NovaNews: Denhaan's goes green, everybody wins - by Heather Killen

Denhaan's goes green, everybody wins - by Heather Killen

Denhaan’s operation in Lawrencetown is giving a new meaning to green tomatoes. Luke Denhaan, operational manager, said a new biomass heating system installed two years ago at the Fitch Rd. greenhouse is not just paying for itself, but is paying dividends to the local economy, and the environment.

The operation employs between 25 and 50 people throughout the year, and produces nearly two million pounds of tomatoes that are sold throughout Atlantic Canada. With oil prices so unstable, it was no longer feasible to continue heating the operation using fossil fuels. Denhaan said that the new state of the art biomass system guarantees the facility’s future. "It came down to shut the doors, or invest in green energy," he said. "With the old system we were using about 65,000 to 100,000 litres of propane, it’s dropped to about 4,000."

Denhaan said before they made the move to the wood burning system, they compared several alternative energy heating systems, and looked at what was working well in Holland greenhouses. The $750,000 biomass system, shipped from Ontario, promised a cheaper and more readily available fuel alternative. "It burns about 3000 cord a year," he said. "We buy waste wood from local people, and then run the logs through a chipper." They investigated the possibility of using geothermal energy, but found that the high cost of installing the system prohibitive. Some greenhouses in Holland rely on this type of energy, which uses deep pipes to draw energy form the earth. He added that eventually they might shift to this type of energy in the future.