We elicit homeowners’ willingness to pay (WTP) for energy efficiency and low-carbon technologies in the context of heating appliance replacement. We employ a within-between subject design that involves manipulating information in a two-stage discrete choice experiment (DCE) and use WTP space estimation to identify the role of financial information in reducing fossil fuel use. We find that homeowners’ average valuation of energy efficiency exceeds associated heating cost savings, suggesting that they also consider non-monetary benefits when evaluating this type of investment, whereas information about private and pro-social benefits of investments only has a limited impact on WTP. Evidence also suggests that homeowners have a strong preference for the existing technology. Consequently, fossil fuel users’ WTP for switching to low-carbon technologies does not cover respective investment cost differentials, and we derive evidence on how combined subsidies and information can induce these users to opt out of fossil technologies.

我们激发了房主在更换加热设备的情况下愿意为节能和低碳技术支付费用（WTP）。我们采用介于两个主题之间的主题设计，其中涉及在两阶段离散选择实验（DCE）中处理信息，并使用WTP空间估计来确定财务信息在减少化石燃料使用中的作用。我们发现，房主对能源效率的平均评估超过了相关的供热成本节省，这表明他们在评估此类投资时也考虑了非货币收益，而有关投资的私人收益和亲社会收益的信息仅对WTP产生有限的影响。证据还表明，房主对现有技术有强烈的偏好。所以，