DCP / Public engineering overview

From policy to operating results

DCP treats safety and business requirements as constraints before evaluating cost, energy use and resource life. Not every load is flexible, and not every migration produces a benefit.

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01Coordinate across time horizons

Device protection, local control and scheduling have different roles. Measure actual response times; animation is not a performance test.

Protection & local response

Devices retain protection duties. Local coordination checks capacity, reserves and critical loads before authorized adjustments.

Rolling schedules

Update plans using queues, generation, power trends and business priorities. Limit unnecessary switching and recovery rebounds.

Day-ahead planning

Forecast demand, renewables, tariffs and tasks to plan operation, then correct deviations using observed conditions.

02Establish real flexibility

Adjustable capacity depends on operating conditions, not just nameplate ratings.

Power & dynamics

Check available and minimum power, ramp rate, duration and recovery time. Deduct protection margins and committed capacity.

Business & data

Separate uninterrupted, degradable and deferrable tasks. Check runtime, data location, bandwidth and deadlines before migration.

Full cost

Include energy, demand charges, migration, delays, battery wear and maintenance rather than comparing tariffs alone.

03Work within capacity limits

Flexible scheduling may release usable operating headroom; it does not increase transformer or feeder ratings.

Adjust noncritical loads first

Defer charging or batch tasks within authorized limits. Protection, critical services and essential comfort requirements take priority.

Coordinate storage & compute

Assess storage duration, the service impact of power limits and whether migration is actually feasible.

Verify and recover smoothly

Compare target and measured power. Record limit violations, task completion and recovery, restoring loads in stages to avoid rebounds.

04Use consistent measurement

Simulations explain mechanisms. Project outcomes require actual metering and a consistent baseline.

Scenarios

Evaluate demand management, local renewable use, demand response and emergency continuity separately. Do not add overlapping benefits.

Verification

Record the period, weather, workload, missing data and metering boundary. Separate policy effects from equipment and external changes.

Review

Examine deviations, service levels, device states and incidents. Update resource assessments while retaining manual intervention and rollback.

ENGINEERING / INTERACTIVE MODEL

24-hour compute-power model

Illustrative model, not live data, a DCP benchmark or a return promise. Compare power, grid energy and electricity cost at equal daily work.

Flexible workload 60%Solar peak 100 kW

Inspect hour 12:00

Compute energy (unchanged)

480 kWh

Scheduled grid energy

1,788 kWh

Energy-charge difference

81.6 CNY

Grid peak (before → after)

125 → 114 kW

Site power and solar output / kW

OriginalScheduledSolar

Swipe the chart or use the hour slider above to inspect values.

12:00 · Original 115 kW · Scheduled 103 kW · Solar 100 kW

Hourly grid import / kW

OriginalScheduled

Swipe the chart or use the hour slider above to inspect values.

12:00 · Original 15 kW · Scheduled 3 kW

Daily energy charge / CNY

Original1,271.2

Scheduled1,189.6

02,400 CNY

Same tariffs and daily energy; grid energy charges only.

Scheduled energy supply / kWh

Grid: 1,788 kWh
On-site solar: 762 kWh
Total site energy: 2,550 kWh

Solar consumed + grid imports = site demand. Surplus solar earns no revenue in this model.

Assumptions, limitations and hourly data

Synthetic day, 1-hour steps. Fixed load: 95 kW at 08–17, 105 kW at 18–21, otherwise 70 kW. Original compute: 20 kW × 24 h. Movable work is ready at 00:00 and due by 24:00. Site limit: 160 kW. Assign 1 kWh increments by marginal grid cost. Illustrative tariffs: 0.4 at 00–06 and 23, 1.1 at 17–21, otherwise 0.7 CNY/kWh, not a regional tariff. Excludes migration overhead, demand charges, storage, depreciation, taxes, export revenue and emissions. Peak reduction is not the objective; grid peak may increase. Solar follows a synthetic sine curve.

