16/10/2024
To revise the budget for exceeding Jersey's energy needs by 25%, we first calculate the adjusted target energy supply based on their current needs.
# # # Step 1: Current Energy Demand
Jersey's final energy consumption (FEC) in 2022 was 135,976 toe (tonnes of oil equivalent)【23†source】. This includes all energy forms: electricity, petroleum products, and gas.
# # # Step 2: Increase Target by 25%
To exceed this demand by 25%, the new target would be:
135,976 \times 1.25 = 169,970 \text{ toe}
# # # Step 3: Convert Energy to Power Requirement
Since we’re focusing on electricity, we can convert toe to MWh, as SMRs are typically rated in terms of electrical output. One toe equals about 11.63 MWh.
169,970 \text{ toe} \times 11.63 \text{ MWh/toe} = 1,975,772 \text{ MWh/year}
This is the total electricity required per year to exceed Jersey’s energy consumption by 25%.
# # # Step 4: Determine Reactor Size
Next, we calculate the required reactor capacity. A reactor’s annual output in MWh can be estimated by multiplying its power (in MW) by the number of hours in a year (8,760 hours):
\text{Required reactor size (MW)} = \frac{1,975,772 \text{ MWh}}{8,760 \text{ hours}} = 225.5 \text{ MW}
So, a reactor (or combination of reactors) with a 225.5 MW capacity would meet Jersey’s energy needs with a 25% buffer.
# # # Step 5: Budget for a 225 MW SMR
The cost of SMRs typically ranges between $3,000 to $7,000 per kW of installed capacity【5†source】【23†source】. For a 225 MW (225,500 kW) reactor, the cost would be:
225,500 \text{ kW} \times \$3,000/\text{kW} = \$676.5 \text{ million} \quad \text{(lower bound)}
225,500 \text{ kW} \times \$7,000/\text{kW} = \$1.578 \text{ billion} \quad \text{(upper bound)}
# # # Conclusion:
To exceed Jersey's energy needs by 25%, the budget would need to be between $676 million and $1.578 billion for an SMR with approximately 225 MW of capacity. This is consistent with the cost estimates for various SMR projects currently in development【5†source】【23†source】.