Energy Storage and Renewable Energy: An Economic Approach

Yıl 2018, Cilt: 4 Sayı: 1, 15 - 38, 31.05.2018

Tunç Durmaz

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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