Bud's Offshore Energy (BOE)

New York’s looming, self-imposed electric power crisis:

Something here does not remotely add up.  If New York state succeeds by 2030 in closing its natural gas plants — the plants that account for 60% of the State’s generation capacity — that would bring our total installed capacity down from 37.5 GW to as little as 15 GW. But we need almost 60 GW to meet projected demand.  And that’s 60 GW that can be called on any time as needed to meet peak usage.  The 9 GW of projected offshore wind turbines wouldn’t make much of a dent even if they operated all the time and could be dispatched to meet peak demand, which they can’t.  Instead, they will operate only about a third of the time, and at their own whim.  At best they will provide about 3 GW on average, when what we need for this full electrification project is more like 45 GW of dispatchable power to add to our existing hydro and nuclear.   

Manhattan Contrarian

Power generation realities:

• Assuming sufficient capacity, gas power plants respond to variable demand.
• Wind and solar power are intermittent, such that demand must respond to variable supply (not a prescription for economic growth).
• Power grids can function effectively with only natural gas, but not with only wind/solar.
• Integrated wind, solar, and gas systems can reduce, but not eliminate, demand for gas-generated power.

Offshore platforms: In some regions, there is a push to power platforms with renewable energy transported by electric cable. Currently, most platforms are efficiently powered by gas turbines which satisfy energy needs even when demand spikes during well operations like tripping out of the hole. The extent to which renewables can reliably support platform operations during these and other operations, when power interruptions are unacceptable from a safety standpoint, is a risk that must be assessed prior to committing to alternative energy sources.

The environmental benefits of powering platforms with renewable energy also have not been clearly documented. In most cases, offshore platforms produce sufficient gas to support their power demands. Should platforms be powered by imported electricity, gas that is not used for platform operations would presumably be marketed for consumption elsewhere or reinjected.

If the gas is marketed and consumed elsewhere, there is essentially no net (global) CO2 emissions reduction benefit. Gas that is reinjected is wasted unless there is an enhanced oil recovery benefit. So, the net environmental benefit from importing electric power seems questionable, and the operational risks could be significant.

Read Full Post »