Ejemplo n.º 1
0
  public InvestmentCalculations() {
    super(
        "Investment Calculations",
        "A calculator that allows you to see how much money a simulation is saving.",
        IconLoader.getIcon("calendar.png"));

    outputWidgetPanel.setLayout(new BorderLayout(0, 0));
    JScrollPane m_scroller = new JScrollPane();
    outputWidgetPanel.add(m_scroller, BorderLayout.CENTER);

    JPanel header = new JPanel(new BorderLayout(0, 0));
    JPanel gridit = new JPanel(new GridLayout(0, 4));

    outputWidgetPanel.add(header, BorderLayout.PAGE_START);
    header.add(m_toolbar, BorderLayout.PAGE_START);
    header.add(gridit, BorderLayout.CENTER);

    m_toolbar.add(m_output.getPrintButton());
    m_toolbar.add(m_output.getSaveButton());
    m_toolbar.add(m_clear_baseline);

    m_clear_baseline.addActionListener(
        new ActionListener() {
          @Override
          public void actionPerformed(ActionEvent arg0) {
            baselineSet = false;
            m_output.setText(INFO_TEXT);
          }
        });

    gridit.add(new JLabel("Product Life (Years)"));

    gridit.add(m_productLifeYears);

    gridit.add(new JLabel("Initial Cost ($)"));
    gridit.add(m_initalCostSpinner);
    gridit.add(new JLabel("Minimum Rate of Return"));

    gridit.add(m_returnSpinner);
    gridit.add(new JLabel("Maximum Payback Period (Years)"));
    gridit.add(m_MaximumPaybackPeriodSpinner);

    m_output.setContentType("text/html");
    m_scroller.setViewportView(m_output);
    m_output.setText(INFO_TEXT);
  }
Ejemplo n.º 2
0
  @Override
  public void generate(PredictionModel model) {
    // Start time must be at least a year after end time.
    if (!model.getStartTime().plusTime(new TimeDelta(365)).before(model.getEndTime())) {
      return;
    }

    BillDisplay bd = new BillDisplay(1);
    bd.generate(model);

    if (!baselineSet) {
      try {
        lbsCO2Baseline = bd.getLbsCO2Year(); // (Double)	ipc.get("lbsCO2Year");
        lbsSO2Baseline = bd.getLbsSO2Year();
        lbsNOxBaseline = bd.getLbsNOxYear();
        lbsHGBaseline = bd.getLbsHgYear();
        lbsCH4Baseline = bd.getLbsCH4Year();
        lbsN2OBaseline = bd.getLbsN2OYear();
        billTotals = bd.getFirstYearBills();
      } catch (Exception e) {
        m_logger.error(e.getMessage(), e);
        throw new IllegalArgumentException(
            "The needed params could not be found, perhaps you are missing a plugin.");
      }
      lastStart = model.getStartTime();
      lastEnd = model.getEndTime();

      m_output.setText(
          "Baseline is ready, make your changes now, and re-generate the model to see effects.");
      baselineSet = true;
    } else {
      if (!model.getStartTime().equals(lastStart) || !model.getEndTime().equals(lastEnd)) {
        m_output.setText(
            "The date params have changed! Clear the baseline, or re set the start and end times to:"
                + "Start: "
                + lastStart
                + " end: "
                + lastEnd);
        return;
      }
      generateBaselineOutput(bd);
    }
  }
Ejemplo n.º 3
0
  /** @param args */
  public void generateBaselineOutput(BillDisplay bd) {
    double NPV;

    // Savings is just $Baseline run - $ modified Run for all the bills in that year
    double lbsCO2SavedLifetime = lbsCO2Baseline - bd.getLbsCO2Year();
    double lbsSO2SavedLifetime = lbsSO2Baseline - bd.getLbsSO2Year();
    double lbsNOxSavedLifetime = lbsNOxBaseline - bd.getLbsNOxYear();
    double lbsHGSavedLifetime = lbsHGBaseline - bd.getLbsHgYear();
    double lbsCH4SavedLifetime = lbsCH4Baseline - bd.getLbsCH4Year();
    double lbsN2OSavedLifetime = lbsN2OBaseline - bd.getLbsN2OYear();
    double[] secondBills = bd.getFirstYearBills();
    // Sum these from the emissions report.  Baseline Emissions - modified emissions.

    final double productLifetime = m_productLifeYears.getDouble();

    double[] Savings = new double[billTotals.length];
    for (int i = 0; i < secondBills.length; i++) Savings[i] = billTotals[i] - secondBills[i];

    System.out.println(Arrays.toString(billTotals));
    System.out.println(Arrays.toString(secondBills));
    System.out.println(Arrays.toString(Savings));

    double yearlySavings = 0;
    for (int i = 0; i < billTotals.length; i++) yearlySavings += Savings[i];

