Client had an old DG and later they got Solar plant installed. Though both Solar & DG were synced, however, during the case of power failure, the diesel consumption remained high. After the solar & DG data was analysed on the ECOTIO platform, it was understood that owing to the higher rating of the DG, the solar plant was not utilized to it’s utmost potential. Intermittent load, solar & DG data were analysed to compute the correct rating of the DG set. After the DG was replaced, 40% reduction was observed in the diesel costs.