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The Crown Estate 2008 Macro Algae


The unit is a hectare.

Page 72: This just reports other sources, which appear to be based on what costs would have to be, rather than what costs are:

Sanderson (2006) estimated the costs of setting up a one ha seaweed farm, based on a detailed breakdown of the costs per 40 m longline (surface barrel-floats, headline, anchor rope, stainless steel swivels, thimbles for splicing, shackles and mooring blocks) of £2382.49, depreciated over 5 years, together with approximations of other annual costs. Following on from these assumptions he estimated the one ha plot would have to yield worth 130 t wet weight, worth £500 t-1 to break even.


Table 5.3 Comparative data on energy output from different feedstocks compiled by Lucy Lewis, Greenfinch Ltd; Laminaria saccharina values derived from Chynoweth et al. (1987), values in lightly shaded sections are estimates and will vary with growing conditions. Values in the darkly shaded areas are based on the unsupported assumption that the cost of L. saccharina production* will be equivalent to that of the most expensive terrestrial crop used in the comparison


The estimated costs generated by Sanderson (2006) are almost certainly over estimates, and could be considerably lower given economies of scale.

Other sets of cost data

Air Conditioning Air Source Heat Pump Air Source Heat Pump with Storage (commercial) Air Source Heat Pump with Storage (domestic) Battery Storage Biogas Biomass 1st generation biocrops Biomass 2nd generation biocrops Biomass Boiler (commercial) Biomass conversion 1st generation energy crops to liquid Biomass conversion 2nd generation energy crops to gas Biomass conversion 2nd generation energy crops to liquid Biomass conversion dry biomass and waste to gas Biomass conversion dry biomass and waste to liquid Biomass conversion dry biomass, biocrops and waste to solid Biomass conversion gas to gas Biomass conversion wet biomass and waste to gas Biomass conversion wet biomass and waste to liquid Biomass forestry arisings collection Biomass liquid fuel imports Biomass manure collection Biomass solid fuel imports Biomass straw collection Biomatter to fuel conversion Bus EV Bus Hybrid EV Bus Hydrogen FCV Bus ICE Carbon Storage Cars EV Cars Fuel Cell Vehicle Cars ICE Cars PHEV Cavity wall insulation CHP Coal CCS Coal-fired Boiler Coal Price Commercial cooking demand reduction Commercial Heat Demand Commercial lighting and appliances Compressed Air storage Conventional Coal Electricity Generation Conventional Gas Electricity Generation Cooking District Heating (domestic) District Heating Network Draughtproofing Electric heating Electricity Distribution Electricity Grid Distribution Costs Electricity Grid Transmission Costs Electricity Transmission Energy Saving Trust’s Advanced Practice Energy Efficiency standard for New Build Enteric fermentation abatement Exported Electricity Floor insulation Fossil Fuel Transfer Costs Gas Boiler Gas CCS Electricity Generation Gas (Natural or Biogas) CHP Gas Price Geosequestration Geothermal Electricity Geothermal Heat Ground Source Heat Pump (commercial) Ground Source Heat Pump Ground Source Heat Pump with Storage (commercial) Ground Source Heat Pump with Storage (domestic) Heat exchanger for District heating Hydroelectricity Hydro pumped storage Imported Electricity Imported Uranium Interconnection International Aviation International Shipping Loft Insulation Macro Algae Manure management Micro CHP Microwind Nuclear Power Offshore Wind Oil Electricity Generation plants Oil-fired boiler Oil fired Boiler Oil Price Onshore Wind Passenger Rail Passiv Haus Pumped storage - Hydro Rail Freight Range - Cars ICE Road Freight Soil management Soil management level 1 Solar PV Solar Thermal (commercial) Solar Thermal Solid Biomass Electricity Generation 2050 Solid Biomass Electricity Generation Solid Fuel Boiler (inc Biomass) Solid Fuel CHP Solid wall insulation Conventional Oil Electricity Generation Temporary Superglazing Test category Tidal Range Tidal Stream UK National Aviation UK National Shipping Uranium Enrichment & Disposal Waste collection and separation Waste landfill gas capture Waste landfill sites Waste sewage gas capture Wave

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