Renewable generation
Resource, production, firm capacity, forecasting and grid connection for solar and wind generation.
Explore services ↗SALVADORAN & LATIN AMERICAN TALENT · INTERNATIONAL EXPERIENCE
Engineering for
a world
in transition.
Salvadoran and Latin American talent solving energy challenges. From El Salvador, we bring together power engineering, market studies and financial analysis to support investment, development and operational decisions, with an international outlook and solutions tailored to each market.
BASED IN EL SALVADORFOR THE WORLD ↗
GVV ENERGYEL SALVADOR → WORLD
Connecting expertise.
Advancing energy.
↗
International experience
Clients in the United States, Germany and Central America.
↗
A whole-system perspective
Generation, grids and storage connected with the market.
↗
Insight for investment
Engineering and financial analysis for long-term decisions.
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Latin American talent
Local insight and collaboration across borders.
INTERNATIONAL EXPERIENCE / CLIENTS IN
United States↗Germany↗Central America
01 / ABOUT US
Talent from here.
Impact across borders.
We are Grupo Visviva, an engineering and energy analytics firm based in El Salvador with international experience. We bring together Salvadoran and Latin American talent to support projects from initial assessment through operation.
Since our beginnings as VisViva Data, we have turned electricity sector data into useful insights. Today we bring together grid connection studies, forecasting, storage and financial assessment, from feasibility through operation.
SECTORS / A WHOLE-SYSTEM PERSPECTIVE
Where energy changes,
we bring clarity.
From industrial facilities to utility-scale generation projects and power system planning.
Grids & power systems
Connection capacity, dynamic performance, contingencies, protection and integration of new generation.
Explore services ↗
Transition & flexibility
Long-term scenarios, storage, capacity expansion and market analysis to inform investment decisions.
Explore services ↗Public-domain sector photographs for illustration. They do not depict projects delivered by GVV Energy.
02 / OUR SOLUTIONS
From the first idea
to energy in operation.
Every project has its challenges.
Find the expertise you need.
01Power system & grid connection studies
We study generation projects at different scales and their integration into transmission and distribution networks. Our analyses cover load flow, N-1 contingencies, connection capacity, short circuit, electromechanical and electromagnetic stability, harmonics and protection coordination.
Deliverables: grid models, technical report, scenario assessment and responses to transmission system operator (TSO) or distribution system operator (DSO) comments within the agreed scope.
Discuss your grid connection ↗02Generation forecasting
Intraday, daily and weekly forecasts of generation, irradiance and temperature. We integrate plant data and automate submissions to the system or market operator according to applicable requirements.
Deliverables: forecasting configuration, data integration, automated submissions and support within the agreed operational scope.
Let’s talk about your plant ↗03Battery energy storage
Engineering and assessment of battery energy storage systems (BESS) for industrial backup and generation reserves. From electrical modelling and budgeting to installation and commissioning.
We assess power and energy ratings, critical loads, operating strategy, electrical safety and technical and financial feasibility.
Assess your BESS project ↗04Solar resource and firm capacity
We assess solar resource, energy production and firm generation capacity. We prepare hourly simulations, P50/P90 exceedance analyses and firm capacity studies, with documentation adapted to the operator and relevant authority.
Deliverables: resource assessment, hourly production, uncertainty analysis and firm capacity calculations.
Assess your solar resource ↗05Electricity market studies
We analyse electricity market dynamics to assess energy prices, dispatch, exchanges and commercial exposure. We combine financial models, PPA assessment, sensitivities and scenario analysis to support investment decisions.
Deliverables: documented assumptions, price scenarios, sensitivities and financial results to compare alternatives.
Tell us about your challenge ↗06Long-term energy simulations
We model generation and dispatch scenarios to assess energy production, prices and project feasibility. We analyse demand, hydrology, fuels, capacity expansion and exchanges to understand how the system changes over the long term.
The scope may include multi-year horizons, capacity expansion, renewable integration, storage and energy transition scenarios.
Let’s define your scenarios ↗07Financial analysis for energy projects
We turn technical and commercial assumptions into a financial model for comparing alternatives. We assess investment, operating costs, capital structure, energy and contract revenues, cash flow and result sensitivities.
Deliverables: financial model, comparable scenarios, return indicators and analysis of the factors that most affect project feasibility.
Let’s assess your investment ↗03 / MARKET STUDIES & PLANNING
Understand the market.
Model what comes next.
Understand how today’s changes may shape the value of your energy tomorrow.
Electricity market studies
We study prices, generation, demand, transactions and exchanges. We adapt each analysis to the rules, data and questions of the relevant market, with Central America as our starting point.
MARKETS · INTERCONNECTIONS · DATASimulations & scenarios
We assess demand, hydrology, fuel and expansion scenarios to study dispatch, energy production and prices over the long term.
