Re:UK Wind Farms Are Overstating Their Output
by ta1243 on Thursday February 01, 2024 @10:14AM
(#39216809)
SME workshops made an assumption they would be able to get cheap electricity for the entire time. The reason prices went upto 111p/kWh was because of the price of gas and oil skyrocketting as demand ballooned post covid, sanctions hit, and fears of war skyrocketed. That's nothing to do with renewables.
If variation is a significant and long term then grid sized storage will buy low and sell high.
Consider a small CNC routing enterprise running 4 machines. Each machine averages 25kW, with extraction, air supply etc contributing another 50kw. Heating the space in winter (CNC routers lock out if the ambient temperature drops below 18c) is incredibly inefficient, because when the extractors are running you're emptying the workshop of air (that you paid to heat) multiple times an hour.
Pre-covid the hourly electricity run rate would be in the region of £45/hr (0.27p / kWh)
At the worst of the energy price crises, the run rate was > £180/hr (I know of one shop that was paying 111p/kWh for a period).
Now we're paying 0.38p / kWh or £70/hr. That's a baseline increase of >£10k a year...
SME workshops have died because their pricing model just couldn't flex to accommodate that.
STABLE energy pricing is equally important as CHEAP energy pricing.