Illustrative raw data · kW / CNY per kWh
Hour	Original	Scheduled	Solar	Grid·before	Grid·after	Tariff
0	90	114	0	90	114	0.4
1	90	114	0	90	114	0.4
2	90	114	0	90	114	0.4
3	90	114	0	90	114	0.4
4	90	114	0	90	114	0.4
5	90	114	0	90	114	0.4
6	90	114	0	90	114	0.4
7	90	78	26	64	52	0.7
8	115	103	50	65	53	0.7
9	115	103	71	44	32	0.7
10	115	103	87	28	16	0.7
11	115	103	97	18	6	0.7
12	115	103	100	15	3	0.7
13	115	103	97	18	6	0.7
14	115	103	87	28	16	0.7
15	115	103	71	44	32	0.7
16	115	103	50	65	53	0.7
17	115	103	26	89	77	1.1
18	125	113	0	125	113	1.1
19	125	113	0	125	113	1.1
20	125	113	0	125	113	1.1
21	125	113	0	125	113	1.1
22	90	78	0	90	78	0.7
23	90	114	0	90	114	0.4

Hour	Original	Scheduled	Solar	Grid·before	Grid·after	Tariff
0	90	114	0	90	114	0.4
1	90	114	0	90	114	0.4
2	90	114	0	90	114	0.4
3	90	114	0	90	114	0.4
4	90	114	0	90	114	0.4
5	90	114	0	90	114	0.4
6	90	114	0	90	114	0.4
7	90	78	26	64	52	0.7
8	115	103	50	65	53	0.7
9	115	103	71	44	32	0.7
10	115	103	87	28	16	0.7
11	115	103	97	18	6	0.7
12	115	103	100	15	3	0.7
13	115	103	97	18	6	0.7
14	115	103	87	28	16	0.7
15	115	103	71	44	32	0.7
16	115	103	50	65	53	0.7
17	115	103	26	89	77	1.1
18	125	113	0	125	113	1.1
19	125	113	0	125	113	1.1
20	125	113	0	125	113	1.1
21	125	113	0	125	113	1.1
22	90	78	0	90	78	0.7
23	90	114	0	90	114	0.4

Hour	Original	Scheduled	Solar	Grid·before	Grid·after	Tariff
0	90	114	0	90	114	0.4
1	90	114	0	90	114	0.4
2	90	114	0	90	114	0.4
3	90	114	0	90	114	0.4
4	90	114	0	90	114	0.4
5	90	114	0	90	114	0.4
6	90	114	0	90	114	0.4
7	90	78	26	64	52	0.7
8	115	103	50	65	53	0.7
9	115	103	71	44	32	0.7
10	115	103	87	28	16	0.7
11	115	103	97	18	6	0.7
12	115	103	100	15	3	0.7
13	115	103	97	18	6	0.7
14	115	103	87	28	16	0.7
15	115	103	71	44	32	0.7
16	115	103	50	65	53	0.7
17	115	103	26	89	77	1.1
18	125	113	0	125	113	1.1
19	125	113	0	125	113	1.1
20	125	113	0	125	113	1.1
21	125	113	0	125	113	1.1
22	90	78	0	90	78	0.7
23	90	114	0	90	114	0.4

Hour	Original	Scheduled	Solar	Grid·before	Grid·after	Tariff
0	90	114	0	90	114	0.4
1	90	114	0	90	114	0.4
2	90	114	0	90	114	0.4
3	90	114	0	90	114	0.4
4	90	114	0	90	114	0.4
5	90	114	0	90	114	0.4
6	90	114	0	90	114	0.4
7	90	78	26	64	52	0.7
8	115	103	50	65	53	0.7
9	115	103	71	44	32	0.7
10	115	103	87	28	16	0.7
11	115	103	97	18	6	0.7
12	115	103	100	15	3	0.7
13	115	103	97	18	6	0.7
14	115	103	87	28	16	0.7
15	115	103	71	44	32	0.7
16	115	103	50	65	53	0.7
17	115	103	26	89	77	1.1
18	125	113	0	125	113	1.1
19	125	113	0	125	113	1.1
20	125	113	0	125	113	1.1
21	125	113	0	125	113	1.1
22	90	78	0	90	78	0.7
23	90	114	0	90	114	0.4