Port of San Diego  

The Port of San Diego’s (Port’s) Green Business Network is an integrated energy efficiency and sustainability program that educates member businesses on sustainable business practices and connects them with resources to implement building and operational improvements. Focusing on businesses in a small geographical area helps create a community spirit that businesses are reluctant to opt out of. Between 2011 and 2017, participating businesses reduced energy use by 32% and water use by 56%.

Opting Out in Germany for Non-Renewable Energy  

While many people in Germany say they would use green energy if presented with a choice, very few consumers do so. In contrast, most people have been using green energy in a few German municipalities where citizens have had to opt out for non-renewable energy supplies rather than having to opt-in to get renewable ones. This case study presents their experiences and illustrates the value of randomized control trials (RCTs) for measuring program impacts.

Norway’s Promotion of Electric Vehicles  

Several policies / incentives, in place over an extended period, have made Norwegians more likely to purchase electric vehicles (EVs) than people in any other country. These incentives have included: exemption from vehicle registration and high purchase taxes, reduced road tolls, free parking, and access to some bus lanes. A similar long-term approach could be adapted for other big-ticket purchasing behaviors where the impact justifies the expense – for example energy-efficient home / building retrofits and appliances.

BART Perks 2  

BART Perks Phase II used a Smartphone-based platform to incentivize shifts in public transit trips that reduced peak demand. The approach proved cost-effective relative to the average fare associated with each freed-up seat. At full-scale, the approach was predicted to be cost-effective relative to purchasing and maintaining more transit cars. This six-month randomized control study took place in San Francisco during the first half of 2019.

RE100  

RE100 is a global, collaborative initiative that is accelerating a shift in corporate energy purchasing to reduce global carbon emissions and buy energy from renewable sources. Members commit to public disclosure of progress, with third-party verification providing social proof and accountability. Participation also involves inter-company comparisons and norming to a common goal of 100% renewable electricity. High-profile external public relations events enhance value for membership and sustain pressure for member companies to keep commitments, thereby ensuring persistence of campaign impacts. Designated a Landmark Case Study in 2019.