Our recent solar PV system feasibility study for a 2-story shopping centre + warehouse building in Kuala Lumpur Malaysia, showed a surprising result: The payback period was 8 years, about twice a high as just last year! Wait, shouldn't it be getting cheaper switching to renewables?! Especially given Malaysia's commitment to net zero greenhouse gas emissions by 2050. So, what has changed? The answer lies in several major revisions in the regulatory and charging structure for large PV systems.