Abstract Two major subsidy schemes for small-scale solar panels in Australia, namely feed-in tariffs (FiTs) and the Small-scale Renewable Energy Scheme (SRES), have substantial inequity implications. Higher household wealth is associated with larger subsidy receipts for both schemes. Using household-level data up to 2018, we find that the top wealth decile had higher subsidy receipts than any of the bottom seven wealth deciles in respect of both subsidy schemes. There is also evidence of inequality between lower-wealth deciles for feed-in tariffs but not the SRES. For effectiveness of the SRES, we show a positive relationship between the SRES subsidy factor and solar panel uptake, but no significant association with size decisions of solar adopters. In contrast, wealth is positively related with both uptake and size decisions of solar adopters. Equity of the SRES could be improved by targeting subsidies to low-wealth households, while efficiency could be enhanced by equalising subsidies across system sizes.

中文翻译：

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澳大利亚小规模太阳能计划的公平性和有效性

摘要 澳大利亚小规模太阳能电池板的两项主要补贴计划，即上网电价 (FiTs) 和小规模可再生能源计划 (SRES)，具有重大的不平等影响。较高的家庭财富与两个计划的较大补贴收入相关。使用截至 2018 年的家庭层面数据，我们发现，就这两种补贴计划而言，财富最高的十分位数的补贴收入高于财富最低的七个十分位数中的任何一个。也有证据表明低收入阶层之间在上网电价方面存在不平等，但在 SRES 方面则不然。对于 SRES 的有效性，我们显示 SRES 补贴因子与太阳能电池板的采用之间存在正相关关系，但与太阳能采用者的规模决定没有显着关联。相比之下，财富与太阳能采用者的吸收和规模决策呈正相关。