depolanmasını teşvik etmektedirler. İkinci olarak, yenilenebilir enerji kapasitesinin düşük ve fosil yakıtlar kullanılarak üretilen enerjinin birimi maliyetinin sabit olduğu durumlarda, enerjinin depolanması refah artışı sağlamamaktadır. Enerji depolamanın enerji üretim kararlarına olan etkisini gösteren bu çalışmanın, enerji-ekonomi modellerini kullanarak yapılacak yeni çalışmalarda enerji arzının daha genel bir biçimde ele alınabilmesine olanak sağlayabileceği düşünülmektedir.

Anahtar Kelimeler

• Enerji depolaması,Fosil yakıt enerjisi,Yenilenebilir enerji,İhtiyati tasarruf,Kolokasyon yöntemi,Monte Carlo simülasyonları

Energy Storage and Renewable Energy: An Economic Approach

Öz

I consider an economy with fossil fuels, intermittent renewable energy, and energy storage, identify the conditions under which energy storage is optimal, and analyze the long-run tendencies of the economy energy variables. The findings are twofold. First, the amount of energy stored in the economy is highly dependent on the shape of the demand and supply schedules. In particular, energy storage is fostered by the convexity of the marginal utility, the marginal cost function for fossil fuel energy, and the degree of volatility in renewable energy. Second, considering a low level of renewable energy capacity, storing energy is not welfare improving when the unit cost of providing fossil fuel energy is constant. By showing the influence that energy storage can have on energy generation decisions, I believe that the current work can be influential in a more generous treatment of energy supply in future energy-economy models.

Anahtar Kelimeler

• Energy storage,Fossil fuel energy,Renewable energy,Precautionary savings,Collocation method,Monte Carlo simulations

Kaynakça

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