Biomass may be a carbon-neutral energy solution, a building industry trade publication has suggested.According to a feature in issue 12 of Building, biomass heating and combined heat and power (CHP) systems are considered to be carbon neutral, as emissions released from the combustion of biological material are offset by the growth cycle of plants used for the strategy.Biomass projects are thought to be incorporated into the renewables strategy of around one-quarter of larger London projects, while research from the Carbon Trust has indicated that installing CHP systems may be successful in both large and small-scale operations.The publication added that when compared with other forms of microgeneration such as solar or wind power, biomass technology is less expensive to install - with a heat-only system costing between £150 and £750 per kilowatt.The Energy Saving Trust has claimed that homeowners may be able to save up to £200 on annual heating bills by installing a biomass-fuelled boiler.