Filter by type:

Sort by year:

The Hidden Structure of Energy Efficiency Finance

Working paper
Nadia Ameli, Sumit Kothari, Giacomo Livan, Guido Caldarelli
Ameli, Nadia and Kothari, Sumit and Livan, Giacomo and Caldarelli, Guido, The Hidden Structure of Energy Efficiency Finance (2021).


The broader financial system plays a key role in channeling capitals towards energy efficiency technologies to meet the climate goals. In this study, we analyse the market for energy efficiency finance as a complex system, where interactions of heterogeneous investors give rise to large scale investment trends. By analysing the investment system as an evolving network of inter-linked investors, this study identifies the key actors that have directed investment flows in energy efficiency technologies, patterns of investors’ interactions in terms of co-investments and the evolution of the investment landscape. These elements are critical to deploy instruments of public finance and policy effectively to accelerate the energy efficiency technologies deployment.



  • energy efficiency investments
  • financial networks
  • low-carbon finance

The Linkage Between Income Distribution and Clean Energy Investments: Addressing Financing Cost

Working paper
Ameli N., D.M. Kammen
FEEM Working Papers vol 10 (2012)


With a focus on alternative methods for accelerating clean energy policy adoption, this study introduces an innovative financing scheme for renewable and energy efficiency deployment. Financing barriers represent a notable obstacle for energy improvements and this is particularly the case for low-income households. Limited access to credit, due to socio-economic status and the lack of guarantees, are key issues related to financing barriers. Implementing a policy such as PACE – Property Assessed Clean Energy – allows for the provision of up-front funds for residential property owners to install electric and thermal solar systems and make energy-efficiency improvements to their buildings. This paper will inform the design of better policies tailored to the creation of the appropriate conditions for such investments to occur, especially when the lack of access to capital tends to stall them.



  • financing barriers
  • energy efficiency
  • solar PV
  • energy investments

Does Income Distribution Affect Energy Investments?

Working paper
Ameli N., D. M. Kammen
Review of Environment Energy and Economics, Re3 Energy

Going Electric: Expert Survey on the Future of Battery Technologies for Electric Vehicles

Working paper
M. Catenacci, E. Verdolini, V. Bosetti, G. Fiorese, N. Ameli
FEEM Working Papers vol 93 (2012)


The paper describes the results of a survey, carried out with leading EU experts, on the capacity of both fully electric and plug-in hybrid vehicles to reach commercial success in the next twenty years. The success of electric transport is hampered by a combination of low range, scarce efficiency and high costs of batteries. Costs are expected to decrease in response to increasing sales volume and technical improvements, and advances would result from adequate investments in research, development and demonstration (RD&D). Experts’ judgements are collected to shed light on the inherently uncertain relationship between RD&D efforts and consequent technical progress, and to assess the complex dynamics that will hinder or support the widespread diffusion of electric vehicles. The analysis of the experts’ data results in a number of important policy recommendations to guide future RD&D choices and target commitments both for the EU and its member states.



  • expert elicitation
  • battery technologies
  • electric vehicles