    System.out.println(yearlySavings);

    double NPVZero;
    double InternalRateOfReturn;

    // User Inputs
    double InitialCost = m_initalCostSpinner.getDouble();
    double MinimumRateofReturn = m_returnSpinner.getDouble();
    double MaximumPaybackPeriod = m_MaximumPaybackPeriodSpinner.getDouble();
    // End User Inputs

    InternalRateOfReturn = 999999;
    NPVZero = 99999;
    double PaybackPeriodDec = 0;
    double SumofCashflows = -InitialCost;
    for (double i = 0; i <= 2000; i++) {
      if (NPVZero >= 0) {
        InternalRateOfReturn = 0 + i / 1000;
        NPVZero = 0;
        for (int Year = 0; Year <= productLifetime; Year++) {
          if (Year == 0)
            NPVZero =
                (-InitialCost + yearlySavings) / (Math.pow((1 + InternalRateOfReturn), Year))
                    + NPVZero;
          else NPVZero = yearlySavings / (Math.pow((1 + InternalRateOfReturn), Year)) + NPVZero;
        }
      }
    }
    boolean PaybackPeriodFlag = true;
    double PaybackPeriod;
    PaybackPeriod = 100;
    NPV = 0;
    for (int Year = 0; Year <= productLifetime; Year++) {
      if (Year == 0)
        NPV = (-InitialCost + yearlySavings) / (Math.pow((1 + MinimumRateofReturn), Year)) + NPV;
      else NPV = yearlySavings / (Math.pow((1 + MinimumRateofReturn), Year)) + NPV;
      SumofCashflows = yearlySavings + SumofCashflows;
      if (SumofCashflows >= 0 && PaybackPeriodFlag) {
        PaybackPeriodDec = 1 - SumofCashflows / yearlySavings;
        PaybackPeriod = Year - 1 + PaybackPeriodDec;
        PaybackPeriodFlag = false;
      }
    }

    String document = "";

    document += generateRow("Financial Report", "");

    document += generateRow("Initial Cost", String.format("$ %.2f", InitialCost));
    document += generateRow("Product Lifetime", m_productLifeYears.getDouble() + " Years");
    document +=
        generateRow(
            "Maximum Allowed Payback Period", String.format("%.2f Years", MaximumPaybackPeriod));
    document +=
        generateRow(
            "Minimum Rate of Return", Math.round(MinimumRateofReturn * 10000) / 100.0 + " %");
    document += generateRow("Predicted Payback Period", String.format("%.2f Years", PaybackPeriod));
    document +=
        generateRow(
            "PredictedInternal Rate Of Return",
            Math.round(InternalRateOfReturn * 10000) / 100.0,
            " %");
    document += generateRow("Predicted Net Present Value", String.format("$ %.2f", NPV));
    document += generateRow("Yearly savings", yearlySavings);

    if (InternalRateOfReturn >= MinimumRateofReturn
        && PaybackPeriod <= MaximumPaybackPeriod
        && NPV >= 0) document += generateRow("Is Measure Reccomended?", "Yes");
    else document += generateRow("Is Measure Reccomended?", "No");

    document += generateRow("", "");
    document += generateRow("", "");
    document += generateRow("Emissions Report (Yearly Savings)");
    document += generateRow("", "");
    document += generateRow("CO2 Saved", lbsCO2SavedLifetime + " lbs/yr");
    document += generateRow("SO2 Saved", lbsSO2SavedLifetime + " lbs/yr");
    document += generateRow("NOx Saved", lbsNOxSavedLifetime + " lbs/yr");
    document += generateRow("HG Saved", lbsHGSavedLifetime + " lbs/yr");
    document += generateRow("CH4 Saved", lbsCH4SavedLifetime + " lbs/yr");
    document += generateRow("N2O Saved", lbsN2OSavedLifetime + " lbs/yr");
    document += generateRow("", "");
    document += generateRow("Emissions Report (Lifetime Savings)");
    document += generateRow("", "");
    document += generateRow("CO2 Saved", lbsCO2SavedLifetime * productLifetime + " lbs");
    document += generateRow("SO2 Saved", lbsSO2SavedLifetime * productLifetime + " lbs");
    document += generateRow("NOx Saved", lbsNOxSavedLifetime * productLifetime + " lbs");
    document += generateRow("HG Saved", lbsHGSavedLifetime * productLifetime + " lbs");
    document += generateRow("CH4 Saved", lbsCH4SavedLifetime * productLifetime + " lbs");
    document += generateRow("N2O Saved", lbsN2OSavedLifetime * productLifetime + " lbs");

    m_output.setText(document);
  }