Energy balance in Suzhou

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Question

What are the amounts of energy produced, consumed, imported, and exported in Suzhou?

Rationale

There are several energy transformations that each describe a specific process of energy production or use. Per unit activity, there is a constant amount of different inputs and outputs into and from this process, respectively. These unit processes are used for Suzhou in such a way that one critical input or output from each relevant energy transformation is listed here; all other inputs and outputs logically follow from the nature of the transformation process.

Data

Equations(GWh /a?)

Obs	Equation	Dummy	Description
1	TP raw coal + TP natural gas + TP oil products + TP coal products + TP other energy + TP heat = TP electricity + TP loss	1	In energy balance, inputs and outputs cancel out. Balance Thermal Power Plants. 17194.0 + 670.9 + 21.4 + 1145.5 + 198.0 + 54.7 = 7460.4 + 11824.1, respectively (GWh /a?).
2	TP natural gas = 0.039019425*TP raw coal	1	Fraction from TP raw coal.
3	TP oil products = 0.001244620*TP raw coal	1	Fraction from TP raw coal.
4	TP coal products = 0.066622077*TP raw coal	1	Fraction from TP raw coal.
5	TP other energy = 0.011515645*TP raw coal	1	Fraction from TP raw coal.
6	TP heat = 0.003181342*TP raw coal	1	Fraction from TP raw coal.
7	TP electricity = 0.630948656*TP loss	1	Fraction from TP loss.
8	H raw coal + H natural gas + H oil products + H coal products + H other energy = H heat + H loss	-1	Balance Heating Supply. In energy balance, inputs and outputs cancle out
9	H natural gas + H oil products + H coal products + H other energy = 0.158111641*H raw coal	-1	(88,0+38,6+360,3+27,2)/3251,5 Others divided by raw coal. Fraction H raw coal. Sum of other fuels is used as comparison for raw coal
10	H raw coal + H oil products + H coal products + H other energy = 41.79090909*H natural gas	-1	(3251,5+38,6+360,3+27,2)/88,0 Others divided by natural gas. Fraction H natural gas. Sum of other fuels is used as comparison for natural gas
11	H raw coal + H natural gas + H coal products + H other energy = 96.55440415*H oil products	-1	(3251,5+88,0+360,3+27,2)/38,6 Others divided by oil products. Sum of other fuels is used as comparison for oil products. Fraction H oil products
12	H raw coal + H natural gas + H oil products + H other energy = 9.451290591*H coal products	-1	(3251,5+88,0+38,6+27,2)/360,3 Others divided by coal products. Fraction H coal products. Sum of other fuels is used as comparison for coal products
13	H heat = 4.451715651*H loss	-1	3074,8/690,7 heat per loss. Fraction H loss. Amount of heat is used as comparison for loss
14	CP raw coal + CP natural gas + CP oil products = CP coal products + CP loss	1	Balance Coal Processing. In energy balance, inputs and outputs cancel out
15	CP natural gas + CP oil products = 0.004725972*CP raw coal	-1	(0,007+0,0172)/5,12064 Others divided by raw coal. Fraction CP raw coal. Sum of other fuels is used as comparison for raw coal
16	CP oil products = 24.57142857*CP natural gas	1	0,01720/0,0007 oil products divided by natural gas. Fraction CP natural gas. Amount of oil products is used as comparison for natural gas
17	CP coal products = 6.341763109*CP loss	1	4,4386/0,6999 coal products per loss. Fraction CP loss. Amount of coal products is used as comparison for loss
18	Loss heat = 0.029823078*H heat	1	91,7/3074,8. Transmission loss heat. Known loss divided by production
19	Loss oil products = 0.953271028*TP oil products	1	20,4/21,4. Transmission loss oil products. Known loss divided by oil products used in TP
20	Loss electricity = 0.085276929*TP electricity	1	636,2/7460,4. Transmission loss electricity. Known loss divided by production
21	Loss natural gas = 0.3625*H natural gas	1	31,9/88,0. Transmission loss natural gas. Known loss divided by natural gas used in H
22	Bought electricity + TP electricity = Loss electricity + Cons Agri electricity + Cons Ind electricity + Cons Transportation electricity + Cons Commerce electricity + Cons Households electricity	1	Electricity use balance. In energy balance, inputs and outputs cancel out
23	H heat = Loss heat + Cons Ind heat + Cons Commerce heat	1	Heat use balance. In energy balance, inputs and outputs cancel out
24	Cons Agri electricity = 25.8468532	1	Consumed electricity agriculture
25	Cons Ind electricity = 7032.044935	1	Consumed electricity industry
26	Cons Transportation electricity = 49.8664292	1	Consumed electricity transportation
27	Cons Commerce electricity = 684.7050273	1	Consumed electricity commerce
28	Cons Households electricity = 625.3804599	1	Consumed electricity households
29	Cons Ind heat = 2981.313692	1	Consumed heat industry
30	Cons Commerce heat = 1.732034769	1	Consumed heat commerce
31	TP electricity = 7460.4	1	Electricity produced by thermal power. Assumes that there is no capacity to increase production.
32	CP coal products = 4.4386	1	Coal products produced

There are no nonlinearities.

Dependencies

• Energy balance

Calculations

+ Show code- Hide code library(OpasnetUtils) library(ggplot2) N <- 10 # Number of iterations objects.latest("Op_en5141", code_name = "initiate") balance <- Ovariable("balance", ddata = "Op_en5816.equations") nonlinearity <- Ovariable("nonlinearity", ddata = "Op_en5141", subset = "No nonlinearities") directinput <- Ovariable("directinput", ddata = "Op_en5141", subset = "No modelled upstream variables") energy.balance <- EvalOutput(energy.balance) oprint(summary(energy.balance)) ggplot(energy.balance@output, aes_string(x = "energybalanceVars", y = "energy.balanceResult")) + geom_boxplot() + theme_grey(base_size = 24) + theme(axis.text.x = element_text(angle = 90, hjust = 1, vjust= 0.2)) # objects.store(energy.balance)

----#: . Code seems to work, but gives the yellow errorbox --Heta 12:41, 27 August 2013 (EEST) (type: truth; paradigms: science: comment)

• See Energy balance.
• Model version used to run results for ISEE2013. Model run 18 Aug 2013
• Previous model version
  • Model run from a previous version (there is a problem with data).

See also

• About large systems of non-linear equations: BB package in R

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