 or a network supply point. The transaction between the building and the network operator is inside that boundary and doesn't affect the objective.</li>
<li>Put some buildings on that tariff using the <a href="#editing-tariffs">editor controls</a>.</li>
</ol>

<p>
A tariff has three parts:
</p>

<ul class="org-ul">
<li>A fixed <b>standing charge</b>, which the building pays to the network every year.</li>
<li>A variable per-kw <b>capacity charge</b>, which the building pays to the network every year multipl