Author: Nigel Calder

In search of abundant energy

Years ago when I was researching and writing the first edition of my book, Boatowner’s Mechanical and Electrical Manual, I spent a great deal of time studying ways to make electrical systems more powerful and reliable.

Where did the reef go?

The recent article describing various vessel groundings and losses in the Pacific during the last year or two (“More than zoom levels,” January/February 2018) highlights a glaring weakness in many electronic charts.

Improving fuel efficiency

Recently, the European Union funded a HYbrid MARine (HYMAR) project involving several researchers and myself that explored the possibilities of hybrid marine propulsion.

The cost of energy on boats

Ways to increase electrical system efficiency and get more power for the money One important area for any voyager is understanding, and improving, the efficiency of the electrical systems on his or her boat. To do this requires knowledge of…

Battery revolution

Ever since electricity has been put on boats, in one way or another batteries have held back the development of effective DC and AC systems.