This study examines patterns of electricity use by households in Sydney who have installed solar photovoltaic (PV) technology compared to those who have not in order to assess the impact of government solar incentive schemes, and to identify whether conservation or rebound (increased consumption) effects are associated with rooftop PV. Findings have significance in determining whether a rebound effect needs to be factored into projected energy/carbon savings from solar PV installation. At issue is the robustness of carbon mitigation estimates included in future rounds of international climate change agreements as well as local forecasts of future electricity demand affecting the national grid. Analysis and modelling was undertaken on billing data for the period 2007–2014 on a representative sample of 4819 households. The sample comprised three groups: households who were early adopters and installed PV under a 60 c/kWh gross feed-in tariff scheme, a group who installed under a 20 c/KWh gross feed-in scheme and a control group with no PV. Econometric modelling undertaken on energy consumption behaviour of households with versus without local renewable energy generation revealed that on a kWh basis, the rebound effect is estimated to erode up to one fifth of the carbon benefit of renewable energy generated by solar PV.
Pilots are powerful for two reasons: 1. They are a great way to bring together groups of people to demonstrate how effective collective action can be in helping to change the status quo. More voices, more influence. Pilots, backed by evidence and research, can highlight and expose the challenges and blockages, particularly in government, far more effectively than any individual can (despite many individuals trying!). They also provide perfect opportunities for identifying solutions. And, 2. pilots provide the numbers and the evidence that decision-makers need, in order to believe and make change.Read more
Technology is partly a tool to make life easier or better but increasingly it's focused on developing powerful communications media that are also capable of changing behaviour. An example of this is the use of gamification and visual capability by the City of Brisbane's...Read more
Industry misconceptions around high cost and poor market interest in energy efficient homes continue to obstruct the mass adoption of low carbon housing. Josh’s House demonstrates that low carbon housing is accessible and cost effective. The Star Performers series showcases how...Read more
This study examines patterns of electricity use by Sydney households who have installed solar PV technology compared to those who have not in order to identify whether conservation or rebound effects are associated with domestic photovoltaics. A rebound effect exists when expected energy (and carbon) savings stimulate greater energy use.