/span><span class="o">.</span><span class="n">pf</span><span class="p">()</span>  <span class="c1"># solve power flow</span>
<span class="n">p</span><span class="o">=</span><span class="n">plot_results</span><span class="p">(</span><span class="n">grid_1</span><span class="p">)</span>
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