this flow;</li>
<li>
<code>Product</code> indicates the energy carrier for this flow;
and</li>
<li>
<code>E.ktoe</code> gives the magnitude of this flow in <a href="https://www.eia.gov/energyexplained/units-and-calculators/energy-conversion-calculators.php" class="external-link">units</a>
of kilotons of oil equivalent (ktoe).</li>
</ul>
<p>Each flow is its own observation (its own row) in the
<code>UKEnergy2000</code> data frame, making it <a href="https://tidyr.tidyverse.org/articles/tidy-data.html" class=