In this issue of M&V Focus, Anna Kelly and Craig Sinnamon propose a paper that analyzes daily and hourly energy efficiency projects using IPMVP Option C methods. They demonstrate that models can identify savings as low as 3 % of facility consumption. Colin Grenville takes us through another exciting case studies where a client decided to install solar PV on its property after an ESCO commissioned other ECMs, and without consideration of the ongoing M&V activity. Saghi Salehi and Maryam Rezaie present a case study of natural gas consumption in a complex of administrative buildings with a single supplier meter to measure the energy consumption of 5 separate facilities and a restaurant. They discuss measurements of uncertainties and statistical errors. Matheus Lage discusses M & V in public lighting in Brazil, focusing on comparing the methodologies used by the Energy Efficiency Program of the National Electric Energy Agency and by Eletrobras. Phil Combs presents the outcome of a recent update of the ANSI C-137.5 standard that provides specifications regarding energy measurement from lighting systems and devices. This standard addresses M&V considerations such as uncertainty, error, precision, and calibration. Finally, Paul Calberg-Ellen and Nathan Lee present French translations of eight articles published in M&V Focus in 2018 and 2019.