FEEM working papers "Note di lavoro" series
2013 .090

The Optimal Share of Variable Renewables. How the Variability of Wind and Solar Power Affects their Welfare-optimal Deployment


Autori: Lion Hirth
Serie: Energy: Resources and Markets
Editor: Giuseppe Sammarco
Parole chiave: Wind Power, Solar Power, Variable Renewables, Cost-Benefit Analysis, Numerical Optimization, Competitiveness
Numero JEL: C61, C63, Q42, Q48, D41

Abstract

This paper estimates the welfare-optimal market share of wind and solar power, explicitly taking into account their output variability. We present a theoretical valuation framework that consistently accounts for output variability over time, forecast errors, and the location of generators in the power grid, and evaluate the impact of these three factors on the marginal value of electricity from renewables. Then we estimate the optimal share of wind and solar power in Northwestern Europe from a calibrated numerical power market model. The optimal long-term share of wind power of total electricity consumption is estimated to be 20% at cost levels of 50 €/MWh, about three times the current market share of wind; but this estimate is subject to significant parameter uncertainty. Variability significantly impacts results: if winds were constant, the optimal share would be 60%. In addition, the effect of technological change, price shocks, and policies on the optimal share is assessed. We present and explain several surprising findings, including a negative impact of CO2 prices on optimal wind deployment.

Suggested citation: Hirth, L., (2013), 'The Optimal Share of Variable Renewables. How the Variability of Wind and Solar Power Affects their Welfare-optimal Deployment', Nota di Lavoro 90.2013, Milan, Italy: Fondazione Eni Enrico Mattei.

Download file
Scarica il file PDF

FEEM Newsletter

Iscriviti per rimanere aggiornato.

I Suoi dati saranno trattati dalla Fondazione Eni Enrico Mattei. – Titolare del trattamento – per ricevere via posta elettronica la newsletter della Fondazione. Il conferimento dell’indirizzo e-mail è necessario alla fornitura del servizio. La invitiamo a consultare la Privacy Policy per ottenere maggiori informazioni a tutela dei Suoi diritti.

Questo Sito utilizza cookie tecnici e analytics, nonché consente l’invio di cookie di profilazione di terze parti.
Chiudendo questo banner o comunque proseguendo la navigazione sul Sito manifesti il tuo consenso all’uso dei cookie. Per ulteriori informazioni e per esprimere scelte selettive in ordine all’uso dei cookie vedi la   Cookie PolicyOk