schoonschip: costs and time line TOTAL COSTS AND LABOR euros 300000 250000 200000 150000 100000 BREAK EVEN ZONE 50000 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 phase I phase II phase III years solar PV system large community greenhouse electricity storage upgrade DIY SUSTAINABILITY SCENARIO The elements we have recommended in phase one cost an estimated total of 29.000 € per boat, the most expensive of which is the additional cost of building a house to Passive House standard. It is important to remember with all of these costs, however, that they replace certain costs in the standard scenario. For example, as a result of adopting the passive house standard, the individual buildings will no longer need a heating system and will continue to save money on fossil fuel costs each year. One of the primary standard costs in the case of Schoonschip is the set of utility connections to gas, water, and sewage, which are all avoided in the plan we describe. This saves an estimated 12.000 euros per boat in phase one. Many of the other recommendations we make, such as an LED lighting plan, are of increasingly comparable price to a standard lighting alternative. Elements such as the urine separating toilet and the hybrid heat pump / electric boiler would have a similar cost if standard items were purchased. This graph is indicative of the general pattern of investment and return of the base case (business as usual) in comparison with the DIY sustainability scenario we describe in this report. Overall, we estimate that the net additional cost of the sustainable DIY scenario in phase one is between 5.000 € - 10.000 € more than the standard. In phase two, the investment is once again between 5.000 € - 10.000 €. In the best case scenario, the break even point comes as early as in five years, and the home continues to be an asset that avoids costs and earns money for its owners aſter that point. Estimated cumulative technology investments and returns per household (Schoonschip) STANDARD SCENARIO As with the scenario described for de Ceuvel, Schoonschip can receive very favorable return on investment in the “sustainable DIY” scenario we describe here because of two primary factors: the low cost of the DIY approach and the avoidance of standard costs that are part of the business as usual scenario. Pagina 63
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