Reducing carbon footprint by replacing generators with solar PV systems: a contingent valuation study in Lagos, Nigeria

IF 2.2 4区经济学 Q2 ECONOMICS

Environment and Development Economics Pub Date : 2022-10-06 DOI:10.1017/s1355770x22000316

Eleanya Nduka

引用次数: 2

Abstract

Nigeria is endowed with abundant sunshine year-round; thus, solar PV would solve the environmental problems associated with petrol-powered generators. However, it is unclear whether households are willing to transition. Thus, we analyze households’ willingness to pay (WTP) for solar PV under four scenarios: (i) WTP when a solar PV is complemented with a generator, (ii) WTP when a solar PV completely displaces a generator, (iii) WTP when a solar PV is complemented with a generator, plus a subsidy, and (iv) WTP when a solar PV completely displaces a generator, given a subsidy. We find that WTP for solar PV is higher when it can displace generators completely. Subsidy plus monthly rather than upfront payment would scale up the adoption of solar PV by about 6 per cent. Furthermore, the cost benefit analysis results show that solar PV investment is profitable. Thus, there is a need to implement policies aimed at scaling up the energy transition.

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通过用太阳能光伏系统取代发电机来减少碳足迹：尼日利亚拉各斯的一项偶然评估研究

尼日利亚全年阳光充足；因此，太阳能光伏发电将解决与汽油发电机相关的环境问题。然而，目前尚不清楚家庭是否愿意转型。因此，我们分析了四种情况下家庭对太阳能光伏的支付意愿（WTP）：（i）当太阳能光伏与发电机互补时的WTP，（ii）太阳能光伏完全取代发电机时的WTP，（iii）当太阳能PV与发电机互补并加上补贴时的WT普，以及（iv）在补贴的情况下，太阳能光伏完全替代发电机的WTP。我们发现，当太阳能光伏发电能够完全取代发电机时，其WTP更高。补贴加上每月而不是预付款，将使太阳能光伏的采用率提高约6%。此外，成本效益分析结果表明，太阳能光伏投资是有利可图的。因此，有必要执行旨在扩大能源转型的政策。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environment and Development Economics Multiple-

CiteScore

5.00

自引率

4.80%

发文量

期刊介绍： Environment and Development Economics is positioned at the intersection of environmental, resource and development economics. The Editor and Associate Editors, supported by a distinguished panel of advisors from around the world, aim to encourage submissions from researchers in the field in both developed and developing countries. The Journal is divided into two main sections, Theory and Applications, which includes regular academic papers and Policy Options, which includes papers that may be of interest to the wider policy community. Environment and Development Economics also publishes occasional Policy Fora (discussions based on a focal paper). From time to time the journal publishes special issues based on a particular theme.