anchor.diff:  <h2>Interface / Website</h2>
   <ul>
     <li>Internet Explorer 7 and 8 have been known to give errors and not load several charts. These old browsers are not or not fully supported.</li>
  -  <li>The slider 'washing machine' (in Demand > Households > Appliances) and the slider 'low-temperature washing' (in Demand > Households > Behavior) can affect each other incorrectly
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positive.code: <ul>
    <li>As yet, kerosene and heavy fuel oil have no extra refinery costs (on top of crude oil). These will be analyzed and resolved in one of the next versions.</li>
    <li>We are currently still validating costs for certain power plants (coal-fired, hydro and nuclear power plants) and household and building heating technologies. These may therefore result in incorrect costs.</li>
    <li>We are currently overhauling all Combined Heat and Power plants in the ETM. We expect this to be finished by the end of September. This will affect both energy and cost calculations. </li>
    <li>Costs of insulation are currently related to the amount of energy that is saved by insulating. Because this amount depends on both the 'heat demand per person' and 'outdoor temperature' slider settings, the cost of insulation (incorrectly) depends on these settings as well.</li>
    <li>The cost calculation for insulation in the ETM is based on the simplifying assumption that costs scale linearly with saved energy. This approximation will overestimate the costs for low degrees of insulation, and underestimate the costs for high insulation values. The reason is that, in reality, cost-effective measures are applied first, while the last few percent of savings require large investments. We have planned a complete overhaul of this part of the ETM which will improve the cost calculation for insulation considerably. </li>
  </ul>
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negative.code:       <li>The hydropower plants (both river and mountain)</li>
        <li>Central burners for heat generation in the Supply section (coal, gas, biomass and waste-fired)</li>
        <li>Appliances (washing machines, stereos etc.)</li>
      </ul>
  </ul>
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