History of Ground Source Systems "Brad Donovan started Donovan Electrical Service over 25 years ago and spent a large amount of that time working with BP Solar in both off grid and on grid installation, Brad worked with BP to develop the grid connect system that is on so many house roofs today for BP …

One of the most energy efficient systems currently available Can heat and cool sheds Almost zero Carbon emissions Highly scalable Can slash energy costs by 50 to 70% In the the winter 2013 edition of the Drumstick (a free quarterly newsletter produced by NSW Department of Primary Industries providing information and updates for the poultry …