PV and storage coordination
Integrate inverters, PCS, BMS, meters and environmental sensors for power dispatch, curtailment, peak shaving and operating state monitoring.
Energy Management Software
EMS software for solar, storage, gensets and EV charging
CodeWatt builds software for commercial energy storage, microgrids and hybrid energy sites, covering device integration, control strategy, market dispatch, data acquisition, alarms and platform integration.
4European power markets, refreshed daily
32bidding zones with live day-ahead prices
17device protocols digitized
1,596points mapped the way our EMS parses them
Live platform
Software you can open, not just read about
The CodeWatt Hub puts the data and tools our engineers use every day online: European day-ahead prices, digitized device point tables, field debugging utilities and an engineering wiki.
Account
Account
Account
Open
Open
Market prices →
Day-ahead curves for European bidding zones, refreshed after every auction — 15-minute resolution where the market trades it.
Nord PoolENTSO-EOMIE
Strategy lab →
Joint load + PV + storage dispatch on real day-ahead curves — green self-consumption or profit-max, with tunable plant parameters.
Optimal dispatchGreen / profit modes
Protocol library →
Vendor point tables digitized exactly the way our EMS parses them — telemetry, status, control, setpoints and alarms, mapped to standard points.
17 protocols1,596 pointsModbus · IEC 61850
Field toolbox →
Byte order and IEEE-754 conversion, Modbus and DL/T 645 frame decoding, CRC16, timestamps — everything runs in your browser.
6 tool groupsNo data leaves the page
Engineering wiki →
Notes from real storage, microgrid and market-integration projects, published in Markdown for anyone to read.
MarkdownOpen to read
Prices and the protocol library are available to customers and partners — for an account, email frank@eco-watt.com. The toolbox and wiki need no sign-in.
What we build
Clear control chains for real energy sites
Genset and microgrid control
Handle grid/off-grid switching, genset start-stop, load priority, SOC constraints and protection logic so field strategies remain executable and testable.
EV charging and load management
Coordinate charging power with site load, storage availability and tariff strategy, including station limits and operational data aggregation.
Edge and platform software
Build edge acquisition, protocol gateways, strategy services, visualization APIs and upstream platform integration with maintainable configuration.
Business scenarios
Energy software for different market rules
Dynamic price arbitrage
Build charge-discharge schedules, revenue calculations and execution loops around day-ahead/intraday prices, SOC, power limits and site load.
FCR frequency response
Develop EMS controls and data interfaces for storage participation in ancillary services, considering response behavior, available capacity and operating boundaries.
Grid aggregator integration
Connect resource registration, dispatch instructions, telemetry, adjustable resource state, execution feedback and exception handling.
Primary balancing and output control
Support Japanese primary adjustment capacity, output control and site dispatch workflows across device control, power limits and platform interaction.
Off-grid solar-storage-diesel
Coordinate PV, storage, diesel generation and load priority for weak-grid and off-grid sites, balancing supply continuity and fuel economy.
Protocols
Energy field protocols and device differences
Protocol integration means more than reading frames. It includes point tables, units, timestamps, quality flags, reconnect behavior, vendor differences and efficient field commissioning.
Modbus RTU
Modbus TCP
IEC 61850
IEC 104
CAN
DL/T 645
DL/T 698
Custom Gateway
Approach
From point tables to strategy, from site to platform
- Device integrationClarify point tables, protocols, sampling cycles and device state semantics.
- Control strategyImplement power allocation, SOC constraints, alarm interlocks and operating mode transitions.
- Engineering deliveryDeliver software modules that are debuggable, operable and ready to extend.
Contact