Subsidies and Grid Stability: Why $/kWh Cost Comparisons Miss the Point of Power's Real Cost
Fossil fuel industries still command government subsidies reportedly amounting to nine times what renewables receive, according to UnderpantsWeevil. The technical discussion centers on how cost metrics fail to account for fundamental energy generation differences.
Debaters sharply divided over the correct cost benchmark. Some argue that comparing $/kWh is flawed, pointing out that steady-output renewables shouldn't be measured against finite-lifespan fuels, leading to suggestions of using a $/kW comparison (kibiz0r). Conversely, others claim the real obstacle is utility manipulation, suggesting entities like those noted by suzucappo intentionally inflate costs to cover mandated grid upgrade expenses. A deeper technical challenge was raised by chonglibloodsport regarding the irreplaceable, real-time 'throttling' capability that solar power fundamentally lacks when matching fluctuating demand.
The weight of opinion shows consensus: the barrier is not technology. The system is choked by entrenched political and economic structures. The core fault lines are the persistent, uneven government subsidization favoring fossil fuels and the inability of current cost models to incorporate systemic operational necessities, like dispatchability and grid stability.
Key Points
Fossil fuels receive vastly disproportionate government subsidies compared to renewables.
UnderpantsWeevil claimed fossil fuel subsidies reach nine times that of renewable sources.
Using $/kWh for cost comparison is mathematically flawed.
kibiz0r argued that $/kWh fails to account for the physical difference between decades-long output sources and finite-use fuels, suggesting $/kW instead.
Utilities might deliberately overcharge for renewables.
suzucappo suggested utilities inflate costs to offset unpredicted costs from mandated infrastructure overhauls.
Intermittent generation capacity is a critical functional gap.
chonglibloodsport emphasized that only continuously adjustable fossil fuel plants can match real-time demand spikes, a function solar lacks.
The problem is fundamentally political, not technical.
UnderpantsWeevil stressed that decision-makers determining power generation are disconnected from the end-users paying the final bill.
Source Discussions (3)
This report was synthesized from the following Lemmy discussions, ranked by community score.