ENERGY · CAPACITY · INVESTMENTModels for decisions
We develop traceable models to review assumptions, compare scenarios and reproduce results. The methodology is tailored to the client’s question while preserving data confidentiality.
TRACEABILITY · SCENARIOS · ANALYTICSREGIONAL KNOWLEDGE · INTERNATIONAL OUTLOOK
Guatemala · El Salvador · Honduras · Nicaragua · Costa Rica · Panama
OUR ORIGINS: VISVIVA DATA
It all started with data.
Our roots lie in data analysis for Central American electricity markets. That same perspective now connects our engineering work with operational and investment decisions.
FROM EL SALVADOR / FOR INTERNATIONAL CLIENTS
Local knowledge.
Collaboration across borders.
From El Salvador, we work with clients in the United States, Germany and Central America. We collaborate with developers, generators, investors and consultancies looking for technical judgement, close communication and deliverables that inform decisions.
End-to-end service
A defined technical scope, from information review to delivery and discussion of results.
An extension of your team
Specialist support with models, simulations and analysis to complement your engineering or consulting team.
Spanish & English delivery
Documentation and coordination in both languages, with deliverables tailored to the client and project.
Scope & confidentiality
We define data requirements, responsibilities, milestones and confidentiality terms at the start of each engagement.
OUR NETWORK / LOCAL INSIGHT, SHARED PERSPECTIVE
We know the context.
We connect the talent.
Salvadoran and Latin American talent, connected with collaborators in Mexico, Colombia, Ecuador and Peru. We combine international experience with first-hand knowledge of the markets where our collaborators work.
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El Salvador
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Mexico
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Colombia
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Ecuador
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Peru
↗04 / EXPERIENCE THAT BRINGS PERSPECTIVE
Different challenges.
The same depth of insight.
We connect technical experience, market insight and financial judgement to support decisions that matter.
GENERATION · GRIDS · INTEGRATION
Connecting new generation
Grid connection studies, dynamic performance, power quality and protection. We support the process from grid modelling to responses to TSO or DSO review comments.
FORECASTING · DATA · OPERATIONS
Anticipating operations
Solar and wind generation forecasting, data integration and automated submissions. Timely information for clearer scheduling, coordination and operations.
MARKETS · SCENARIOS · STRATEGY
Understanding the value of energy
Electricity market studies, dispatch scenarios and long-term projections. We analyse how demand, fuels, weather and expansion shape project opportunities.
FINANCE · RISK · DECISIONS
Building the investment case
Financial models, contract assessment and sensitivity analysis. We translate technical and commercial assumptions into cash flows, return indicators and comparable alternatives.
STORAGE · BACKUP · FLEXIBILITY
Designing flexibility and continuity
Assessment of storage, reserves and critical-load backup. We combine sizing, operating strategy and feasibility so the solution serves the project objective.
EFFICIENCY · SELF-CONSUMPTION · ANALYTICS
Turning information into action
Energy audits, self-consumption assessment and data analytics. We identify improvement opportunities and organise information to give each decision a stronger foundation.
Let’s discuss experience relevant to your project.
We share relevant scopes and comparable experience based on your project’s challenge and the confidentiality terms of each engagement.
05 / HOW WE WORK
Clarity at every
step of the way.
A technical conversation that becomes
a clear plan for your project.
- 01
Understand the challenge
We review your project, its data and its connection or operational requirements.
- 02
Build the solution
We define the scope and develop the models, studies or systems you need.
- 03
Support implementation
We deliver clear results and address feedback and project needs.
KNOWLEDGE / MODELS, DATA & DECISIONS
More depth.
Better questions.
Concepts that help define what your project needs before starting a study.
Power, energy or firm capacity?
Power, in MW, describes an instantaneous capability; energy, in MWh, describes production or storage over a period. Firm capacity assesses the contribution recognised under a specific methodology. Distinguishing these concepts helps compare alternatives on a consistent basis.
What does a long-term simulation tell you?
It explores how dispatch, production and prices change under different demand, weather, fuel and expansion assumptions. Results are scenarios conditioned on data and assumptions, which makes sensitivities and traceability essential.
How do we make a study useful for decisions?
We define the decision you want to make, review data quality and document assumptions. We compare scenarios, explain the factors that change results and deliver conclusions with their scope and limitations. Confidential client information is handled under the terms agreed for each project.
FROM DATA TO DECISIONS
Power system simulationEnergy modellingFinancial analysisForecasting & automationMarket intelligence
We define the methodology around the problem you need to solve, with documented assumptions, technical review and results your team can interpret and use.
THE NEXT STEP STARTS WITH A CONVERSATION
Your next project.
Our next connection.
Tell us what you are developing and how we can help.